U.S. patent application number 11/533659 was filed with the patent office on 2007-02-08 for condiment dispensing system.
Invention is credited to James J. Sanfilippo, John E. Sanfilippo, Javier Soria, Koon Wong.
Application Number | 20070029343 11/533659 |
Document ID | / |
Family ID | 37716745 |
Filed Date | 2007-02-08 |
United States Patent
Application |
20070029343 |
Kind Code |
A1 |
Sanfilippo; James J. ; et
al. |
February 8, 2007 |
Condiment Dispensing System
Abstract
A system for dispensing product includes a track support, the
track support comprising a one-piece frame and a roller assembly
slidably engaged with the one-piece frame, the roller assembly
including a first lobed roller and a second lobed roller. The
system further includes a valve assembly attached to a base portion
of the one-piece frame, wherein a flexible product filled bag is
retainable between the roller assembly and wherein the roller
assembly translates down the track support to force the product
toward the valve assembly.
Inventors: |
Sanfilippo; James J.;
(Barrington Hills, IL) ; Sanfilippo; John E.;
(Barrington Hills, IL) ; Soria; Javier;
(Northlake, IL) ; Wong; Koon; (Wheeling,
IL) |
Correspondence
Address: |
CARDINAL LAW GROUP
Suite 2000
1603 Orrington Avenue
Evanston
IL
60201
US
|
Family ID: |
37716745 |
Appl. No.: |
11/533659 |
Filed: |
September 20, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11031243 |
Jan 6, 2005 |
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11533659 |
Sep 20, 2006 |
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11031645 |
Jan 7, 2005 |
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11533659 |
Sep 20, 2006 |
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60718797 |
Sep 20, 2005 |
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60534581 |
Jan 6, 2004 |
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60534644 |
Jan 7, 2004 |
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60545122 |
Feb 17, 2004 |
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Current U.S.
Class: |
222/102 |
Current CPC
Class: |
G01F 11/32 20130101;
A47G 19/183 20130101; G01F 11/021 20130101; B67D 2001/0812
20130101; B67D 1/0001 20130101 |
Class at
Publication: |
222/102 |
International
Class: |
B65D 35/28 20060101
B65D035/28 |
Claims
1. A system for dispensing product, comprising: a track support,
the track support comprising a one-piece frame; a roller assembly
slidably engaged with the one-piece frame, the roller assembly
including a first lobed roller and a second lobed roller; and a
valve assembly attached to a base portion of the one-piece frame,
wherein a flexible product filled bag is retainable between the
roller assembly and wherein the roller assembly translates down the
track support to force the product toward the valve assembly.
2. The system of claim 1 wherein the valve assembly includes an
actuator to actuate the valve.
3. The system of claim 1 wherein the valve assembly is actuated by
a roller assembly control member.
4. The system of claim 1 wherein the flexible product filled bag
comprises a material selected from the group consisting of
biaxially oriented nylon material laminated to an
ethyl-vinyl-alcohol (EVOh) polyethelyne, uni-axially oriented
nylon, uni-axially oriented nylon laminated to EVOH, polypropylene,
polypropylene laminated to EVOH, uni-axially oriented nylon
laminated to EVOH and LLDPE, polypropylene laminated to EVOH
laminated to LLDPE, PVC, polystyrene, high impact styrene, a
barrier material, low density EVA blends, a material to tear
uniformly along a tear strip, and metallocene sealant
5. The system of claim 1 further comprising a top clip.
6. The system of claim 1 wherein the valve assembly further
includes a heating element.
7. The system of claim 1 wherein the valve assembly comprises a
front, a back and a spout receiving portion.
8. The system of claim 1 wherein the system dispenses product
directly to a dispenser.
9. The system of claim 8 wherein the dispenser comprises: a
container including a containment portion and a handle portion; a
pump assembly received in the containment portion; and a trigger
configured to actuate the pump assembly.
10. The system of claim 9 further comprising a removable cap
including at least one opening.
11. The system of claim 10 wherein the removable cap and the
trigger are color coordinated to correspond with a dispensed
condiment.
12. The system of claim 9 wherein the trigger includes a stop block
configured to control the amount of product dispensed.
13. The system of claim 12 wherein the stop block comprises a stop
member and an actuator button, the stop member moveable between a
stop position and a retracted position via actuation of the
actuator button.
14. The system of claim 9 further comprising at least one
dispensing indicator operably attached to the handle portion.
15. The system of claim 14 wherein the at least one dispensing
indicator comprises a click spring.
16. The system of claim 15 wherein the trigger further comprises at
least one click spring actuator, wherein each of the at least one
click spring actuators are positioned on the trigger to contact and
depress a corresponding click spring.
17. The system of claim 1 wherein the pump assembly comprises a rod
including a first knife blade receptacle, a cylinder including a
second knife blade receptacle, a piston movable within the cylinder
having a first knife blade and a valve having second knife blade,
wherein when the valve is open the first knife blade engages with
the first knife blade receptacle and when the valve is closed the
second knife blade engages with the second knife blade
receptacle.
18. A roller assembly for dispensing product from a bag,
comprising: a one-piece roller frame; a first lobed roller
rotatably attached to the roller frame; a second lobed roller
attached to the roller frame, the second lobed roller positioned
adjacent the first lobed roller in a fixed parallel arrangement to
form a nip; an actuator operably attached to one of the first and
second lobed roller, wherein product from a bag positioned in the
nip is dispensed as the first and second lobed rollers rotate
responsive to rotation of the actuator.
19. The assembly of claim 18 wherein the product filled bag
dispenses food product directly into a dispenser.
Description
RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Patent
Applications 60/718,797 filed Sep. 20, 2005. This application is a
continuation-in-part of U.S. application Ser. No. 11/031,243 filed
Jan. 6, 2005 which claims the benefit of U.S. Provisional Patent
Applications 60/534,581 filed Jan. 6, 2004. This application is
also a continuation-in-part of U.S. application Ser. No. 11/031,645
filed Jan. 7, 2005 which claims the benefit of U.S. Provisional
Patent Application, 60/534,644 filed Jan. 7, 2004, and 60/545,122
filed Feb. 17, 2004. The entirety of each application is hereby
incorporated by reference.
FIELD OF THE INVENTION
[0002] This invention generally relates to the art of dispensers
and, particularly, to a condiment dispenser.
BACKGROUND OF THE INVENTION
[0003] The ability to dispense a controlled quantity of a
condiment, such as ketchup, mustard, relish, mayonnaise, salad
dressings, hot wings sauce, spaghetti sauce, tartar sauce or other
sauces, in an efficient manner has been important in the food
service industry for many years. This is especially true for large
volume food handling operations such as fast food restaurants,
where employees and customers desire the ability to dispense
condiments quickly and conveniently, and where even a marginal
reduction in the waste of, or time required to dispense, condiments
leads to significant savings in cost.
[0004] Dispensing condiments from large, flexible plastic bags is
advantageous. Condiments can be easily packaged in large plastic
bags at a central facility and shipped to the point of sale. Bulk
plastic containers can incorporate gas barriers that allow
condiments to be packaged so that they can be stored at room
temperature, which makes the packages more convenient to ship and
store. Storing the condiments at room temperature saves time when
it is desirable that the condiment be served at room temperature by
eliminating the requirement that the condiment be allowed to warm
from a refrigerated temperature before use.
[0005] Flexible plastic bags are a common form of packaging for
food and thus are readily handled by employees without special
training. Further, storing the condiments at room temperature
reduces the expense of refrigeration. In addition, bags are often
more cost effective, easier to dispose of, and occupy less storage
space.
[0006] Historically, many products and condiments have been shipped
and stored in tin cans, often #10 tin cans. While tin cans offer
good shelf life performance, tin cans contribute to waste of
product that clings to the side of cans. Further, tin cans are
heavy to ship, store, and are heavy and voluminous for disposal.
Additionally, tin cans require can openers to open - retrieving the
opener reduces operational speed, and the opener may be difficult
to locate, further reducing efficiency. Opening tin cans may also
result in sharp edges that may tear garbage bags and pose a
laceration risk.
[0007] Other historical containers include gallon jugs and caulk
cartridge type cans. However, gallon jugs contribute to waste in
the same fashion as tin cans, and share many of the negative
attributes of tin cans. Caulk cartridge type cans leave less
product in the canister, but require priming of each can and
generate significant wasted product. For example, a 25-ounce
cartridge delivering a one-ounce payload necessarily wastes 4% of
the product due to priming.
[0008] Devices attempting to efficiently dispense condiments from
bulk flexible plastic bags exist, including devices that use
rollers advanced by gravity, by gears or rack and pinion means to
squeeze condiment out of the plastic bags, but these devices have
several disadvantages. Devices that use gravity actuated rollers or
gears are complicated to manufacture and may involve manipulating
the rollers in non-intuitive ways. Other devices that utilize more
complex means for releasing condiment from the bags require that
the bags incorporate specially designed fittings, including tubes
and couplings, which increase the cost and complexity of the
packaging and add to product waste during cleanup. Yet other
devices use motorized pumps that require electricity and possibly
pressurized gases to operate, which adds to the cost and size of
the dispensers, increasing manufacturing costs and adding
complexity during cleaning. Further, pumps may result in undesired
splatter, which both wastes product, as well as work effort to
clean the splatter. If a pump in the front of the store splatters,
customers may become unhappy. Motorized devices often require long
tubes that contribute to waste of the condiment and complicate
clean up. Furthermore, existing types of dispensers have a single
outlet for the condiment, which reduces efficiency at workstations
where multiple outlets can be accommodated. Additionally, tubes
reduce the range of movement and freedom of motion of the
applicator device. Additionally, devices using pressurized gas rely
on the gas, and in event of gas malfunction, or lack of gas supply,
the device is non-functional.
[0009] Other devices utilize fitments that require significant
expense, and contribute to waste if the fitment is improperly
fitted. For example, a plastic fitment is used to provide a valve
to a flexible bag. For use, the fitment must be separately
manufactured, and heat sealed to a flexible bag.
[0010] However, accurately fitting a flexible bag into any of these
dispensers has been problematic. An appropriate fit of the bag
within a dispensing device is important to ensure correct
insertion, as well as minimizing waste and potentially damaging the
package during use. It is further desirable to minimize the time
required to insert the bag, while simultaneously increasing the
accuracy of the insertion. It is also desirable to provide a bag
that minimizes clean up and disposal costs. It is further desirable
that the bag can be manufactured on a variety of packaging machines
with the insertion of customized seal jaws to create spouts,
locator pins and tear notches.
[0011] The present invention advances the art.
BRIEF SUMMARY OF THE INVENTION
[0012] One embodiment of the invention provides a system for
dispensing product includes a track support, the track support
comprising a one-piece frame and a roller assembly slidably engaged
with the one-piece frame, the roller assembly including a first
lobed roller and a second lobed roller. The system further includes
a valve assembly attached to a base portion of the one-piece frame,
wherein a flexible product filled bag is retainable between the
roller assembly and wherein the roller assembly translates down the
track support to force the product toward the valve assembly.
[0013] In another embodiment, a roller assembly for dispensing
product from a bag, comprises a one-piece roller frame, a first
lobed roller rotatably attached to the roller frame and a second
lobed roller attached to the roller frame, the second lobed roller
positioned adjacent the first lobed roller in a fixed parallel
arrangement to form a nip. The assembly further includes an
actuator operably attached to one of the first and second lobed
roller, wherein product from a bag positioned in the nip is
dispensed as the first and second lobed rollers rotate responsive
to rotation of the actuator.
