U.S. patent application number 11/317209 was filed with the patent office on 2007-06-28 for automatic countertop access port and method of use thereof.
Invention is credited to Greg Nance.
Application Number | 20070145057 11/317209 |
Document ID | / |
Family ID | 38192399 |
Filed Date | 2007-06-28 |
United States Patent
Application |
20070145057 |
Kind Code |
A1 |
Nance; Greg |
June 28, 2007 |
Automatic countertop access port and method of use thereof
Abstract
An automatic countertop trash access port with automatic cover,
wherein the access port comprises a sensor that recognizes when
waste is approaching the cover, and wherein the sensor activates a
solenoid to open the cover to permit waste to drop through the
access port into a trash container therebelow, thereby avoiding the
need for a user to make contact with the trash access port. Prior
to passing into the trash container, trash may be shredded,
compacted and/or ground via a disposal mechanism. A locking
mechanism to retain the cover open or closed may also be
provided.
Inventors: |
Nance; Greg; (Gainesville,
GA) |
Correspondence
Address: |
WILLIAMSON INTELLECTUAL PROPERTY LAW, LLC
1870 THE EXCHANGE, SUITE 100
ATLANTA
GA
30339
US
|
Family ID: |
38192399 |
Appl. No.: |
11/317209 |
Filed: |
December 23, 2005 |
Current U.S.
Class: |
220/495.06 |
Current CPC
Class: |
B65F 1/1638 20130101;
B65F 1/1431 20130101 |
Class at
Publication: |
220/495.06 |
International
Class: |
B65D 25/14 20060101
B65D025/14 |
Claims
1. An automatic countertop access port comprising: a
pivotally-operating access cover plate; a pivotally-mounted linear
solenoid.
2. The automatic countertop access port of claim 1, further
comprising a trash proximity sensor.
3. The automatic countertop access port of claim 1, further
comprising a trash level sensor.
4. The automatic countertop access port of claim 1, further
comprising a locking mechanism.
5. The automatic countertop access port of claim 1, further
comprising a means for dampening motion.
6. The automatic countertop access port of claim 1, further
comprising a means for limiting opening of said cover plate.
7. The automatic countertop access port of claim 1, wherein said
cover plate further comprises a means for providing an air-tight
seal.
8. The automatic countertop access port of claim 7, further
comprising a beveled edge of said cover plate and a ring having a
second beveled edge, wherein said beveled edge of said cover plate
sealedly engages said second beveled edge.
9. The automatic countertop access port of claim 1, further
comprising a device selected from the group consisting of
disposals, shredders, compactors, and combinations thereof.
10. The automatic countertop access port of claim 1, further
comprising a means for urging a cover plate to close.
11. The automatic countertop access port of claim 1, wherein said
linear solenoid is adapted to provide maximum pulling force to said
cover plate.
12. The automatic countertop access port of claim 1, further
comprising a means for signaling a full capacity status for a trash
container disposed under said automatic countertop access port.
13. A method of depositing trash in a trash container, said method
comprising the steps of: a. sensing objects approaching an access
door; and b. opening said access door to permit said objects to
pass through an aperture.
14. The method of claim 13, further comprising the step of: opening
said access door prior to arrival of trash at said access door.
15. The method of claim 13, further comprising the step of:
pivoting a solenoid to maintain optimum force to open said access
door.
16. An automatic countertop access port comprising: a
pivotally-operating access cover plate; a pivotally-mounted linear
solenoid; and bevel sealing edges.
17. The automatic countertop access port of claim 16, further
comprising a locking mechanism.
18. The automatic countertop access port of claim 16, further
comprising a means for sensing trash in the proximity of said
pivotally-operating access cover plate.
19. The automatic countertop access port of claim 18, further
comprising a means for disposing of said trash.
20. The automatic countertop access port of claim 19, wherein said
means for disposing is selected from the group consisting of
shredders, disposals, compactors, and combinations thereof.
Description
TECHNICAL FIELD
[0001] The present invention relates generally to counter access to
waste containers, and more specifically to an automatic countertop
access port, wherein the automatic countertop access port senses
waste approaching a cover plate thereof and automatically activates
to dispose of the waste to a container below the counter.
BACKGROUND OF THE INVENTION
[0002] Home kitchens typically have a trash receptacle located
therein. Access to such receptacles is often required to be
immediate and must be accomplished without full use of on or both
hands. Accordingly, such receptacles are typically in the open for
unobstructed access. However, trash containers detract from the
aesthetic appearance of the kitchen and it is usually desired that
such receptacles be placed out of view, if possible. Unfortunately,
placing such a trash receptacle out of view typically obstructs
access to the receptacle, resulting in difficulty of placing trash
therein.
