U.S. patent application number 11/864416 was filed with the patent office on 2008-10-02 for liquid reservoir, and kit, spray assembly and method using same.
This patent application is currently assigned to Trade Associates, Inc.. Invention is credited to Clifford W. Turnbull, William N. Turnbull.
Application Number | 20080237370 11/864416 |
Document ID | / |
Family ID | 37968656 |
Filed Date | 2008-10-02 |
United States Patent
Application |
20080237370 |
Kind Code |
A1 |
Turnbull; William N. ; et
al. |
October 2, 2008 |
LIQUID RESERVOIR, AND KIT, SPRAY ASSEMBLY AND METHOD USING SAME
Abstract
Disposable reservoirs for use with spray apparatuses,
reservoir-adapter kits, spray assemblies employing such reservoirs,
and methods of use are disclosed.
Inventors: |
Turnbull; William N.;
(Seattle, WA) ; Turnbull; Clifford W.; (Kent,
WA) |
Correspondence
Address: |
DORSEY & WHITNEY LLP;INTELLECTUAL PROPERTY DEPARTMENT
SUITE 3400, 1420 FIFTH AVENUE
SEATTLE
WA
98101
US
|
Assignee: |
Trade Associates, Inc.
Kent
WA
|
Family ID: |
37968656 |
Appl. No.: |
11/864416 |
Filed: |
September 28, 2007 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11261936 |
Oct 28, 2005 |
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11864416 |
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Current U.S.
Class: |
239/337 ;
220/796; 239/1; 239/302; 285/390 |
Current CPC
Class: |
Y10S 239/14 20130101;
B05B 7/2478 20130101; B05B 7/2408 20130101; A62C 13/003 20130101;
A62C 13/62 20130101 |
Class at
Publication: |
239/337 ;
285/390; 239/302; 220/796; 239/1 |
International
Class: |
B05B 7/32 20060101
B05B007/32; F16L 15/00 20060101 F16L015/00; B05B 7/24 20060101
B05B007/24; B65D 43/08 20060101 B65D043/08; B05B 17/04 20060101
B05B017/04 |
Claims
1. A reservoir-adapter kit for use with a spray apparatus,
comprising: at least one adapter having a passageway therethrough,
a reservoir coupling portion, and a spray apparatus coupling
portion configured to be threadly coupled to the spray apparatus;
and at least one reservoir comprising: a body including a first
portion having an outlet, a second portion having an inlet, and a
passageway extending between the inlet and the outlet, the first
portion having a threaded portion configured to be threadly coupled
to the reservoir coupling portion of the at least one adapter so
that the inlet of the at least one adapter is in fluid
communication with the outlet of the body; and a lid configured to
be removeably attached to the second portion to cover the
inlet.
2. (canceled)
3. The reservoir-adapter kit of claim 1 wherein the threaded
portion of the at least one reservoir comprises internal threads
disposed within the passageway of the body.
4. The reservoir-adapter kit of claim 1 wherein the threaded
portion of the at least one reservoir comprises external threads
and internal threads disposed within the passageway of the
body.
5. The reservoir-adapter kit of claim 1 wherein the threaded
portion of the body comprises external threads integrally formed
with the body.
6. The reservoir-adapter kit of claim 1 wherein the threaded
portion of the body comprises internal threads disposed within the
passageway of the body and integrally formed with the body.
7. The reservoir-adapter kit of claim 1 wherein the threaded
portion of the body comprises external threads and internal threads
disposed within the passageway of the body, the external and
internal threads being integrally formed with the body.
8. The reservoir-adapter kit of claim 1 wherein the body comprises
a main section that includes the inlet and a ring extending
peripherally about the main section proximate the inlet.
9. The reservoir-adapter kit of claim 1 wherein the reservoir
coupling portion of the at least one adapter comprises one of
internal threads disposed within the passageway of the at least one
adapter and external threads.
10. The reservoir-adapter kit of claim 1 wherein the spray
apparatus coupling portion of the at least one adapter comprises
one of internal threads disposed within the passageway of the at
least one adapter and external threads.
11. The reservoir-adapter kit of claim 1 wherein the body and the
lid comprise a polymeric material.
12. A spray assembly, comprising: a reservoir comprising: a body
including a first portion having an outlet and a threaded portion,
a second portion having an inlet, and a passageway extending
between the inlet and the outlet; and a lid removably attached to
the second portion to cover the inlet; and a spray apparatus
operable to spray fluid disposed within the reservoir, the spray
apparatus including a threaded coupling member coupled to the
reservoir so that the outlet of the reservoir fluidly communicates
with the spray apparatus.