[0014] The foregoing and other features and advantages of the
invention will become further apparent from the following detailed
description of the presently preferred embodiments, read in
conjunction with the accompanying drawings. The detailed
description and drawings are merely illustrative of the invention
rather than limiting, the scope of the invention being defined by
the appended claims and equivalents thereof.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0015] FIG. 1 is a back view of one embodiment of a system in
accordance with one embodiment of the invention;
[0016] FIG. 1A is a perspective view of one embodiment of a bag in
accordance with one aspect of the invention;
[0017] FIG. 1B is a perspective view of one embodiment of a bag in
accordance with one aspect of the invention;
[0018] FIG. 2A is a front view of one embodiment of a system in
accordance with one embodiment of the invention;
[0019] FIG. 3A is a cross-sectional view of one embodiment of a
dispenser in accordance with the invention;
[0020] FIG. 3B is an exterior view of the bottom of one embodiment
of a dispenser in accordance with the invention;
[0021] FIG. 4 is a view of one aspect of a system in accordance
with one embodiment, of the invention;
[0022] FIG. 5 is a view of one embodiment of a system in accordance
with one embodiment of the invention; and
[0023] FIG. 6 is a view of one embodiment of a system in accordance
with one embodiment of the invention;
[0024] FIG. 7 is a bottom view of one embodiment of a system in
accordance with one embodiment of the invention;
[0025] FIG. 8 is a view of one embodiment of a system in accordance
with one embodiment of the invention;
[0026] FIG. 9 is a perspective view of one embodiment of a system
in accordance with one aspect of the invention;
[0027] FIG. 10 is a perspective view of one embodiment of a system
in accordance with one aspect of the invention;
[0028] FIG. 11 is a perspective view of one embodiment of a system
in accordance with one aspect of the invention;
[0029] FIG. 12 is a perspective view of one embodiment of a system
in accordance with one aspect of the invention;
[0030] FIG. 13 is a perspective view of one embodiment of a system
in accordance with one aspect of the invention;
[0031] FIG. 14 illustrates a perspective exploded view of one
embodiment of a dispenser in accordance with one aspect of the
invention;
[0032] FIG. 15 illustrates a cross sectional exploded view of one
embodiment of a dual knife blade pump assembly in accordance with
one aspect of the invention;
[0033] FIGS. 16A and 16B illustrate perspective views of one
embodiment of removable cap in accordance with one aspect of the
invention;
[0034] FIG. 16C illustrates a top view of one embodiment of a
dispenser support in accordance with one aspect of the
invention;
[0035] FIG. 16D illustrates a perspective view of one embodiment of
a dispenser support in accordance with one aspect of the
invention
[0036] FIG. 16E illustrates a perspective view of one embodiment of
a removable cap in accordance with one aspect of the invention;
[0037] FIG. 16F illustrates another embodiment of a pump assembly
in accordance with one aspect of the invention;
[0038] FIGS. 17 and 18 illustrate one embodiment of operation of a
dispenser with a dual knife blade pump assembly in accordance with
one aspect of the invention;
[0039] FIG. 19 illustrates one embodiment of a method for
dispensing particulate condiment in accordance with one aspect of
the invention;
[0040] FIG. 20 illustrates one embodiment of a method for
dispensing particulate condiment in accordance with one aspect of
the invention;
[0041] FIG. 21 illustrates one embodiment of a system for
dispensing condiments in accordance with one aspect of the
invention.
[0042] FIG. 22 illustrates one embodiment of a system for
dispensing condiments in accordance with one aspect of the
invention;
[0043] FIG. 22A illustrates a cross section of one embodiment of a
pair of rollers suitable for use in the system illustrated in FIG.
22;
[0044] FIGS. 23 to 31 illustrate another embodiment of a spout for
use in a system for dispensing condiments in accordance with one
aspect of the invention;
[0045] FIG. 32 illustrates another embodiment of a dispenser for
dispensing condiments, made in accordance with the present
invention;
[0046] FIG. 33 is another embodiment of a valve assembly made in
accordance with the present invention.
DETAILED DESCRIPTION
[0047] FIG. 1 illustrates a system 10 in accordance with one
embodiment of the invention. System 10 includes a frame 20, top
clip 30, roller frame 40, and valve assembly 50. System 10 further
includes housing 5 (see FIG. 6) and dispenser 310 (see FIGS. 3A and
3B). In one embodiment, flexible bag 90 is retained and supported,
at least in part, by top clip 30 and held within roller assembly
40.
[0048] Housing 5 is operable to support frame 20. In one
embodiment, housing 5 is a freestanding unit, configurable to rest
upon, for example, a tabletop. In another embodiment, housing 5 is
configured as a wall-mounted unit. In one embodiment, frame 20
includes a male adaptor configured to mate with a female adaptor in
housing 5 for a sliding engagement between frame 20 and housing 5.
In one embodiment, frame 20 includes a female adaptor configured to
mate with a male adaptor in housing 5 for a sliding engagement
between frame 20 and housing 5. Embodiments with a female adaptor
on the frame 20 may have a groove, such as groove 101 depicted in
FIGS. 6 and 7, in either the top of the frame (such as, for
example, top clip 30), the bottom of the frame (such as, for
example, valve assembly 50), or both. Housing 5 may comprise any
appropriate material. In food applications, stainless steel or food
grade plastics may offer advantages, while in other applications,
another material, such as, for example, plastic, food grade
plastics, or PVC plastic may offer superior performance. In another
embodiment, housing 5 may be composed of aluminum or cast aluminum.
In another embodiment, housing 5 includes a support ledge for
supporting a handheld dispenser such that the contents of a bag may
be dispensed into the interior of the handheld dispenser. In one
embodiment, the handheld dispenser is as illustrated in FIGS. 3A
and 3B.
[0049] Frame 20 comprises two sides 21 connecting top clip 30 and
valve assembly 50. Frame 20 further includes slide support 26. In
one embodiment, sides 21 are disposed substantially at opposite
ends of top clip 30 and valve assembly 50, forming an approximately
quadrilateral configuration. In one embodiment, sides 21 include
grips configured to conform to human fingers to provide easy
handling. In one embodiment, sides 21 are smooth and non-scalloped.
In one embodiment, track support 26 connects top clip 30 and valve
assembly 50 at approximately a midpoint of a length L of top clip
30 and valve assembly 50. Frame 20 is sized so that a flexible bag
carried within the frame extends substantially from the top clip 30
to the valve assembly 50, with the top clip 30 supporting the bag
and valve assembly 50 controlling the dispensing of product
contained by the bag.
[0050] Slide support 26 includes a base portion 27 and top portion
28. Base portion 27 is attached to the valve assembly 50. Top
portion 28 is affixed to top clip 30. Track support 26 is
configured, in an example, so that roller frame 40 is slidably
engaged and translates axially along track support 26 via a bearing
surface of the roller frame 40. In one embodiment, roller frame 40
translates freely along track support 26. In another embodiment,
the interface between roller frame 40 and track support 26
comprises any variety of bearing configurations including a
frictional grip, low friction interface, teeth, or ratchets.
[0051] Track support 26 with base portion 27 and top portion 28 is
illustrated in FIG. 1 engaged with roller frame 40. In one
embodiment, track support 26 is configured for snap in and out
attachment with top clip 30 and valve assembly 50.
[0052] Top clip 30 includes front 24 hingedly attached to back 25.
In a closed configuration, front 24 and back 25 are positioned
parallel and positioned adjacent each other. In an open
configuration, front 24 and back 25 are non-parallel. In one
embodiment, front 24 is secured to back 25 with a latch assembly
23. In one embodiment, latch assembly 23 is integral with the front
24 and back 25. In another embodiment, latch assembly 23 includes a
spring 22 operable to bias front 24 and back 25 into an open
configuration. In one embodiment, back 25 is configured to be fixed
relative to frame 10, while front 24 is configured to open and
close relative to back 25.
[0053] Roller frame 40 includes a first roller arm 41 and a second
roller arm 42. While in a closed configuration, first roller arm 41
and second roller arm 42 are positioned parallel and adjacent each
other. In an open configuration, first roller arm and second roller
arm 42 are non-parallel. First roller arm 41 and second roller arm
42 are hingedly attached at one end of each. In one embodiment,
first and second roller arms are hingedly attached at the same end
as front 24 and back 25. First roller arm 41 and second roller arm
42, in one embodiment, are maintained in a closed configuration
with a latch assembly 39 (FIG. 2A). In one embodiment, the latch
assembly includes a spring operable to bias the first and second
roller arms into an open configuration. In one embodiment first
roller arm 41 and second roller arm 42 are rotatably attached to
the frame 40. In another embodiment, first roller arm 41 is
rotatably attached to frame 40 and second roller arm 42 is attached
to frame 40. In another embodiment, first and second roller arms
41, 42 are not hingedly attached. In this embodiment, roller arms
41, 42 are in a rotating, parallel configuration that does not
open, but, instead, the flexible bag is drawn into the roller by
rotation of the rollers.
[0054] First roller arm 41 includes a roller 43 axially disposed
with first roller arm 41 and rotatably affixed to the first roller
arm. Second roller arm 42 includes a roller 44 axially disposed
with second roller arm 42 and rotatably affixed to the second
roller arm 42. Each roller 43, 44 is rotatably attached to roller
frame 40. Roller frame 40 is configured to translate along track
support 26, and includes a bearing surface in second roller arm 42.
In one embodiment, second roller arm 42 is omitted, and roller 44
remains rotatably attached to roller frame 40. In embodiments
including a second roller arm 42, second roller arm 42 provides
additional strength or support for roller 44. In embodiments
without second roller arm 42, roller 44 is configured to be
sufficiently strong as to obviate a need for second roller arm, and
configured for latching attachment to roller frame 40.
[0055] When in a closed configuration, first and second arms 41, 42
are configured to retain a flexible bag containing product. When in
a closed configuration, roller arms 43, 44 form a nip 45. As first
and second rollers 43, 44 rotate, product from a bag positioned in
the nip is dispensed through a spout in the bag and through valve
assembly 50.
[0056] Roller 44 is operably attached to an actuator 46. Rotation
of the actuator 46 directly rotates roller 44, roller 43 rotates in
response to rotation of roller 44, and simultaneously translates
the rollers 43, 44 relative to a product filled bag positioned in
the nip to dispense food product. In one embodiment, actuator 46 is
a knob. In another embodiment, actuator 46 is a lever. In one
embodiment, actuator 46 is manually actuated, while in another
embodiment, actuator 46 is actuated with mechanical, electrical,
pneumatic, or magnetic assistance. In one embodiment, actuation of
actuator 46 results in vertical translation of the roller frame
along track support 26. In one embodiment, actuator 46 comprises a
portion of an actuator assembly 49. In one embodiment, actuator
assembly 49 includes a spring biasing the actuator 46 to a closed
configuration.
[0057] In one embodiment, at least one of the rollers 43, 44
comprises a knurled region 47. FIG. 2A depicts knurled region 47.