[0003] In addition to home kitchens, fast food restaurants have
similar, but more complex, problems with disposal of trash,
including food. Fast food restaurants typically serve their
customers by placing food and/or beverages on a tray. Napkins,
residual food, disposable utensils and food packaging remain on the
tray and require disposal. Typically, a patron who has finished
eating takes their tray to a trash receptacle and pushes the door
of the trash receptacle inward, inserting portions of the tray into
the trash receptacle opening. Empty trays are subsequently
deposited place on the top of, or near, the trash receptacle for
recovery by restaurant staff.
[0004] Some fast food restaurants utilize a swinging side access
door to a trash receptacle, while others utilize such a door
disposed in the top of the receptacle. A trash receptacle, whether
in a home kitchen or fast food restaurant, typically comprises a
removable container with a trash bag disposed therewithin.
[0005] Unfortunately, fast food restaurant patrons must typically
utilize their hand to push open the swinging door of the trash
receptacle, and, at the same time, the patron must utilize their
other hand to hold the tray and insert the tray into the trash
receptacle opening, wherein trash, including food, remaining on the
tray is deposited into a trash container below the receptacle
opening.
[0006] Additionally, residual food on the trays often contacts the
door of the trash receptacle, resulting in an unsanitary condition,
and it is undesirable for a patron to touch such door when
disposing of food. Occasionally, a patron may even drop a tray into
the trash receptacle, resulting in economic loss to the
restaurant.
[0007] Further, some patrons may find it difficult to carry out the
aforementioned actions to simultaneously open the trash receptacle
door and clear trash from their tray. Young children and
handicapped or disabled patrons may find it difficult to dispose of
trash on their tray into such a conventional trash receptacle.
Moreover, for some disabled patrons, it may be impossible to
operate a typical trash receptacle. Some trash may easily fall to
the ground or remain on the tray.
[0008] Various attempts have unsuccessfully been made to overcome
the aforementioned disadvantages. One such invention comprises an
auxiliary structure enclosure for a receptacle or receptacles for
holding recyclable waste that can be attached to a building. While
the enclosure conceals a receptacle or receptacles, it is external
to a building, thus requiring additional space.
[0009] Other attempts to overcome the problems associated with
trash disposal comprise a pivotally-mounted plate/lid to permit a
horizontal disposition above a top inlet opening of a trash
receptacle. To open, downward manual force must be applied to the
swinging plate, causing the plate to swing downward to open the
inlet opening of the trash receptacle. A container is positioned
under the plate/opening for receiving trash. Through counterbalance
weighting or springs, the plate swings back to its normal
horizontal position once pressure is relieved, thereby closing the
receptacle opening. Unfortunately, such a device often permits the
door to contact trash thereinside and further accumulates trash on
surfaces of the door, wherein the door still requires touching by a
patron/user causing sanitary concerns.
[0010] Therefore, it is readily apparent that there is a need for
an automatic countertop access port with an automatic cover that
maintains a trash container out of sight, while providing easy
access to the trash container via the cover that does not require
touching and application of force by a patron/user, wherein the
cover opens and closes automatically to permit trash to pass
therethrough to a container therebelow without contamination of the
cover.
BRIEF SUMMARY OF THE INVENTION
[0011] Briefly described, in a preferred embodiment, the present
invention overcomes the above-mentioned disadvantages and meets the
recognized need for such a device by providing a non-contact
automatic countertop access port and cover comprising a proximity
sensor that recognizes when waste is approaching an access port
cover, wherein the sensor activates a solenoid to open the cover
plate to permit waste to drop through the access port into a trash
container therebelow. Prior to passing into the trash container,
trash may selectively be shredded, compacted and/or ground via a
disposal mechanism. The automatic countertop access port could
selectively be installed in any horizontal or vertical surface, or
in surfaces between horizontal and vertical.
[0012] According to its major aspects and broadly stated, the
present invention in its preferred form is an automatic countertop
access port and cover that opens when trash is sensed to be
approaching the cover, thereby allowing the trash to fall through
the access port to the container below via opening of the cover by
a solenoid that maintains optimum force by pivoting as it opens the
cover. Accordingly, the present invention prevents contamination of
surfaces from contact with trash. Furthermore, the cover plate
seals to a ring surface via bevel edges, providing a near air-tight
seal, thereby reducing and/or eliminating odors. It will be
recognized by those skilled in the art that automatic countertop
access port could be utilized for other applications wherein a door
is desired to be opened for passage of objects or materials other
than trash, such as for entry to a storage container for sports
equipment, vapor or light transmission, or the like.