13-18. (canceled)
19. The spray assembly of claim 12 wherein: the body comprises a
main section that includes the inlet and a ring extending
peripherally about the main section proximate the inlet; and the
lid is removably attached to the main section using an interference
fit between the lid and the ring.
20. The spray assembly of claim 12, further comprising: an adapter
having a passageway therethrough, a reservoir coupling portion, and
a spray apparatus coupling portion, wherein the spray apparatus
coupling portion is threadly coupled to the threaded coupling
member of the spray apparatus and the reservoir coupling portion is
threadly coupled to the threaded portion of the reservoir.
21. The spray assembly of claim 20 wherein the reservoir coupling
portion of the adapter comprises one of internal threads disposed
within the passageway of adapter and external threads.
22. The spray assembly of claim 20 wherein the spray apparatus
coupling portion of the adapter comprises one of internal threads
disposed within the passageway of the adapter that are threadly
coupled to the threaded coupling member of the spray apparatus and
external threads that are threadly coupled to the threaded coupling
member of the spray apparatus.
23. The spray assembly of claim 12 wherein the reservoir comprises
a polymeric material.
24. The spray assembly of claim 12 wherein the spray apparatus
comprises a spray gun.
25-29. (canceled)
30. A reservoir for use with a spray apparatus, comprising: a
reservoir comprising: a body including a first portion having an
outlet and a threaded portion configured to be threadly coupled to
a threaded coupling member of the spray apparatus, a second portion
having an inlet, and a passageway extending between the inlet and
the outlet; and a lid removably attachable to the second portion to
cover the inlet.
31-37. (canceled)
38. The reservoir-adapter kit of claim 1 wherein the body of the at
least one reservoir includes a main section having an inner
diameter that continuously decreases away from the inlet.
39. (canceled)
40. The reservoir of claim 30 wherein the body of the reservoir
includes a main section having an inner diameter that continuously
decreases away from the inlet.
41. The reservoir of claim 40, wherein the reservoir is a first
reservoir nested within a stack of a reservoirs.
42. A method of using a spray apparatus, comprising: providing a
plurality of reservoirs nested within one another to form a stack,
each reservoir comprising: a body including a first portion having
an outlet and a threaded portion, a second portion having an inlet,
and a passageway extending between the inlet and the outlet, the
passageway having an inner diameter that continuously decreases
away from the inlet; removing a first reservoir from the stack;
coupling the first reservoir and a threaded coupling portion of a
spray apparatus to one another; filling the first reservoir with
paint; spraying the liquid onto a surface using the spray
apparatus; after spraying, decoupling the first reservoir from the
spray apparatus; and disposing of the first reservoir.
43. The method of claim 42: further comprising coupling an adapter
to the first reservoir; and wherein the act of coupling the first
reservoir and a threaded coupling portion of the spray apparatus to
each other comprises coupling the adapter to the threaded coupling
portion of the spray apparatus.
Description
TECHNICAL FIELD
[0001] This invention relates to disposable reservoirs for holding
liquids, and spray assemblies and methods employing such
reservoirs.
BACKGROUND OF THE INVENTION
[0002] A wide variety of spray apparatuses for applying liquids,
such as paint, varnish, cleaning solvents, or other liquid
materials to a surface are known. Typically, such spray apparatuses
includes a reservoir containing the liquid and a spray apparatus
configured to spray the liquid in the reservoir. The liquid from
the reservoir may be gravity fed or pressure fed to the spray
apparatus by an air bleed from the compressed air line to the
reservoir.
[0003] One conventional reservoir is a rigid pot attached to the
spray gun apparatus with a removable lid. The reservoir is
re-usable and should be thoroughly cleaned when changing the liquid
in the reservoir in order to prevent contaminating the new liquid
that is poured into the reservoir. However, cleaning the reservoir
and, if needed, the spray gun apparatus is time consuming and may
require the use of solvents that are costly and may be a health
hazard to the operator.
[0004] Another conventional reservoir employs a collapsible liner
that is placed within a rigid reservoir. During use, the liquid is
withdrawn from the collapsible liner and, after spraying, the
collapsed liner and lid can be removed and thrown away allowing a
new, clean liner and lid to be used for applying a different
liquid. While the collapsible liner is useful because the rigid
reservoir does not have to be cleaned as often, it can be difficult
to install and remove the liner within the rigid reservoir.
Furthermore, sometimes not all of the paint in the liner is used,
and this un-used paint can be difficult to recover from the
liner.