In one embodiment, the knurled region 47 extends along
substantially all of a length of the roller. In another embodiment,
at least one of the rollers 43, 44 includes a relief region 48 that
is not knurled. FIG. 2A best depicts relief region 48. In one
embodiment, a relief region 48 includes a covering, such as, for
example, an elastomeric or rubber sleeve to increase friction
between the relief region 48 and a complementary region on the
other roller. In other embodiments, the interface between relief
region 48 and knurled region 47 reduces adverse effects on the
material of a bag, such as bag 90, in the event that the material
bunches up in the interface. In other embodiments, the covering is
configured for a smooth, relatively high friction surface to
interface with the other roller. In embodiments where the relief
region 48 is a sleeve, the sleeve may be adhesively applied to the
roller. As used herein, a "knurl" is a protrusion that is regularly
spaced but does not extend axially along a substantial portion of
the roller without interruption. The word "knurl" further comprises
a series of small ridges or grooves on the surface or edge of a
metal object to aid in gripping, so long as the ridges or grooves
do not extend axially along a substantial portion of the roller
without interruption. In one embodiment, the knurl is a protrusion
in a pyramid configuration, with the peak of the pyramid extending
perpendicularly from the axis of the roller. In one embodiment,
both rollers 43, 44 are knurled in at least a knurled region 47. In
one embodiment, the knurled region 47 comprises a middle region of
the roller 43, 44, and the relief region 48 is formed adjacent at
least one end region of the roller 43, 44. In other embodiments, at
least a portion of knurled region 47 is adjacent at least one end
portion of the roller 43, 44. For example, knurled region 47 may be
immediately adjacent an end of roller 43, with a relief region 48
adjacent knurled region 47 and a second knurled region adjacent
relief region 48. In other embodiments, a knurl as used herein
includes, straight knurls, round knurls, splines or gear
attachments. In another embodiment, each roller is covered by an
elastomeric covering.
[0058] In one embodiment, first roller 43 includes a knurled region
47 between two relief regions 48 located at opposite ends of first
roller 43, while second roller 44 comprises a knurled region 47 but
does not include a relief region. In one embodiment, each relief
region 48 comprises no more than approximately 20% of the length L
of the roller 43.
[0059] In one embodiment, actuator 46 is substantially coaxial with
at least one of the roller arms 43, 44.
[0060] Valve assembly 50 includes a front 51 and a back 52. When in
a closed configuration, front 51 and back 52 are substantially
parallel and adjacent each other. In another embodiment, front 51
and back 52 are hingedly attached at one side of each. In one
embodiment, front 51 and back 52 are hingedly attached at the same
end as front 24 and back 25. Front 51 and back 52, in one
embodiment, are maintained in a closed configuration with a latch
assembly 59. In one embodiment, the latch assembly includes a
spring operable to bias the front 51 and back 52 into an open
configuration. The latch assembly may be constructed either
integrally with the front 51 and back 52, or the latch assembly may
be affixed to the valve assembly 50 with any known means of
attachment, including clips, hook and loop fasteners, snaps,
screws, rivets, zippers, or the like.
[0061] In one embodiment, valve assembly 50 further includes a
heating element (not shown) extending parallel with at least one of
front 51 or back 52. The heating element may heat the contained
product from about 1 degree to 180 degrees Fahrenheit. In one
embodiment, the heating element is configured to heat to 130
degrees Fahrenheit to heat the contents of bag 90. Other heating or
cooling configurations are within the scope of this disclosure.
[0062] Front 51 and back 52, in one embodiment, further include at
least one bag alignment indicator 57. In one embodiment, bag
alignment indicator 57 comprises a pin affixed with one of front 51
and 52 configured to match a pin receiving hole integral with the
other of front 51 and 52. The pin may be integral with one of front
51 and back 52. Bag alignment indicator 57 may be configured to
mate with bag alignment indicators of a flexible bag, discussed
below. In another embodiment, bag alignment indicators include flat
pins with or without barbs or hooks. In one embodiment, bag
alignment indicator 57 works in concert with at least one tang to
guide placement of the bag.
[0063] In one embodiment, track support 26 connects valve assembly
50 and roller frame 40 at approximately a midpoint of a length L of
valve assembly 50. In one embodiment, track support 26 connects
valve assembly 50 and roller frame 40 at approximately a midpoint
of a length L of roller frame 40.
[0064] In one embodiment, back 52 includes a groove 101 configured
to mate with a housing rail 645 (see FIG. 6) to provide additional
support to system 10 and provide a sliding connection between back
52 and housing 5. In one embodiment, groove 101 is configured to
slidingly engage with housing rail 645 (see, FIGS. 6, 7). In one
embodiment, groove 101 includes a taper at the front or back of the
groove to enhance alignment.
[0065] Valve assembly 50 further includes at least one spout
receiving portion 55 (see FIG. 2A). Spout receiving portion 55 is
configured to receive a spout 93 of a flexible bag 90 containing
product. Each spout receiving portion 55 is configured with
complementary cut-out areas 56 on each of front 51 and back 52, as
well as a valve 53 contained within the cut-out areas 56. Valve 53
is operably attached to an actuator 58 (see FIG. 7). In one
embodiment, actuator 58 comprises a lever that is hingedly attached
to the valve 53.
[0066] In yet another embodiment, valve 53 is actuated by the
actuator 46 that actuates the rollers 43, 44. In such an
embodiment, each valve 53 is connected with a link to the actuator
46, such that actuation of actuator 46 simultaneously actuates the
rollers 43, 44 and valves 53. Actuation of actuator 46 drives a
catch axial to the rollers, actuating a driving rod configured to
be driven by the catch. In one embodiment, the driving rod is
polygonal. In one embodiment, the polygon is a square shape. In
another embodiment, the polygon is a rectangular shape. Actuating
the driving rod causes the rod to rotate about an axis that is
non-parallel to the rollers. In one embodiment, the axis of the rod
is substantially perpendicular to the axis of the rollers. Rotation
of the driving rod causes translation of a valve catch in valve
assembly 50. The valve catch is configured to be driven by the
driving rod. In one embodiment, the valve catch includes a toggle.
In another embodiment, the valve catch includes a rotatable lever
configured to apply force to the valve. Translation of the valve
catch opens and closes the valves 53. In one embodiment, the valve
catch is configured such that valve 53 is locked in a closed
configuration, while even a slight rotation of the driving rod
causes the valve catch to disengage from its locked position, and
valve 53 will open. One embodiment of such a valve catch is as
illustrated in FIG. 4, as valve catch 445. In another such
embodiment, valve 53 is biased to a closed position with a spring
biasing the actuator 46. Thus, in certain embodiments, actuator 58
may be the identical structure as actuator 46. Actuation of
actuator 46 includes a variety of methods known in the art, such as
rotation of a knob-type actuator by any appropriate degree of
rotation, for example, 90 degrees, 45 degrees or 30 degrees.
[0067] The elements of an embodiment wherein actuator 46 actuates
the valve 53 are shown in exploded view in FIG. 4. At 400, the
actuator system 410 are illustrated as including knob 420, spring
415, receiver 423, driving element 425, driving disc 427, rod 430,
valve element 435, actuator catch 440, and actuator member 445.
Spring 415 biases the position of knob 420 relative to receiver
423. Receiver 423 mates with flights formed using conventional
techniques into the outer surface of driving element 425 to rotate
the rollers 42, 43 using driving disc 427 mated with the rollers,
as described above. Rotation of knob 420 simultaneously results in
the axial translation of actuator catch 440 by pressure applied to
surface 441 at one side of actuator member 447. Actuator member 447
and actuator catch 440 rotate relative to each other about hinge
444. Actuator catch 440 includes a reception hole configured such
that rod 430 slidably fits within reception hole 443. In one
embodiment, rod 430 and reception hole comprise a hexagonal
cross-section, although other polygonal shapes may be used. In one
embodiment, the rod has a square shape cross section and the
reception hole is square shaped. In another embodiment, the polygon
is a rectangular shape. In one embodiment, rod 430 and the
reception hole comprise a rectangular shape. Reception hole 443 is
hingedly attached with hinge 444 to the remaining portion of
actuator catch 440 such that axial translation of actuator catch
440 results in rotation of reception hole 443 and thus rotation of
rod 430. Rotation of rod 430 results in axial translation of valve
element 435 using similar principles--rotation of rod 430 causes
translation of valve 437. Reception hole 446 mates with hinge 444.
Actuator member 445 also functions as an actuator catch. In one
embodiment with two valves, system 410 includes a second actuator
member 445.
[0068] FIG. 33 illustrates another embodiment of a valve assembly,
3300, in accordance with the present invention. Valve assembly 3300
may be utilized with system 10 or any other system illustrated
herein. Valve assembly 3300 includes valve 3337 and valve actuator
3350. Valve 3337 includes actuator interface 3339 valve actuator
3350 includes an actuator opening 3352 for receiving a
complementary shaped rod, as described above, and an actuator
member 3354 for contacting actuator interface 3339. Valve 3300 is
shown in a closed position at 3300A and an open position at 3300B.
During operation, rotation of a rod, for example rod 430 of FIG. 4,
results in the pivoting of valve actuator 3350. As the valve
actuator pivots, actuator member 3354 moves from a central position
of actuator interface 3339 (shown in 3300A) to an outer position
(shown in 3300B). Movement of actuator member 3354 from the central
position to an outer position moves valve 3337 from a closed
position (3300A) to an open position (3300B).
[0069] Various embodiments of the invention include use of two
knobs 420--one on each side of the roller assembly. In embodiments
using a single knob 420, valve catch 440 is an unnecessary element
of the structure.
[0070] Valve 53 is configured to match the profile of a flexible
bag. In one embodiment, valve 53 is configured to provide product
from the contents of the flexible bag. In one embodiment, a
flexible bag includes a spout receiving portion configured to match
valve 53. In one embodiment, valve assembly 50 is configured such
that at least a portion of a lower sealed region of a bag extends
through the valve 53 such that the product dispensed by the bag
does not contact the valve 53 during dispensing. FIG. 7 is an
underside view of valve assembly 50.
[0071] As illustrated in FIG. 4, valve element 435 includes a
curved interface 436 for contacting the spout of the flexible bag
within the spout receiving portion. In another embodiment, valve
element 435 includes a flat interface that mates with a
corresponding flat interface of a spout receiving portion.
[0072] FIG. 22 illustrates another embodiment of a system 2200 in
accordance with the present invention. FIG. 22A illustrates a cross
section of rollers 2243 and 2244 of system 2200. System 2200
includes a track support 2220, top clip 2230, roller assembly 2240
and valve assembly 2250. In one embodiment, top clip 2230 is
similar to or the same as top clip 30 of system 10 illustrated in
FIG. 1. In one embodiment, valve assembly comprises a valve
assembly such as valve assembly 50 of system 10 illustrated in FIG.
1. In another embodiment, valve assembly 2250 is the same as or
similar to valve assembly 400 illustrated in FIG. 4. Those with
skill in the art will recognize that the valve assembly may
comprise any suitable form that allows condiment to move from the
flexible bag and into a dispenser.
[0073] In one embodiment, track support 2220 comprises a one-piece
roller frame. In one embodiment, roller frame 2220 is made of die
cast metal such as, for example, aluminum. The unitary construction
of roller frame 2220 provides for easier assembly of system 2200.