[0013] More specifically, the present invention is an automatic
countertop access port preferably having a circular or oval ring
and a cover plate, wherein the cover plate is activated via a
linear solenoid and returned via a spring. A limit switch restricts
over-opening of the cover plate and also starts a timer to set a
delay period. Following a pre-selected time delay, power to
solenoid is removed, and the potential energy stored in the
stretched spring pulls the cover plate back to the closed position.
Bumpers of metal, plastic or rubber dampen motion of the cover
plate at the extremes of travel, wherein the bumpers may
selectively be adjustable to facilitate alignment of the cover
plate and ring.
[0014] The ring is preferably flush mounted to a counter, wherein
bevelled edges on the cover plate and ring make contact when the
cover plate is closed, to form an air-tight or near air-tight seal.
Additionally, a rubber-boot-covered locking mechanism can also be
included to permit locking the cover plate open, such as might be
required when servicing the access port or for use where it is
desired to keep the access port open continuously, such as when
peeling potatoes. The locking mechanism includes a sprung pin that
engages a blindhole in a lever that connects the cover plate to the
solenoid.
[0015] A proximity sensor is located on the ring, wherein the
proximity sensor detects motion and/or proximity of trash
approaching the automatic countertop access port. The sensor
activates a linear solenoid, opening the cover plate before the
arrival of trash at the automatic countertop access port, thereby
permitting trash to fall through the aperture into a trash
container therebelow. The solenoid comprises a body with a piston,
and the body has a base end opposite the piston end, wherein the
solenoid pivots at both the piston end and the base end of the
solenoid to maintain the force from the solenoid piston directed
from the cover, thereby applying maximum pulling force to the
cover.
[0016] A level sensor detects when the container is full and
provides indication of such status via an indicator. The indicator
typically includes one or more lights or an audible sound or sounds
of different pitch or duration, and selectively provides indication
of different levels of trash within the container, as sensed by the
level sensor.
[0017] The proximity and level sensors could be any suitable
sensing device, such as, for exemplary purposes only, infrared,
radio frequency, ultrasonic, light beam, imaging, or like
sensors.
[0018] Additionally, a shedder, compactor and/or disposal may be
provided below the aperture to operate on the trash prior to its
passage into the container. Once full, the container may be removed
from below the counter via an access door.
[0019] Thus, the present invention provides automatic opening of
the cover plate to avoid the need for human contact, thereby
enhancing sanitary use of trash containers.
[0020] Accordingly, a feature and advantage of the present
invention is its ability to sense the proximity of approaching
trash and to dispose of same.
[0021] Another feature and advantage of the present invention is
its ability to automatically open to receive trash without
contamination of the device cover from contact with the trash.
[0022] Still another feature and advantage of the present invention
is its ability to permit trash to be shredded, ground via a
disposal and/or compacted.
[0023] Yet another feature and advantage of the present invention
is its ability to be mechanically locked open or closed.
[0024] Yet still another feature and advantage of the present
invention is its ability to sense the level of trash in a
container.
[0025] A further feature and advantage of the present invention is
its ability to provide a tightly sealed surface.
[0026] These and other features and advantages of the present
invention will become more apparent to one skilled in the art from
the following description and claims when read in light of the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The present invention will be better understood by reading
the Detailed Description of the Preferred and Selected Alternate
Embodiments with reference to the accompanying drawing figures, in
which like reference numerals denote similar structure and refer to
like elements throughout, and in which:
[0028] FIG. 1 is a perspective view of an automatic countertop
access port according to a preferred embodiment of the present
invention, shown installed in a countertop;
[0029] FIG. 2A is a perspective view of an automatic countertop
access port according to a preferred embodiment of the present
invention, shown closed;
[0030] FIG. 2B is a perspective view of an automatic countertop
access port according to a preferred embodiment of the present
invention, shown partially opened;
[0031] FIG. 2C is a perspective view of an automatic countertop
access port according to a preferred embodiment of the present
invention, shown fully opened;
[0032] FIG. 3A is a detail side view of an automatic countertop
access port according to preferred and alternate embodiments of the
present invention; and
[0033] FIG. 3B is a detail side view of a solenoid locking
component of an automatic countertop access port according to an
alternate embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED AND SELECTED ALTERNATIVE
EMBODIMENTS
[0034] In describing the preferred and selected alternate
embodiments of the present invention, as illustrated in FIGS. 1-3B,
specific terminology is employed for the sake of clarity. The
invention, however, is not intended to be limited to the specific
terminology so selected, and it is to be understood that each
specific element includes all technical equivalents that operate in
a similar manner to accomplish similar functions.