[0005] Therefore, there is a need in the art for a more user
friendly disposable reservoir. It would also be desirable that such
a reservoir be cheap to fabricate and suitable for use with a
variety of conventional spray gun apparatuses.
SUMMARY OF THE INVENTION
[0006] The invention is directed to disposable reservoirs for use
with spray apparatuses, reservoir-adapter kits, spray assemblies
employing such reservoirs, and methods of use. In one aspect of the
invention, a disposable reservoir for holding a liquid, such as
paint, includes a body with a first portion having an outlet and a
threaded portion configured to be threadly coupled to a spray
apparatus and, a second portion having an inlet. A passageway or
hollow within the body extends between the inlet and the outlet.
The reservoir further includes a lid removably attachable to the
second portion to cover the inlet.
[0007] Another aspect of the invention is directed to a
reservoir-adapter kit for use with a spray apparatus. The kit
includes at least one adapter having a passageway therethrough, a
reservoir coupling portion, and a spray apparatus coupling portion
configured to be threadly coupled to the spray apparatus. The kit
further includes at least one reservoir having a body with a first
portion having an outlet and a second portion having an inlet. A
passageway or hollow within the body extends between the inlet and
the outlet. The first portion of the body also has a threaded
portion configured to be threadly coupled to the reservoir coupling
portion of the at least one adapter so that the inlet of the at
least one adapter is in fluid communication with the outlet of the
body. The kit further includes a lid configured to be removably
attached to the second portion to cover the inlet. The kit may
include a plurality of reservoirs of different sizes and
configurations and a plurality of adapters to enable the reservoirs
to be used with various types of spray apparatuses.
[0008] Another aspect of the invention is directed to a spray
assembly. The spray assembly includes a reservoir having a body
with a first portion having an outlet and a threaded portion, a
second portion having an inlet, and a passageway or hollow within
the body extending between the inlet and the outlet. The reservoir
further includes a lid removably attached to the second portion to
cover the inlet. The spray assembly also includes a spray apparatus
operable to spray fluid disposed within the reservoir. The spray
apparatus includes a threaded coupling member coupled to the
reservoir so that the outlet of the reservoir fluidly communicates
with the spray apparatus.
[0009] Yet another aspect of the invention is directed to a method
of using a spray apparatus. The method includes providing a
reservoir. The reservoir includes a body with a first portion
having an outlet and a threaded portion, a second portion having an
inlet, and a passageway or hollow within the body extending between
the inlet and the outlet. The reservoir and a threaded coupling
portion of the spray apparatus are coupled to each other. The
reservoir is filled with liquid. The liquid is sprayed onto a
surface using the spray apparatus. After spraying, the reservoir
may be de-coupled from the spray apparatus, and the reservoir may
be thrown away.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is an isometric view of a liquid reservoir having
external threads for use with a spray apparatus according to one
embodiment of the invention.
[0011] FIG. 2A is a schematic exploded view of the liquid reservoir
of FIG. 1 that additionally depicts an adapter that threadly
attaches to the reservoir for use with a spray apparatus according
to one embodiment of the invention.
[0012] FIG. 2B is an exploded schematic sectional view of the
reservoir of FIG. 1.
[0013] FIG. 3 is a schematic exploded view of a liquid reservoir
and an associated adapter that threadly attaches to internal
threads of the reservoir for use with a spray apparatus according
to one embodiment of the invention.
[0014] FIG. 4 is a schematic exploded view of a liquid reservoir
that has both internal and external threads for use with a spray
apparatus according to yet another embodiment of the invention.
[0015] FIG. 5 is a schematic view of the liquid reservoir according
to FIG. 3 and an associated spray gun apparatus according to one
embodiment of the invention.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The invention is directed to disposable reservoirs for use
with spray apparatuses, reservoir-adapter kits, spray assemblies
employing such reservoirs, and methods of use. Many specific
details of certain embodiments of the invention are set forth in
the following description and in FIGS. 1 through 5 in order to
provide a thorough understanding of such embodiments. One skilled
in the art, however, will understand that the invention may have
additional embodiments, or that the invention may be practiced
without several of the details described in the following
description.