The arrangement of roller assembly 2240 is similar to roller
assembly 40 illustrated in FIG. 1. Roller assembly 2240 comprises a
first roller arm 2241 and a second roller arm 2242. First roller
arm includes first roller 2243 and second roller arm includes
second roller 2244. First roller 2243 and second roller 2244 each
include lobes. In this embodiment, rollers 2243 and 2244 are
manufactured by an extrusion process, as is known in the art. In
one embodiment, rollers 2243 and 2244 are extruded aluminum. In one
embodiment, the extruded aluminum is cut to a length sufficient to
form first roller arm 2241 or second roller arm 2242. The
respective lengths are then machined to provide means for
connecting the roller arms to the roller assembly 2240. In this
embodiment, the coordination of the lobed rollers provides for
increased amount of evacuation of the product contained in the
flexible bag 90 (FIGS. 1A and 1B), thereby decreasing the amount of
waste. The lobed rollers also work to reduce the frictional force.
In one embodiment, first roller arm 2241 and second roller arm 2242
are in a parallel configuration, relative to each other. In another
embodiment, the parallel configuration comprises a fixed parallel
configuration in that the rollers are not hingedly attached as
described above for system 10 illustrated in FIG. 1. In this
embodiment, the flexible bag 90 is inserted into system 2200 by
placing a top edge 94 of the flexible bag into the nip 2280 formed
by the first roller and the second roller and rotating the rollers
in order to draw the flexible bag edge into a dispensing
configuration.
[0074] Referring now to FIGS. 1A and 1B, system 10 further includes
a flexible bag 90 containing product to be dispensed. Bag 90
includes a product containment portion 92 and at least one spout
receiving portion 93 in communication with the product containment
portion. Product containment portion 92 is an interior region of
the bag 90 defined by a top sealed support portion 94, and at least
two sealed sidewall portions 91. Product containment portion is
further defined by a lower sealed region 95 adjacent a bottom end
99 of the containment portion 92. In one embodiment, the lower
sealed region 95 includes at least one bag alignment indicator 97,
wherein the bag alignment indicator 97 allows alignment of the
spout receiving portion 93 with a valve (e.g. valve 53) to position
the spout receiving portion to receive a dispenser spout. In one
embodiment, the bag alignment indicator comprises a hole configured
to mate with a bag alignment pin in valve assembly 50. In one
embodiment, bag 90 includes a single spout receiving portion 93,
while in another embodiment bag 90 includes two spout receiving
portions 93. In one embodiment, bag 90 is implemented as shown in
United States Design patent application 29/203,851, filed Apr. 16,
2004. In another embodiment, bag 90 comprises a tube sealed at its
ends. In another embodiment, bag 90 is a bag sealed at only a
single side.
[0075] In order to dispense the product contained within bag 90, a
tear strip 96 is included. Tear strip 96 may be configured to be
easily torn by hand, or may be configured to require a sharp
implement to cut along the strip. In embodiments configured to be
torn by hand, tear strip 96 may be perforated, or may comprise an
area where lower sealed region 95 has reduced thickness relative to
the remaining portions of lower sealed region 95. Tear strip 96, in
one embodiment, is located so that the at least one bag alignment
indicator 97 is disposed between the tear strip 96 and the product
containment portion 92. In one embodiment, tear strip 96 includes
an area without perforations, such as an area created by seal jaws
with a dulled portion.
[0076] In the embodiment illustrated in FIG. 1A, bag 90 includes
two spout receiving portions 93 configured to match two valves 53.
In one embodiment, lower sealed region 95 comprises a triangular
shape between the two spout receiving portions, such that any
product contained in product containment portion 92 will be biased
to flow to one of the two spout receiving portions.
[0077] In the embodiment illustrated in FIG. 1B bag 90 includes a
single spout receiving portion 93 disposed near an edge of lower
sealed region 95. In such an embodiment, lower sealed region 95 is
configured with a slope 89 such that any product contained in
product containment portion 92 is biased to flow to the spout
receiving portion. In one embodiment, the slope is an angle between
approximately 1 degree and approximately 5 degrees.
[0078] Spout receiving portion 93 is configured to dispense the
product contained within product containment portion. In one
embodiment, spout receiving portion 93 is configured to mate with a
spout 505 (see FIG. 5) to receive the product and convey the
product to a desired location. In one embodiment, the spout
includes an angle to dispense the product to a location other than
directly below the spout receiving portion. In one embodiment, the
spout is configured in an approximate "s" shape. In one embodiment,
the spout is carried within a hinged housing 510 external to the
system 10. In an embodiment, the hinged housing 510 comprises a
hinged attachment configured to attach to valve assembly 50. In
another embodiment the spout is configured to dispense the product
exterior to a housing carrying system 10.
[0079] Top sealed support portion 94 is configured to provide a
region for support. In one embodiment, top sealed support portion
94 is configured to be supported by top 22. In another embodiment,
roller frame 40 provides sufficient support when in a closed
configuration. In one embodiment, top sealed support portion 94 is
at an end of the food product containment portion opposite the
lower sealed region 95.
[0080] In one embodiment, bag 90 is constructed of a flexible
plastic capable of preserving the condiment at room temperature. In
another example, bag 90 is a barrier bag. At least one of edges of
the bag 94, 95, 91 are heat-sealed, and one or more openings spout
receiving portions 93 are molded into the lower sealed region. In
one embodiment, bag 90 comprises a flexible food grade plastic. In
one embodiment, the bag comprises a bi-axially oriented nylon
material laminated to an ethyl-vinyl-alcohol (EVOH) polyethylene or
metallocene sealant. In another embodiment, the bag comprises a
uni-axially oriented nylon or polypropylene laminated to an EVOH
and then laminated to a linear low-density polyethylene (LLDPE) or
metallocene sealant. Alternatively, the uni-axially oriented
polypropylene or nylon can be laminated to a 5 to 7 layer
EVOH--LLDPE sealant. In another embodiment, bag 90 comprises PVC,
polystyrene, or high-impact styrene. Other embodiments include the
use of linear low density blends as well as low density EVA
blends.
[0081] In another embodiment, bag 90 is composed of a laminated
material that provides uniform and consistent tearing properties at
least in the region adjacent to and including the at least one
spout receiving portion 93. One exemplary embodiment of bag 90
having uniform and consistent tearing properties is composed of a
three-ply laminated film. A first layer of the three-ply film is
composed of 100 gauge (1 ml) uniaxially oriented polypropylene.
[0082] The first layer is laminated to a second layer composed of
50 gauge (0.5 ml) biaxially oriented ethyl-vinyl-alcohol (EVOH).
The second layer is laminated to 250 gauge (2.5 ml) linear
low-density polyethylene.
[0083] In another embodiment, tear strip 96 is configured to
include at least one locating hole to further guide tearing of the
bag.
[0084] Another exemplary embodiment of bag 90 having the uniform
and consistent tearing properties is composed of a two-ply
laminated film. A first layer of the two-ply film is composed of
100 gauge (1 ml) uniaxially oriented polypropylene. The first layer
is laminated to a second layer composed of 300 gauge (3.0 ml)
EVOh/polyethylene.
[0085] In an exemplary embodiment, the system as described herein
may be used to dispense condiments both in the "front of the store"
and in the "back of store" using identical bags 90. Operation of
the system entails providing a system 10 and a bag 90 containing
product to be dispensed through the system 10. Roller assembly 40
is operated to configure roller assembly 40 into an open
configuration. An upper portion of bag 90 is inserted between
rollers 43, 44 such that the majority of product is located between
the rollers 43, 44 and the lower sealed region 95. Roller assembly
40 is then operated to configure roller assembly to a closed and
locked configuration. Roller assembly 40 is placed adjacent top
clip 30, and if sufficient material of bag 90 is available for
insertion into top clip 30, top clip 30 is operated to assume an
open configuration, at least a portion of the sufficient material
is placed between the arms of top clip 30 and top clip 30 is then
operated to assume a closed configuration. Valve assembly 50 is
operated to assume an open position and the lower sealed region 95
is placed between front 51 and back 52, such that at least one
spout receiving portion mates with at least one valve 53, and the
valve 53 is located between any tear strip 96 and the spout
receiving portion. In embodiments with bag alignment indicators,
the bag alignment indicators 59, 97 are also aligned. Valve
assembly 50 is then operated to assume a closed, and locked,
configuration.
[0086] An operator may choose to ensure that valve 53 is in a
closed configuration such that the product containment portion 92
is insulated from the tear strip 96. Tear strip 96 is then torn, or
a lower sealed portion is cut such that if valve 53 assumes an open
configuration, product disposed in product containment portion 92
may be dispensed from the bag into the desired receptacle. In one
embodiment, product is dispensed into a container, such as, for
example, the container described in FIGS. 3A and 3B. In another
embodiment, product is dispensed directly onto an area below valve
53.
[0087] In another embodiment, bag 90 is loaded into assembly 10 by
first opening the top clip and bottom, valve assembly. The rollers
remain closed and in a substantially parallel configuration. The
bag is positioned over the tangs and bag locators, and the valve
assembly is closed over the bag. The top portion of the bag is fed
through the rollers until a nip is formed. Once the nip is formed,
a sufficient portion of the bag is available to clip into top clip.
Having fully supported the bag, the bottom of the bag is torn or
cut off to enable dispensing of product from the bag into a
dispenser.
[0088] FIG. 3A illustrates a dispenser 310 comprising a reservoir
311 that contains the condiment, a pump 312 that releases the
condiment in controlled quantities, and a handle 313 with a trigger
333 that actuates the pump in accordance with one embodiment of the
invention. Pump 312 may also be referred to as a positive
displacement pump.
[0089] The reservoir 311 has an open top 320, sides 321, and a
bottom 322. In one embodiment, the reservoir 311 is generally
cylindrical, and the top 320 has a larger diameter than the bottom
322. In some embodiments, the top 320 is sized to facilitate easy
refilling of the reservoir 311. In another embodiment, the
dispenser 310 is substantially frusto-conical. Optionally, a cover
(not shown) can be placed over the top 320 to reduce the likelihood
of foreign matter failing into the reservoir 311. Additionally, a
cover may reduce dehydration of the contents of the reservoir.
[0090] FIG. 3B illustrates the bottom 322 of one embodiment of a
reservoir 311 comprising 5 holes 323. In other embodiments, the
bottom 322 contains a plurality of holes 323. Holes 323 permit the
condiment to exit the reservoir 311. The bottom 322 is sized and
the holes 323 are spaced so that the dispenser releases the
condiment onto a food product in a predetermined pattern, also
called a diffusion pattern. Holes 323 may be arranged in any number
of predetermined diffusion patterns. In one example, holes 323 are
arranged at the vertices of a pentagon. In another example, holes
323 are arranged at the vertices of a square with an additional
hole 323 at the center of the square.
[0091] The reservoir 311 is made, in one embodiment, of a single
piece of a plastic that does not react with food products, is
durable, and is easy to clean. In another embodiment, the reservoir
311 is constructed from a plurality of pieces that may be molded
together or formed using any appropriate fabrication technique. In
another embodiment, reservoir 311 comprises a high density
polyethelene (HDPE) or other food grade plastic that is resistant
to the contents of the reservoir. The embodiment shown in FIG. 3B
incorporates a plurality of horizontal lines 324 on the walls of
the reservoir 311 that indicate suggested minimum and maximum
levels for the condiment in the reservoir. The horizontal lines 324
are molded, in one embodiment, into the walls 321 of the reservoir
311. In another embodiment, additional horizontal lines 324 are
included to indicate other suggested fill levels, such as a level
to fill at times during which the condiment likely will not be
frequently used, such as, for example, late at night or during
off-hours.