[0035] Referring now to FIGS. 1-3A, the present invention in a
preferred embodiment is an automatic countertop access port 10
preferably comprising circular or oval ring 20, cover plate 30,
lever 40, mount 50, linear solenoid 60, housing 70, spring 100 and
limit switch 130, wherein linear solenoid 60 preferably comprises
body 65 and piston 80. It will be recognized by those skilled in
the art that ring 20 and cover plate 30 could comprise alternate
shapes, including, without limitation, square, rectangular,
etc.
[0036] When closed, cover plate 30 is preferably disposed within
oval ring 20, wherein cover plate 30 and oval ring 20 preferably
form an air-tight or near air-tight seal. Lever 40 preferably
comprises upper spring bearing 120 and upper pivot 90, wherein
upper pivot 90 preferably comprises a bearing and lever 40 is
preferably pivotally secured via upper pivot 90 to piston 80 of
solenoid 60, and wherein lever 40 is preferably fixably secured to
cover plate 30. Mount 50 is preferably fixably secured to oval ring
20, wherein mount 50 preferably carries therewithin solenoid 60,
and wherein solenoid 60 is preferably disposed within housing 70.
Body 65 of solenoid 60 is preferably pivotally secured to mount 40
via lower pivot 110, wherein lower pivot 110 preferably comprises a
roller bearing. Lever 40 could alternately be additionally
pivotally-constrained within mount 50 via bearing 92.
[0037] Housing 70 preferably comprises legs 75, feet 76 and lower
pivot 110, wherein feet 76 preferably comprise lower spring pivot
122. Spring 100 is preferably secured to upper spring pivot 120 and
lower spring pivot 122, wherein spring 100 preferably provides
return force for closure of cover plate 30. Spring pivots 120, 122
preferably comprise a bearing or bushing to reduce frictional
forces to spring 100, and to facilitate closing motion of cover
plate 30. It will be recognized by those skilled in the art that
cover plate 30 could comprise a counterweight for closing force, in
lieu of spring 100.
[0038] Limit switch 130 is preferably disposed on mount 50, wherein
limit switch 130 is preferably contacted by cover plate 30 when
cover plate 30 is opened. Upon contact by cover plate 30, limit
switch 130 preferably begins a time delay period to disconnect
power to solenoid 60, and further prevents damage to cover plate 30
and lever 40.
[0039] Ring 20 is preferably flush mounted to counter 200 and
preferably comprises aperture 140, flange 150 and rim 160. Trash
sensor 250 is preferably a proximity sensor and is disposed on ring
20, wherein trash sensor 250 preferably detects motion or proximity
of trash T approaching and preferably activates linear solenoid 60
to open cover plate 30, thereby preferably pulling cover plate 30
downward to permit trash T to fall through aperture 140 into
container 220 therebelow (best shown in FIG. 1). Cover plate 30 is
preferably drawn downward to open via linear solenoid 60, wherein
solenoid 60 preferably pivots to maintain optimum force throughout
the opening of cover plate 30.
[0040] Level sensor 260 preferably comprises indicator 270, wherein
level sensor 260 is preferably directionally disposed toward
container 220 and preferably detects when container 220 is full,
thereby preferably providing indication of such status via
indicator 270. Indicator 270 typically preferably comprises one or
more lights 275, wherein lights 275 could selectively provide
indication of different levels of trash T within container 220
sensed by level sensor 260. It will be recognized by those skilled
in the art that other indicators, such as, for exemplary purposes
only, audible sounds, could be utilized in lieu of lights 275.
Sensors 250, 260 preferably comprise any suitable sensing device,
such as, for exemplary purposes only, infrared, radio frequency,
ultrasonic, light beam, imaging, or like sensors.
[0041] Bumpers 400, 410 are preferably disposed on ring 20 and
preferably dampen motion of cover plate 30 via contact with lever
40 at the extremes of travel thereof. Bumpers 400, 410 preferably
comprise sloped surfaces 420, 430, respectively. Bumpers 400, 410
preferably comprise metal or, alternately could comprise rubber.