[0017] FIGS. 1 and 2A-B show a liquid reservoir 10 for containing
paint or another liquid according to one embodiment of the
invention. The reservoir 10 includes a body 8 having a main section
12 and a neck section 14, both of which may have, for example, a
wall thickness of approximately 0.001 inches. The main section 12,
neck section 14, or both may be formed to have a generally
cylindrical shape, however, other shapes may also be used depending
upon the particular manufacturing process employed. As shown in
FIGS. 2A and 2B, an upper portion of the main section 12 may have
an inner diameter A that is larger than an inner diameter B of a
lower portion of the main section 12, and the inner diameter of the
body 8 may continuously taper from the inlet to the neck section 14
to enable easily nesting one body 8 within another. This allows one
body 8 to fit into another body 8 so that the multiple bodies 8 may
be nested together to conserve space during packaging. The main
section 12 also includes an inlet 15 in which paint or another
liquid may be poured through, an outlet 16 in which the paint exits
to a spray apparatus, and a passageway or hollow 13 extending
between the inlet 15 and the outlet 16 defined by the body 8 for
holding a volume of liquid. The neck section 14 includes exterior
threads 18 formed on the exterior thereof that are configured to
threadly engage an adapter 26 and/or the interior threads of a
threaded coupling member of a spray apparatus (not shown). The main
section 12, neck section 14, and exterior threads 18 may be formed
as a unitary structure.
[0018] The reservoir 10 further includes a removable lid 20
configured to tightly snap fit onto the end of the main section 12
proximate the inlet 15. In one embodiment, the lid 20 includes a
recess 21 sized to receive an end of the main section 12. The lid
20 snap fits onto the main section 12 due to an interference fit
with a ring 24 that extends peripherally about the top edge of the
main section 12. The sealing engagement of the lid 20 onto the main
section 12 should be sufficient to prevent paint from leaking out
of the edge of the main section 12 during use. The lid 20 also has
a through hole 22 extending through its thickness. The hole 22
enables the pressure within the passageway or hollow 13 of the body
8 to equalize to ambient pressure and prevent a vacuum from forming
during operation when paint is drawn out of the reservoir 10
through the outlet 16. If desired, to assist the user with
installation and removal of the lid 20, the lid 20 may include a
tab 21 integrally formed therewith.
[0019] With reference to FIG. 2A, one embodiment of a suitable
adapter is shown in FIG. 2 as adapter 26. An adapter may be used,
if the neck section 14 and the threads 18 thereof are not suitably
configured to be coupled to a desired spray apparatus because the
spray apparatus has a thread coupling member that is sized
differently or has exterior threads. In one case, the adaptor may
include a spray apparatus coupling portion having interior threads
that are sized and configured to couple with exterior threads of a
threaded coupling member of a spray apparatus. The adaptor 26
includes an inlet 25, an outlet 27, and a passageway 38 that
extends therebetween for fluidly communicating liquid from the
reservoir 10 to a spray apparatus. The adaptor 26 includes a
reservoir coupling portion 36 having interior threads 28 configured
to threadly engage the exterior threads 18 on the reservoir 10. The
adaptor 26 further includes a spray apparatus coupling portion 31
having internal threads 32 sized and configured for coupling to
exterior threads of a threaded coupling member of a spray
apparatus. In another embodiment, the spray apparatus coupling
portion 31 may have a diameter that is smaller or greater than the
diameter of the neck section 14 and the threads 32 may be external
threads in order to couple the reservoir 10 to a spray apparatus
with a thread coupling member of a different size.
[0020] FIG. 3 shows a reservoir 27 according to another embodiment
of the invention. The reservoir 27 has many of the same components
that are included in the reservoir 10 of FIGS. 1, 2A, and 2B.
Therefore, in the interest of brevity, the components of the
reservoirs 10 and 27 that correspond to each other have been
provided with the same reference numerals, and an explanation of
their structure and function will not be repeated. In the reservoir
27, threads 28 are formed on an interior of the neck section 14
and, thus, are disposed within the passageway 13. Such an
embodiment is compatible with many conventional spray gun
apparatuses, which have a threaded coupling member with external
threads. Thus, the reservoir 27 does need an adapter in order to be
coupled to the threaded coupling device of most conventional spray
gun apparatus.
[0021] However, if it is desirable to use the reservoir 27 with a
spray apparatus having a coupling member with internal threads, an
adapter may be used. One embodiment of a suitable adapter is shown
in FIG. 3 as adapter 40 for coupling the reservoir 27 to a spray
apparatus having a thread coupling member with internal threads.
The adapter 40 includes an inlet 42, an outlet 46, and a passageway
therebetween for fluidly communicating a flow of liquid to the
spray apparatus from the reservoir 27. The adapter 40 includes a
reservoir coupling portion 43 having external threads 44 that are
sized and configured to be inserted into the inlet 16 of the
reservoir 27 and threadly engage the interior threads 28. The
adaptor 40 also includes a spray apparatus coupling portion 45
having external threads 47 configured to connect to internal
threads of a coupling member of a spray apparatus (not shown). In
another embodiment, the spray apparatus coupling portion 45 may
have a diameter that is smaller or greater than the diameter of the
neck section 14 and the threads 47 may be internal threads disposed
within the passageway of the adapter 40 in order to couple the
reservoir 27 to a spray apparatus with a threaded coupling member
of a different size.