[0092] In one embodiment, handle 313 actuates pump 312. Actuation
of pump 312 controls the flow of condiment from the reservoir 311.
The handle 313 includes a fixed component 331 and a movable trigger
332, as shown in FIG. 3A. In the embodiment shown in FIG. 3A, the
fixed component 331 is molded as an integral part of the reservoir
311. In another embodiment, fixed component 331 is hollow with an
open bottom. Fixed component 331 and trigger 332 are configured so
that trigger 332 actuates pump 312 and mates and is accepted into a
hollow portion of the fixed component 331. In one embodiment, the
fixed component 331 extends from the reservoir 311 at an angle that
allows the dispenser to be disposed above a target with bottom 322
of the dispenser level with the food product. Thus, fixed component
331, in an embodiment, extends from reservoir 311 at an angle
between 0 and 90 degrees. In such an embodiment, the operator's
hand may attain an ergonomically neutral position.
[0093] The trigger 332 is functionally connected to the pump 312,
and it is located on the handle 313. In one embodiment, an operator
can hold the dispenser 310 and actuate the pump 312 with one hand.
Several alternative structures exist that would perform the
function of the trigger 332, but the trigger 332 shown in the
drawings includes a lower arm 333, an axle 334, and an upper arm
336. The lower arm 333 extends below the fixed component 331 of the
trigger 332 and between the fixed component 331 and the reservoir
311, where an operator can apply force to the lower arm 333 and
actuate the trigger 332. Axle 334 operably and rotatably connects
trigger 332 with fixed component 331. In one embodiment, axle 334
is substantially cylindrical and rotates within bearing pockets
formed in the fixed component 331 of the handle 313. In one
embodiment, the bearing pockets are substantially the same diameter
as axle 334. In one embodiment, the bearing pockets are slotted to
allow for removal of the arm. Upper arm 336 extends from axle 334
to the topmost element of the pump 312. When force is applied to
lower arm 333 of trigger 332, trigger 332 rotates about the axle
334, moving upper arm 336 downward, and actuating pump 312. In the
embodiment illustrated in FIG. 3A, trigger 332 comprises finger
grips configured to match the contours of a human hand. In other
embodiments, trigger 332 is smooth.
[0094] In one embodiment, trigger 332 is configured so that the
pressure applied to trigger 332 determines which of at least two
volumes of product is released. For example, a two position trigger
may dispense 5 grams of product if 5 foot pounds of pressure is
applied to the trigger, and dispense 9 grams of product if more
than 6 foot pounds of pressure is applied. The configuration
actuates the pump to dispense a default volume of product, i.e. 5
grams in the above example, or a larger volume if desired. Such a
configuration may be desirable, for instance, if two similar
products are to receive the product. For example, a restaurant may
serve two similar hamburgers--a hamburger featuring a quarter pound
of hamburger and a hamburger featuring a half pound of hamburger.
In this example, the quarter pound hamburger may receive a smaller
volume of ketchup than the half pound hamburger, and this may be
selected by the amount of force applied to the trigger. In one
embodiment, the configuration of trigger 332 comprises a spring
loaded stop block, such as female block assembly 391.
[0095] In one embodiment, fixed element 331 includes a female block
assembly 391 configured to communicate with a male block assembly
390 of trigger 332. Male block assembly 390 mates with female block
assembly 91 to stop trigger 332 in an actuated position.
[0096] Pump 312 comprises an upper column, a lower column, a piston
342 and a cylinder 343. As shown in FIG. 3A, upper arm 336 includes
a cavity that receives the upper end of the upper column 340. The
upper column 340 extends from the cavity 337 in the upper arm 336
to the lower column. The bottom of the upper column 340 is closed,
and rests atop the lower column.
[0097] A vertical wall extends around the circumference of the
bottom. Opening 345 is sized to accept bottom 347 and vertical wall
344, and is configured so that the edge of the vertical wall 344
connects with the edge of the piston 342. In operation, the
vertical wall 344 forms an interface with the opening 345 of the
piston 342 when trigger 332 is squeezed. Wall 344 severs or
compresses any particulate matter that would interfere with an
interface between upper column 340 and the piston 342. In one
embodiment, vertical wall 344 is thinner than the reservoir
311.
[0098] Piston 342 rests in the upper chamber 348 of the pump
cylinder 343, as shown in FIG. 3A. Piston 342 includes a central
hole 349 through which the lower column 341 extends. Reservoir 311
and upper chamber 348 communicate through a plurality of piston
holes 346. The piston holes 346 have walls that are chamfered so as
to remove sharp edges at the top and bottom surfaces of the piston
342.
[0099] Pump cylinder 343 rests at the bottom of the reservoir 311.
In one embodiment, pump cylinder 343 is sized to form an interface
between the exterior of the cylinder 343 and the bottom of the
reservoir 311. In one embodiment, the interface created between the
exterior of cylinder 343 and the bottom of reservoir 311 prevents
the condiment from leaking around the cylinder. In addition to the
upper chamber 348, described above, pump cylinder 343 includes a
lower chamber 350 and a partition 351 that separates the upper
chamber from the lower chamber. Like the piston 342, the partition
351 has a central hole 352 through which the lower column 341
extends and a plurality of holes 353. In one embodiment, the holes
353 are chamfered to remove sharp edges at the top and bottom
surfaces of the partition. A cylindrical vertical wall 354 extends
below the partition 351 and forms an interface with the bottom
plate 355 of the lower column 341. In one embodiment, vertical wall
354 is thinner than the walls of the reservoir 311. In operation,
the vertical wall 353 severs or compresses any particulate matter
in the condiment, thereby improving the interface between the pump
cylinder 343 and the bottom plate 355 of the lower column 341.
[0100] As shown in FIG. 3A, the top of the lower column 341 is in
contact with the bottom of the upper column 340. The lower column
341 has a bottom plate 355 that fits into the thin vertical wall
354 of the pump cylinder 343 to interface, as described above.
Upper plate 356 of lower column 341 is positioned below the piston
342. The upper plate 356 is positioned so as to engage the piston
342 but not to obstruct the piston holes 346. A spring (not shown)
biases lower column 341 to form a seal between bottom plate 355 and
pump cylinder 343. The spring further biases lower column 341 so
that the piston 342 is located near the top of the upper chamber
348 when the trigger 332 is not actuated.
[0101] The operation of the embodiment of the invention shown in
FIG. 3A is as follows. When the trigger 332 is not depressed, the
lower column 341 is positioned so that the bottom plate 355 forms a
seal with the vertical walls 354 of the pump cylinder 343. The
piston 342 is positioned at the top of the upper chamber 348, and a
gap exists between the piston and the upper column 340. In this
position, the condiment can flow from the reservoir 311 through the
gap between the piston 342 and the upper column 340 and through the
piston holes 346 into the upper chamber 348 of the pump cylinder
343. The seal between the bottom plate 355 and the vertical walls
354 of the pump cylinder 343 prevents the condiment from flowing
into the lower chamber 350 and exiting through the holes 323 in the
bottom 322 of the dispenser 310.
[0102] On actuation of trigger 332, the vertical wall 344 moves
downward and engages with wall 345 of the piston 342, forming an
interface that prevents further condiment from flowing into the
upper chamber 348. The action of the trigger 332 also moves the
lower column 341 downward, which forms a gap between the bottom
plate 355 and the pump cylinder 343 due to pressure of the
condiment, permitting condiment in the upper chamber 348 to flow
through the holes 353 of the pump partition 351 and out the holes
323 in the bottom 322 of the dispenser. Further action of the
trigger 332 depresses the piston 342, thereby forcing the condiment
in the upper chamber 348 out of the dispenser.
[0103] When the trigger 332 is released, lower column 341 moves
upward as biased by the lower spring, restoring the interface
between the bottom plate 355 and the vertical walls 354 of the pump
cylinder 343. The upper plate 356 engages the piston 342 and moves
piston 342 upward to its original position near the top of the
upper chamber 348. The upper column 340 is biased upward by the
upper spring, restoring the gap between the piston wall 345 and the
vertical wall 344. In this position, condiment flows into the upper
chamber 348 but not the lower chamber 350, and the dispenser 310 is
ready to be used again.
[0104] A container in accordance with the embodiments illustrated
in FIGS. 3A and 3B may be constructed of modular components that
may be disassembled and reassembled.
[0105] FIG. 14 illustrates another embodiment of a dispenser in
accordance with another aspect of the invention. FIG. 14
illustrates a dispenser 1400 including a dual knife blade pump
assembly with a check valve.
[0106] Dispenser 1400 includes a trigger 1405 operably connected to
rod 1410. In one embodiment, trigger 1405 is manufactured as a
unitary piece, including protrusions configured to mate with
holding gaps 1407 manufactured into a receptacle 1408 of grip 1409.
Grip 1409 further includes stop block 1475. Stop block 1475 is
configured to control the distance that can be traveled between
trigger 1405 and grip 1409. In one embodiment, stop block 1475 is
removable and configured to control the amount of product
dispensable with dispenser 1400. For example, one stop block is
configured to allow trigger 1405 to displace a certain distance to
dispense 5 grams of product. In another example, a different stop
block is configured to allow trigger 1405 to displace a different
distance to dispense 3 grams of product. In another example, stop
block 1475 is configured with a spring load to enable multiple
levels of product dispensing. For example, a spring loaded stop
block is configured so that displacing trigger 1405 until the
handle meets the resistance from the spring dispenses 5 grams of
product, while continuing the displacement and overcoming the
spring resistance results in dispensing 7 grams of product. In
other embodiments, stop block 1475 is configured to mount to
trigger 1405.
[0107] Trigger 1405 is configured to slide through receptacle 1408,
such that when properly assembled trigger 1405 is disposed between
handle portion 1409 and the body of container 1420. This
configuration is illustrated in FIGS. 17 (trigger 1405 in a
non-deployed position) and 18 (trigger 1405 in a deployed
position). Operation of trigger 1405 moves handle closer or farther
away from a lower surface 1498. In other words, if a human holds
dispenser 1400 in their right hand, in a `hand-shaking` fashion,
the user's fingers surround trigger 1405 while a palm of the hand
surrounds grip 1409. Application of pressure by the user's fingers
moves the trigger 1405 about axis 1493 and closer to handle portion
1409 in "gripping" fashion. In one embodiment, trigger 1405
includes finger guard 1404 configured to facilitate handling
dispenser 1400. In another embodiment, trigger 1405 includes rest
position blocks 1401 configured to limit trigger upstroke.
[0108] Dispenser 1400 includes a container 1420. Container 1420
includes a containment portion 1421 configured to hold product
within dispenser 1400. Container 1420 further includes grip 1409,
and at least one wing 1423. In one embodiment, wing 1423 is
configured as a protrusion extending outward from an outer wall of
the containment portion 1421 and substantially perpendicular to an
axis extending through a centerline 1426 of the product area. In
one embodiment, the at least one wing 1423 is shaped to mate with a
wing receptacle of a dispenser support (FIG. 16D). In one
embodiment, wing 1423 is rounded to mate with a rounded receptacle.