Sloped surface 420 preferably makes contact with lever 40 when
cover plate 30 is fully closed, wherein sloped surface 420
preferably comprises rubber coating 421. Sloped surface 430
preferably makes contact with lever 40 when cover plate 30 is fully
open, wherein sloped surface 430 preferably comprises rubber
coating 431.
[0042] Referring now more particularly to FIG. 3A, rim 20
preferably comprises bevel 25 and cover plate 30 preferably
comprises bevel 35. In the fully closed state shown in FIG. 3,
bevel 35 of cover plate 30 is preferably disposed proximate bevel
25 of ring 20, thereby forming a near air-tight seal. Bevels 25, 35
preferably comprise rubber coating 26, 36 to provide an efficient
seal and dampen sound.
[0043] To install, automatic countertop access port 10 is
preferably disposed within counter 200, wherein ring 20 rests on
and within opening 240 in counter 200. Automatic countertop access
port 10 preferably provides aperture 140 for passage of trash T
through counter 200 into container 220 therebelow. A shedder,
compactor and/or disposal 210 may selectively be provided below
aperture 140 to perform desired actions on trash T prior to its
passage into container 220. Container 220 may be removed from below
counter 200 via access door 230.
[0044] In use, trash T is preferably sent to the vicinity of cover
plate 30, wherein sensor 250 preferably detects the presence of
trash T and activates solenoid 60, thereby preferably opening cover
plate 30 and permitting trash T to pass through aperture 140. After
a pre-selected time delay, power to solenoid 60 is preferably
removed, and potential energy stored in stretched spring 100
preferably pulls cover plate 30 back to the closed position shown
in FIG. 2A. It will be recognized by those skilled in the art that
cover plate 30 could alternately be opened by remote control.
[0045] Referring now more particularly to FIG. 3A, in an alternate
embodiment of the present invention, automatic countertop access
port 10 could comprise locking mechanism 300, wherein locking
mechanism 300 comprises threaded body 310, pin 320, spring 330,
flange 350 and rubber boot 360. Bumpers 400, 410 comprise ridges
440 and are disposed proximate threaded body 310 of locking
mechanism 300. Pin 320 is slidably disposed within threaded body
310, wherein spring 330 is disposed over pin 320. Spring 330 is
retained via flange 350 and ridges 440, wherein spring 330 tends to
urge pin 320 to its original position subsequent to removal of
depressive force. Rubber boot 360 is disposed over pin 320 and
threaded body 310 to prevent moisture incursion to locking
mechanism 300.
[0046] Pin 320 selectively engages blindhole 380 in lever 40,
wherein cover plate 30 is rendered immobile while pin 320 is so
engaged. Interference between pin 320 and blindhole 380 under
tension of spring 100 acting on lever 40 holds pin 320 within
blindhole 380 overcoming the urging force of spring 330. Slightly
tapping on cover plate 30 releases interference and permits pin 320
to retract and withdraw from blindhole 380, thereby permitting
spring 100 to close cover plate 30.
[0047] In a further alternate embodiment of the present invention
shown in FIG. 3B, locking mechanism 300 could comprise second
solenoid 440 secured via holddown 445 and fasteners 446, wherein
solenoid piston 450 replaces pin 320, and wherein solenoid piston
450, upon activation via a switch, engages blindhole 380. In a
further alternate embodiment, second solenoid 440 could drive pin
320, wherein solenoid piston 450 is in communication with pin 320.
Alternately, second solenoid 440 could be mounted below ring 20 and
adapted to engage blindhole 380 via a linkage.
[0048] The foregoing description and drawings comprise illustrative
embodiments of the present invention. Having thus described
exemplary embodiments of the present invention, it should be noted
by those skilled in the art that the within disclosures are
exemplary only, and that various other alternatives, adaptations,
and modifications may be made within the scope of the present
invention. Merely listing or numbering the steps of a method in a
certain order does not constitute any limitation on the order of
the steps of that method. Many modifications and other embodiments
of the invention will come to mind to one skilled in the art to
which this invention pertains having the benefit of the teachings
presented in the foregoing descriptions and the associated
drawings. Although specific terms may be employed herein, they are
used in a generic and descriptive sense only and not for purposes
of limitation. Accordingly, the present invention is not limited to
the specific embodiments illustrated herein, but is limited only by
the following claims.
* * * * *