In another embodiment, wing 1423 is rectangular to mate with a
complementarily shaped wing receptacle. In one embodiment, wing
1423 comprises a vertical ridge. In one embodiment, wing 1423 is
any structure configured to guide placement of the dispenser. In
one embodiment, at least one wing 1423 is manufactured integrally
with container 1420. In one embodiment, wing 1423 is configured to
guide the dispenser to prevent `painting` or spreading of the
contents of a dispenser upon a roller assembly or a housing
supporting the roller assembly. In one embodiment, a wing 1423
reduces mess involved in operation of the dispenser, facilitating
clean up. In another embodiment, container 1420 includes visual
indicators 1422 for at least two fill levels. For example,
container 1420 includes a visual indicator for a minimum fill
level, a maximum fill level and a "night" fill level. Container
1420 further includes dual knife blade pump assembly 1440,
described in further detail in FIG. 15 below.
[0109] Trigger 1405 is configured to rotate about an axis 1493
between the protrusions when fitted into the gaps 1408. Thus, in
operation, trigger 1405 rotates about axis 1493 to bring trigger
1405 closer or farther from grip 1409. Trigger 1405 is, in one
embodiment, configured to actuate the dual knife blade pump
assembly.
[0110] Dispenser 1400 further includes a removable cap 1430. In one
embodiment, removable cap is configured to be screwed on to a cap
portion 1431 of container 1420. In other embodiments, the removable
cap may be attached to the cap portion by a snaps, hinge, rivets,
pins or bayonet style attachment devices. Cap 1430 includes a top
surface 1432 and bottom surface 1433. Top surface 1432 is
configured to be in contact with product prior to dispensing the
product, while bottom surface 1433 is opposite top surface 1432.
Cap 1430 includes at least one hole 1437 (FIGS. 16A, 16B) extending
through the cap 1430 and extending from top surface 1432 through to
bottom surface 1433 and configured to dispense the product
contained in container 1420. The holes are configured to create a
diffusion pattern, and each hole has a diameter configured to
affect the diffusion pattern of the product and may also be
configured to dispense particulates contained in the product. For
example, a cap 1430 configured to dispense Thousand Island dressing
must have holes with a diameter sufficient to dispense the
particulates contained in Thousand Island dressing. In another
embodiment, cap 1430 includes single filers disposed on top surface
1432 to direct product flow through the holes and to direct any
particulates to line up single file for dispensing through the
holes. See, FIG. 16E, below. In one embodiment, the single filers
are manufactured into top surface 1432. In another embodiment, top
surface 1432 is chamfered to improve product flow. In another
embodiment, dispenser 1400 is one element of a system to dispense
product, the system further including a plurality of matched
removable caps. In embodiments featuring a plurality of matched
removable caps, the caps may also be matched with stop blocks to
control the amount of product dispensed.
[0111] FIG. 16A illustrates one embodiment of a cap 1430 in
accordance with one embodiment of the invention. As illustrated in
FIG. 16A, cap 1430 features 5 holes 1437. FIG. 16B illustrates one
embodiment of a cap 1430 in accordance with one embodiment of the
invention. As illustrated in FIG. 16B, cap 1430 features 3 holes
1437. FIG. 16E illustrates another embodiment of a cap 1430 in
accordance with another aspect of the invention. FIG. 16E shows top
surface 1432 of cap 1430, including 3 holes 1437 and single filers
1499. In one embodiment, single filers 1499 comprise a groove
chamfered into top surface 1432 to guide movement of particulate
matter through holes 1437. Single filers 1499 comprise a groove
with increasing depth, i.e., a deeper cut through cap 1430,
approaching holes 1437. FIG. 16E additionally illustrates screw
threads 1998 cut or formed into cap 1430 for attachment to
container 1420, although any other appropriate means may be used
for attachment, including snap fitting, hinge or bayonet style
attachments.
[0112] FIG. 16C illustrates a top view of a dispenser support 1686
in accordance with one aspect of the invention. Dispenser support
1686 includes wing receptacle 1667 formed within the dispenser
support. Wing receptacle 1667 is configured to engage with a wing
portion 1423 of dispenser 1400. FIG. 16D illustrates a perspective
view of dispenser support 1686 in accordance with one aspect of the
invention. FIG. 16D further shows wing receptacles 1667 formed in
dispenser support 1686. Wing receptacles 1667 include wing
engagement portion 1668 formed within the dispenser support 1686.
As shown in FIGS. 16C and 16D, dispenser support 1686 is configured
with two wing receptacles 1667. It is apparent that any number of
wing receptacles 1667 may be formed in a dispenser support 1686. In
one embodiment, wing engagement portion 1668 includes wing locator
1669 configured to indicate that a product containment portion,
i.e. product containment portion 1421, is in its desired position,
and that dispenser 1400 is appropriately positioned. In one
embodiment, dispenser support 1686 is configured to attach to a
housing, such as housing 5, below a dispenser, such as the roller
assembly previously discussed.
[0113] FIG. 15 illustrates one embodiment of a dual knife blade
pump assembly 1440 in accordance with one embodiment of the
invention. Trigger 1405 actuates the pump assembly, and in one
embodiment, is implemented as trigger 1405 as described above with
reference to FIG. 14.
[0114] Trigger 1405 operably connects to rod 1510. In one
embodiment, trigger 1405 attaches to rod 1510 with a snap, although
other connection methods are anticipated and included in this
disclosure. Rod 1510 includes a lower region 1513. Lower region
1513 includes first knife blade receptacle 1520. First knife blade
receptacle 1520 is configured to mate with first knife blade 1530.
In one embodiment, first knife blade receptacle 1520 is a chamfered
surface formed in lower region 1513 and configured to closely meet
with first knife blade 1530. First knife blade 1530 and first knife
blade receptacle 1520 forms an upper knife blade assembly.
Manufacturing tolerances for the upper knife blade assembly should
be tight, as engagement between first knife blade 1530 and first
knife blade receptacle 1520 is especially beneficial for the
invention. It should be noted that although metallic knife blades
may be used to create a relatively sharp knife edge, metallic knife
edges are not necessary, and first knife blade 1530 and first knife
blade receptacle 1520 may be molded from plastics or other material
as a unitary part.
[0115] Piston 1540 includes first knife blade 1530 and includes at
least one product opening to allow product to flow from around rod
1510 and through piston 1540 to cylinder 1550. In one embodiment,
each product opening is chamfered to minimize the number of
surfaces with a plane perpendicular to an axis 1501 running through
a centerline of dual knife blade pump assembly 1440. Piston 1540
slides along pin 1543. In one embodiment, pin 1543 is made as
unitary construction with rod 1510, while in other embodiments, pin
1543 is a separate piece configured for operable attachment to rod
1510. Although pin 1543 is shown in FIGS. 14 and 15 as disposed
between rod 1510 and piston 1540, in one embodiment, pin 1543 is
disposed between piston 1540 and spring 1545. This embodiment is
illustrated in FIG. 16F.
[0116] It should be noted that first knife blade 1530 could be
disposed upon rod 1510 and that first knife blade receptacle 1520
could be configured on piston 1540, and that such a configuration
is considered the equivalent.
[0117] First knife blade 1530 is disposed on an upper surface 1531
and configured to mate with first knife blade receptacle 1520.
Piston 1540 further includes a lower surface 1532 including an
upper spring seat 1537. As shown in FIG. 16F, upper spring seat
1537 is disposed on pin 1543. Returning to FIG. 15, upper spring
seat 1537 is configured to meet with spring 1545 so as to provide a
surface resistive to forces applied by spring 1545. Forces may be
applied to spring 1545 by upper spring seat 1537 or by lower spring
seat 1548.
[0118] Cylinder 1550 surrounds spring 1545 and is operably disposed
within product portion 1495 of FIG. 14. Cylinder 1550 is configured
for sliding engagement within product portion 1495 such that
cylinder 1550 may be easily removed from product portion 1495, e.g.
for cleaning. In one embodiment, the inner diameter of product
portion 1495 is substantially the same as the outer diameter of
cylinder 1550 for a snug fit. Cylinder 1550 includes an inner wall
and an outer wall. The inner wall of cylinder 1550 includes lower
spring seat 1548. In one embodiment, lower spring seat 1548
comprises a section of the inner wall with a smaller inner diameter
creating a surface substantially perpendicular to axis 1501 wide
enough to support spring 1545. Cylinder 1550 further includes
openings 1555 configured to allow fluidic communication between an
area surrounding spring 1545 and valve 1570. In one embodiment,
cylinder openings 1555 are configured without surfaces
perpendicular to axis 1501. In one embodiment, each surface of
cylinder 1550 is chamfered. In another embodiment, each cylinder
openings 1555 includes single filers chamfered to channel any
particulate matter through a cylinder openings 1555. Cylinder 1550
further includes valve guide 1565 configured to guide displacement
of valve 1570 along axis 1501. Cylinder 1550 further includes
second knife blade 1580 configured to mate with valve knife blade
receptacle 1590. In one embodiment, cylinder openings 1555 comprise
holes. Cylinder openings 1555 may be any suitable shape, including,
round holes, oblong holes, slots, slits, and the like.
[0119] Valve 1570 displaces along axis 1501 to dispense product,
guided by valve guide 1565. Valve 1570 further includes second
knife blade receptacle 1590 and bottom spring seat 1595 configured
to provide a surface for spring 1575. The combination of second
knife blade 1580 and second knife blade receptacle 1590 forms a
lower knife blade assembly. The upper knife blade assembly and
lower knife blade assembly form a dual knife blade assembly.
Manufacturing tolerances for the lower knife blade assembly should
be reasonably tight, as engagement between second knife blade 1580
and valve knife blade receptacle 1590 is especially beneficial for
the invention. It should be noted that although metallic knife
blades may be used to create a relatively sharp knife-edge,
metallic knife-edges are not necessary, and second knife blade 1580
and second knife blade receptacle 1590 may be molded from plastics
or other material as a unitary part.
[0120] It should be noted that second knife blade 1580 could be
disposed upon valve 1570 and that second knife blade receptacle
1590 could be configured on cylinder 1550, and that such a
configuration is considered the equivalent.
[0121] Operation of dispenser 1400 is described as follows,
referencing FIGS. 14, 15, 17 and 18. In operation, dispenser 1400
operates to dispense controlled amounts of a fluid, such as a
condiment. For example, dispenser 1400 dispenses controlled amounts
of tartar sauce, ketchup, or Thousand Island dressing. The dual
knife blade assembly of pump 1440 is especially well suited for
fluids containing particulates, i.e., Thousand Island dressing,
although the pump is equally suited for fluids that do not contain
particulates, i.e., ketchup.
[0122] When dispenser 1400 has no product contained in cylinder
1550, the dual knife blade pump assembly must be primed for its
first use. It should be noted that so long as the amount of product
in containment portion 1421 does not fall below a certain "minimum
level," no further priming is necessary until dispenser 1400 is
emptied of product again, such as for cleaning.
[0123] Priming the dual knife blade pump assembly comprises filling
cylinder 1550 with product. Prior to priming, trigger 1405 sits at
rest in a non-deployed position. Actuation of trigger 1405 to
operate dispenser 1400 moves trigger 1405 closer to grip 1409.
Movement of trigger 1405 displaces rod 1510 axially along axis
1501. When rod 1510 is at its uppermost position (trigger 1405 is
in its non-deployed position), product in containment portion 1421
flows around lower region 1513 and through holes 1531, filling
cylinder 1550 with product. When space in the pump assembly has
been filled with product, the dual knife blade pump assembly is
said to be primed.
[0124] After priming, dispenser 1400 is set to dispense product.
Dispenser 1400 is shown in a configuration ready to dispense
product in FIG. 17, and in a deployed configuration in FIG. 18.
Again, rod 1510 is displaced along axis 1501 by trigger 1405.
Displacement of rod 1510 in direction A moves piston 1540 in
direction A after the first knife blade engages, and forces product
within cylinder 1550 through holes 1565 and through valve 1570,
over knife blade receptacle 1590 and through cap 1430. As piston
1540 comes in contact with rod 1510, first knife blade receptacle
1520 meets first knife blade 1530. Contact between first knife
blade receptacle 1520 and first knife blade 1530 creates a seal,
and effectively or substantially severs or compresses any
particulate that is disposed between the complementary surfaces of
first knife blade receptacle 1520 and first knife blade 1530.
Movement of piston 1540 in direction A loads spring 1545. Further,
movement of the product over valve 1570 loads spring 1575.
[0125] Having dispensed the product contained within cylinder 1550,
trigger 1405 returns to its non-deployed position, displacing rod
1510 in direction B. Displacement of rod 1510 effectively breaks
the interface between first knife blade receptacle 1520 and first
knife blade 1530. The removal of the force applied in direction A
removes the forces from spring 1545 and dispensing the product
reduces the forces from spring 1575, allowing each spring to unload
its loaded force, biasing rod 1510 in direction B. Unloading spring
1575 moves valve 1570 in direction B until second knife blade 1580
and second knife blade receptacle 1590 meet. The contact between
second knife blade 1580 and second knife blade receptacle 1590
creates an effective seal, and effectively or substantially
compresses or severs any particulate that is disposed between the
complementary surfaces second knife blade 1580 and valve knife
blade receptacle 1590. Product then flows into cylinder 1550, as
valve 1570 has closed, and piston 1540 has separated from cylinder
1550 moving through the product, creating a gap between first knife
blade receptacle 1520 and first knife blade 1530.
[0126] When dispensing relatively viscous products, suck back
created by movement of the piston 1540 assists in moving the valve
and releasing forces from spring 1575. Additionally, suck back will
assist in reducing undesired product drip from the removable cap
and/or bottom openings.
[0127] During operation as described herein, when the valve is
open, the first knife blade 1530 engages with first knife blade
receptacle 1520. Conversely, when the valve is closed, the second
knife blade 1580 engages with second knife blade receptacle 1590.
In one embodiment, engagement between the respective knife blades
and knife blade receptacles creates a seal.
[0128] In one embodiment, stop block 1475 and cap 1430 are a
matched pair, such that stop block 1475 is configured to be
removable from grip 1409. For example, both stop block 1475 and cap
1430 are colored red for a dispenser configuration to dispense
ketchup. In another example, both stop block 1475 and cap 1430 are
colored white for a dispenser configuration to dispense tartar
sauce. In other embodiments, stop block 1475 and cap 1430 are
inscribed with writing to indicate either a product to be
dispensed, or an amount of product to be dispensed. In another
embodiment, the trigger is configured to actuate the pump assembly.
In yet another embodiment, the trigger includes a stop block
configured to control the amount of product dispensed with a single
pump actuation.
[0129] In another embodiment, stop blocks 1475 are a portion of the
trigger, and the triggers are matched to the removable cap.
[0130] FIG. 32 illustrates another embodiment of a dispenser 3200,
in accordance with the present invention. Dispenser 3200 includes a
reservoir 3211 that contains the condiment, a pump 3212 that
releases the condiment in controlled quantities, and a handle 3213
with a trigger 3233 that actuates the pump in accordance with one
embodiment of the invention. Reservoir 3211 and pump 3212 may be
the same as or similar to reservoir 311, 1420 and pump 312 1440
described above and illustrated in FIGS. 3A, 3B, 14 and 15.
[0131] Dispenser 3200 includes a trigger 3233 operably connected to
pump 3212. In one embodiment, trigger 3233 is configured to
dispense two different volumes of condiment with the inclusion of a
stop block 3275 on an upper portion 3270 of trigger 3233. In this
embodiment, stop block 3275 includes a stop member 3277 and an
actuator button 3278. Stop member 3277 moves between a stop
position (shown in FIG. 32) and a retracted position by actuation
of actuator button 3278. In use, when stop member 3277 is in the
stop position trigger 3233 is prevented from moving beyond a first
dispensing position. The first dispensing position allows the
dispensing of a first amount of condiment. When actuator button
3278 is depressed by the user, stop member 3277 moves to a
retracted position thereby allowing the trigger to move into a
second dispensing position for dispensing a second amount of
condiment. In an example, movement of trigger 3233 into the first
dispensing position causes the dispensing of five grams of
condiment from the dispenser. Then, actuation of actuator button
3278 and movement of trigger 3233 into the second dispensing
position results in the dispensing of an additional two grams of
condiment from the dispenser. Those with skill in the art will
appreciate that the amount of condiment dispensed may vary
depending on such factors as the application, the type of condiment
and the like.
[0132] Dispenser 3200 further includes at least one dispensing
indicator 3215, 3216 for indicating to the user when the trigger
has reached a dispensing position. In one embodiment, dispensing
indicator 3215, 3216 comprise a click spring operably attached to
handle 3213. When depressed, the click spring 3215, 3216 emits an
audible click, indicating to the user that the trigger 3233 has
reached a first or a second dispensing position. Trigger 3233
includes a click spring actuator for each click spring attached to
handle 3213. In this embodiment, trigger 3233 includes a first
click spring actuator 3235 for contacting and depressing click
spring 3215 when trigger 3233 reaches the first dispensing position
and a second click spring actuator 3236 for contacting and
depressing click spring 3216 when trigger 3233 reaches the second
dispensing position. Those with skill in the art will appreciate
that dispenser 3200 may include any type of dispensing indicator
suitable for indicating to the user when the proper amount of
condiment has been dispensed.
[0133] Dispenser 3200 also includes a removable cap 3230 with at
least one opening 3237 through which the condiment is dispensed. In
one embodiment, cap 3230 is threadedly attached to a cap portion
3241 of reservoir 3211. Cap 3230 may be the same as or similar to
cap 1430 illustrated in FIGS. 14, 16A and 16B. In one embodiment,
the removable cap 3230 and the trigger 3233 are color coded to
indicate a matched pair. In one embodiment, the color also
indicates or otherwise relates to the condiment to be dispensed. In
an example, the cap 3230 and the trigger 3233 are colored red for
use when dispensing ketchup and colored yellow for use when
dispensing mustard.
[0134] FIG. 8 illustrates one embodiment of a housing for a system
10 in accordance with one aspect of the invention. As illustrated
in FIG. 8, housing 810 includes a hinged door 820 providing
selective access to an interior portion (not shown) of housing 810.
Housing 810 further includes a base portion 830, support portion
840 and product portion 850. Product portion 850 includes an
interior region configured to entirely enclose system 10 as
described in FIGS. 1 and 2 with a bag 90 as described in FIGS. 1A
and 1B. Housing 810 further includes a gap 860 configured to be in
sliding engagement with actuator assembly 49 such that as product
is dispensed from bag 90, actuator 46 descends along gap 860. Base
portion 830 may include spill portion 831. As better illustrated in
FIG. 5, housing 810 provides access for a spout 505 to dispense the
product contained within bag 90.
[0135] FIG. 9 illustrates one embodiment of a "front-of-store"
system in accordance with one embodiment of the invention. FIG. 9
illustrates a housing 905 for enclosing system 10 as described
above. Housing 905 includes hinged doors 920 and 921 rotatable
between a closed configuration wherein doors 920 and 921 abut each
other and an open configuration wherein doors 920 and 921 are not
abutting. Housing 905 further includes a base portion 930 and
product portion 950. Doors 920 and 921 include a locking device 925
configured to maintain doors 920 and 921 in a closed configuration.
As depicted in FIG. 9, locking device 925 comprises a slotted
configuration, although those of ordinary skill in the art will
readily recognize a number of other locking devices 925 that would
be operable to maintain doors 920 and 921 in a closed
configuration. Such other locking devices may comprise hook and
loop fasteners (e.g. Velcro.RTM.-brand fasteners), zippers, snaps,
screws, rivets, latches or other similar devices. Locking device
925 may also comprise means to secure a padlock or similar security
device to the locking device 925 to reduce incidence of
unauthorized access to product portion 950. A cup dispenser 980 may
be affixed to a side of the housing 905 to dispense souffle cups
982. In another embodiment, the cup dispenser may be located within
housing 905. The dispenser may dispense paper souffle cups, as
known in the art, or modified cups as described below.
[0136] Housing 905 further includes support clip 945. Support clip
945 is configured to mate with spout housing 1005 (described below
in FIG. 10). Spout housing 1005 slides into locking engagement with
support clip 945 to position spout 1010 in a predetermined
position.
[0137] In other embodiments, housing 905 includes a single door
configured to enclose the product portion while in a closed
configuration and allow access to the product portion while in an
open configuration. A locking device in such an embodiment would be
configured to lock the door to the product portion.
[0138] In other embodiments of the front of store housing, the
housing is configured to be modular. In an example, the housing is
configured to include two dispensing systems and also includes
operable connections to attach additional housings to expand the
number of dispensing systems available for use. A modular system is
desirable for offering multiple condiments to the consumer at any
one time. At times, for example for special promotions, when a
specific or new condiment is offered for use, it would be simple to
attach a separate housing to the already existing housing. Then,
when the promotion is done, simply remove the housing. In the
modular embodiments, one side of the housing can have attachment
pins connected to the surface. On the other side of the housing,
the housing includes openings for receiving attachment pins. Then,
in use, the pins of one unit are inserted into the openings of
another to secure one unit to another. In other embodiments, the
modular connectors (pins and openings) may be used to attach
dispenser accessories such as, for example, condiment cup
dispensers, cubby holes for salt and pepper packets, a straw
dispenser, and the like.
[0139] FIG. 10 illustrates one embodiment of spout housing 1005
mated with support clip 945 of FIG. 9 in accordance with one
embodiment of the invention.
[0140] FIG. 11 illustrates one embodiment of support clip 945 in
accordance with one embodiment of the invention.
[0141] FIG. 12 illustrates one embodiment of spout housing 1005 in
accordance with one aspect of the invention. Spout housing 1005
comprises two wings 1220 and 1230, hingedly attached at hinge 1250
for rotation between an open configuration (pictured in FIG. 12)
and a closed configuration (pictured in FIG. 10). Spout housing
1005 may further include spout locator 1240 configured to accept
spout 1010 (FIG. 10) and at least a portion of bag 90 (FIG.
10).
[0142] Spout 1010 is configured so that only spout 1010 is in
contact with the contents of bag 90 in one embodiment. Thus, in
such embodiments, bag 90 and spout 1010 are configured so that the
interior of bag 90 is in fluidic communication with an interior of
spout 1010.
[0143] FIGS. 23 to 31 illustrate another embodiment of a spout
assembly 2300 configured to receive the product from spout
receiving portion 93 of bag 90 and convey the product to a desired
location. Spout assembly 2300 is removably attached to frame 20 of
system 10. In one embodiment, the spout assembly 2300 includes
housing 2310 and delivery tube 2330. Delivery tube 2330 includes an
angle to dispense the product to a location other than directly
below the spout receiving portion. In one embodiment, the delivery
tube 2330 is configured in an approximate "s" shape. The delivery
tube also serves to give the customer a visible dispensing location
for determining where the dispensed product will exit the
dispenser. In another embodiment, delivery tube 2330 comprises a
straight tubular member configured to dispense product directly
below the spout receiving portion.
[0144] Housing 2310 comprises a hinged housing including a first
portion 2312 and a second portion 2314 operably attached to first
portion 2312. The hinge attachment comprises at least one U-shaped
connector 2350 attached to first portion 2312 and at least one pin
2352 for receiving U-shaped connector 2350 operably connected to
second portion 2314.
[0145] Housing 2310 also includes a lock assembly 2340 for locking
first portion 2312 to second portion 2314. In a locked
configuration, shown in FIG. 23, the spout receiving portion of bag
90 is captured between an inside surface 2316 of first portion 2312
and an inside surface 2318 of second portion 2314 of housing 2310.
Lock assembly 2340 includes at least one tab portion 2342 operably
attached to second portion 2314 and at least one opening 2344
defined in first portion 2312, the opening 2344 for receiving tab
portion 2342. The inside surface 2316 of first portion 2312 further
includes a ridge 2346 adjacent to lock opening 2344. The inside
surface 2318 of second portion 2314 includes a groove 2348 for
receiving ridge 2346. In the locked configuration, spout receiving
portion 93 of bag 90 is clamped between ridge 2346 and groove 2348
thereby providing a seal to minimize leaking of product from the
bag.
[0146] In one embodiment, lock assembly 2340 provides a locked
position and a secured position for housing 2310. The locked
position provides a sealed arrangement for dispensing product. The
secured position provides ease of use for the user when removing
and replacing the bag of product. FIG. 24 illustrates the housing
2310 in the secured position. In this position, the housing is open
but the first and second portions are not completely separated for
removing and replacing the bag of product. In the secured position,
opening 2344 is retained by an outer ridge 2354 of tab 2342.
[0147] The s-shaped delivery tube 2330 is positioned between first
portion 2312 and second portion 2314 within tube receiving channel
2360. Channel 2360 is formed from complementary grooves fashioned
in the inside surfaces of first portion 2312 and second portion
2314.
[0148] First portion 2312 of housing 2310 also includes locator pin
openings 2366 for securing spout assembly 2300 to system 10. Pin
openings 2366 are sized to receive locator pins operably connected
to frame 20 (see FIG. 1).
[0149] In operation, a first end 2334 of delivery tube 2330 is
inserted into groove 2362 and a second end 2332 is inserted into
spout receiving portion 93 of a bag of product. Once the tube is
inserted, the inside surfaces of the first portion and the second
portion are drawn together and locked in place to secure the
delivery tube within the spout receiving portion of the bag. In one
embodiment, delivery tube 2330 is locked in place in one of the
grooves formed in either first portion 2312 or second portion 2314.
In one embodiment delivery tube 2330 is locked into groove portion
2362.
[0150] In one embodiment, delivery tube 2330 includes a one-way
stop valve 2338. One-way stop valve 2338 is located within tube
2330 adjacent the dispensing first end 2334. The one-way stop valve
2338 opens to allow passage of condiment when pressure is applied
to the flexible bag during the dispensing process. The one-way stop
valve closes when the pressure is removed in order to prevent
condiment from leaking out of the first end between condiment
dispensing.
[0151] FIG. 13 illustrates an alternative embodiment of a valve
assembly, in accordance with another aspect of the invention. Valve
assembly 50, as illustrated in, e.g., FIG. 2A, comprises a t-shaped
groove to mate with a support rail. FIG. 13 illustrates valve
assembly 1349 comprising a straight walled groove 1360, such that
valve assembly 1349 is configured to not move laterally when in
position--placing or removing valve assembly 1349 into a supported
position along a support rail requires angling valve assembly (and
assembly 10) to allow clearance of the sidewall.
[0152] In another embodiment, valve assembly 50 includes a pump to
meter the amount of product dispensed from the bag. In one
embodiment the pump is a peristaltic pump. In one embodiment, the
peristaltic pump meters out 2 grams of ketchup. In another
embodiment, the peristaltic pump meters out an amount of product
calibrated to fill a souffle cup. The peristaltic pump may be
powered, or rely on gravitational forces for measurements. In other
embodiments, the assembly 10 includes a peristaltic pump that is
not a part of valve assembly 50. In another embodiment, the pump is
a peristaltic pump.
[0153] A modified souffle cup receives the output of the bag in one
embodiment. Such a souffle cup comprises a cup that has a
substantially circular bowl shape, with its width greater than its
height. In one embodiment, the modified cup includes an arced
dipping angle created by the base of the cup as it flows into the
walls of the cup. In one embodiment, the modified cup includes a
flanged portion of the wall at its terminus. Such a modified cup
may provide a user with the impression of holding a great deal of
product, while holding a smaller amount than prior art paper
souffle cups known in the art. The cup may comprise polylactic
acid, paper, plastics, or any other material known. The cups 982
may be stored in a container 980 affixed to the side of housing 905
as illustrated in, e.g. FIG. 9. The container for the modified cups
may include a bottom portion to support the cups at their base,
rather than at a flanged upper portion of the cup, wherein the
bottom portion includes a groove configured to allow a user to
remove a single cup at a time by angling the cup for removal. In
addition to the substantially circular bowl shape, a number of
other shape configurations are possible, including square, diamond,
triangular, or other polygonal configurations, each of which is
encompassed by this disclosure. In one embodiment, the shape of the
souffle cup is configured to minimize product waste during use.
[0154] Hinged attachments described herein may comprise any number
of known hinge assemblies. For example, a hinged attachment
includes a pin inserted through the hinged parts, and the hinged
parts rotate about the axis of the pin. In another example, the
hinge is externally affixed to the devices, such that the devices
rotate about the axis of the external hinge. External hinges may be
affixed to the device using known means, such as adhesives, screws,
hook and loop fasteners such as Velcro-brand fasteners, etc. Thus,
the components of hinged attachments may be integral with other
structures.
[0155] Those of ordinary skill in the art will readily recognize
that bag 90 may contain any number of consumer and commercial
products. Bag 90, for example, may contain food products, such as
ketchup, mustard, and other condiments. In another example, bag 90
may contain sanitizers, soap or other cleaning products. In another
example, bag 90 may contain healthcare products. In another
example, bag 90 contains salad dressing or pasta sauces. In another
example, bag 90 contains glue. In another example, bag 90 contains
pancake batter, or an egg batter. In another example, bag 90
contains chemicals or other industrial products.
[0156] Those of ordinary skill in the art will readily recognize
that the parts of system 10 other than bag 90 may comprise any
appropriate material or materials. Thus, the structural components,
such as frame 20, top clip 30, roller frame 40, valve assembly 50,
housing 5 and dispenser 15 may be plastic, PVC plastic, metal,
steel or any other appropriate material or combination of
materials. In one embodiment, the gripping connections between the
front of an assembly or clip may include steel portions mating with
plastic portions of the back of the assembly or clip. In another
embodiment, track 26 comprises stainless steel or similar
material.
[0157] One embodiment of the invention includes the use of more
than one system 10 in a modular system. Using a plurality of
systems 10 in a modular system allows the operator to provide a
plurality of condiments, for example, in a single location. Modular
systems may provide a smaller footprint, conserving space
utilization.
[0158] FIG. 19 illustrates one embodiment of a method 1900 for
dispensing particulate condiment in accordance with one aspect of
the invention.
[0159] Method 1900 begins at step 1910. At step 1920, a pump
cylinder is filled with particulate condiment to a primed volume.
In one embodiment, the pump cylinder is implemented as cylinder
1550 described above for FIGS. 14, 15, 17 and 18. In another
embodiment, the pump cylinder is a portion of a dual knife blade
pump assembly as described above.
[0160] After priming the pump, method 1900 cuts substantially
through the particulates within the particulate condiment to
provide a cylinder cap at step 1930. Cutting the particulates
removes those particulates that may interfere with the sealing of
the components. In one embodiment, cutting the particulates is
implemented by engaging first knife blade 1530 and first knife
blade receptacle 1520. In one embodiment, the cylinder cap is
implemented with piston 1540.
[0161] Having cut the particulates, method 1900 dispenses the
particulate condiment from the filled pump cylinder in step 1940.
In one embodiment, the particulate condiment is dispensed through
removable cap 1530 by opening valve 1570.
[0162] Having dispensed the particulate condiment, method 1900 cuts
substantially through the particulates within the particulate
condiment to provide a cylinder floor in step 1950. In one
embodiment, cutting the particulates comprises engaging second
knife blade 1580 with second knife blade receptacle 1590. In one
embodiment, closing the valve 1570 creates the cylinder floor.
Cutting the particulates removes those particulates that may
interfere with the sealing of the components.
[0163] FIG. 20 illustrates one embodiment of a method 2000 for
dispensing particulate condiment in accordance with one aspect of
the invention.
[0164] Method 2000 begins at 2010. A wing portion of a dispenser is
engaged with a wing receptacle, i.e. 1667, formed in a dispenser
support, i.e. 1686 at step 2020. In one embodiment, the dispenser
is implemented as dispenser 1400. In another embodiment, the wing
portion is implemented as wing 1423.
[0165] Having engaged the dispenser with a wing receptacle, the
dispenser is filled with particulate condiment at step 2030, and
the dispenser is disengaged from the wing portion at step 2040.
[0166] After disengaging the dispenser, the particulate condiment
is dispensed in a predetermined condiment volume while cutting
particulates in the particulate condiment in step 2050. In one
embodiment, predetermined condiment volume is dispensed in an
amount determined by a matched set of stop blocks and removable
caps. In another embodiment, the predetermined condiment volume is
determined by a volume of a pump cylinder, such as cylinder 1550.
In another embodiment, cutting particulates is performed by
engaging first knife edge, i.e. 1530, with first knife blade
receptacle, i.e. 1520, and by engaging second knife edge, i.e.
1580, with second knife blade receptacle, i.e. 1590.
[0167] FIG. 21 illustrates one embodiment of a system 2100 for
dispensing condiments. System 2100 includes dispenser 1400
supported in housing 5 by wing receptacle 1686, and disposed in a
dispensing position adjacent roller assembly 10 supporting bag 90.
As shown in FIG. 21, a dispenser system includes a roller assembly
supporting a flexible bag, and a dispenser positioned below the
flexible bag and positioned to be filled by the flexible bag, the
dispenser including a pump assembly having first and second blades
to compress particulates within a particulate condiment.
[0168] In another embodiment, a dispenser is included in a system
for dispensing particulate condiment. The system includes a
dispenser including a wing portion. In one embodiment, the
dispenser is implemented as dispenser 1400, and wing portion is
implemented as wing 1423. The system further includes a pump
assembly having first and second blades to cut particulates within
the particulate condiment. In one embodiment, the pump assembly is
implemented as pump 1440, and the first and second blades are
implemented as first knife blade 1530 and second knife blade
1580.
[0169] As used herein, the term "cutting" includes compressing,
severing, squeezing or similar actions that may or may not result
in division of an object.
[0170] While the embodiments of the invention disclosed herein are
presently considered to be preferred, various changes and
modifications can be made without departing from the spirit and
scope of the invention. The scope of the invention is indicated in
the appended claims, and all changes that come within the meaning
and range of equivalents are intended to be embraced therein.
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