[0022] FIG. 4 shows a reservoir 30 according to yet another
embodiment of the invention. The reservoir 30 has many of the same
components that are included in the reservoir 10 of FIGS. 1, 2A,
and 2B. Therefore, in the interest of brevity, the components of
the reservoirs 10 and 30 that correspond to each other have been
provided with the same reference numerals, and an explanation of
their structure and function will not be repeated. The reservoir 30
includes the exterior threads 18 formed on the exterior of the neck
section 14 and interior threads 28 disposed on the interior of the
neck section 14. Accordingly, such an embodiment may be used with
an adapter for use with a spray apparatus that has internal or
external threads on a coupling member. For example, the adapters 26
and 40 may be employed with the reservoir 30. Providing both
interior and exterior threads 28 and 30 enables the reservoir 26
and 30 to be connected to a variety different types of paint spray
apparatuses and components.
[0023] The reservoirs 10, 27, and 30 including the body 8 and lid
20 thereof may be formed from a variety of commercially available
materials. In some embodiments, the body 8 may be formed of
polymeric materials such as, polypropylene, polyethylene, or
another suitable material that is compatible with paint and/or
paint thinners. In one embodiment, the body is formed from high
density polyethylene and the lid 20 is formed of low density
polyethylene. The body 8 may be fabricated using injection molding
and blow molding using any of the aforementioned polymeric
materials. Such fabrication techniques are suitable for forming the
main section 12, neck section 14, and threads on the neck section
14 as a unitary polymeric structure. Injection molding is well
suited for forming internal threads 28 of the reservoir 27 and blow
molding is well suited for forming the external threads 18 of the
reservoir 10. The adapter 26 and 40 may also be formed from the
same or similar materials using injection molding or another
suitable process. Accordingly, the above materials and processes
enable forming a reservoir having integrally formed threads that is
cheap enough to be disposed by the user after use.
[0024] Additional embodiments are directed to a kit. The kit may
contain one or more of the aforementioned liquid reservoirs along
with their associated lids, and a one or more compatible adapters,
such as any of the aforementioned adapters. For example, the kit
may include a combination of any of the aforementioned reservoirs
and a combination of any of the aforementioned adapters that are
compatible with the reservoirs. The kit may also include
instructions for use and/or information about which commercially
available spray apparatuses are compatible with which adapters and
reservoirs. In one embodiment, a plurality of reservoirs may be
nested within each other to reduce the overall size of the kit when
packaged.
[0025] FIG. 5 shows a schematic side elevation view of a spray
assembly 50 according to one embodiment of the invention that may
employ any of the aforementioned embodiments of reservoirs and
adapters. The spray assembly 50 includes a spray gun apparatus 52
having a reservoir 54 that threadly attaches to a threaded coupling
member 56 of the spray gun apparatus 52. As depicted in FIG. 5, in
one embodiment, the reservoir 54 has internal threads that are
threadly coupled to external threads 58 of the threaded coupling
member 56. In other embodiments, the reservoir 54 may have external
threads and an adapter having internal threads that may be threadly
coupled to external threads 58 of the threaded coupling member 56.
The reservoir 10 and adapter 26 show such an embodiment. Similarly,
in another embodiment, the threaded coupling member 56 may have
internal threads and the reservoir 54 may also have internal
threads. In such a case, an adapter such as the adapter 40 shown in
FIG. 3 may be used to couple the reservoir to the spray gun
apparatus 52.
[0026] Upon the user manually pulling a trigger 60, the paint or
other liquid is gravity fed from the reservoir 54 through a
passageway (not shown), which may be formed in the thread coupling
member 56 or in another component, to fluidly communicate the paint
with a nozzle 62 of the spray gun apparatus 52. A compressed air
source 64 also delivers compressed air to the spray gun apparatus
52 that is emitted from an air cap 66 that mixes externally with
the paint to atomize the paint. One of ordinary skill in the art
will recognize that the various embodiments for the reservoirs and
adapters may be used with other spray gun apparatuses. The spray
gun apparatus 52 shown in FIG. 5 is merely one type of spray gun
apparatus that may be employed.
[0027] In operation, the user attaches the reservoir 54 to the
spray gun apparatus 52. If necessary, the user may first couple an
adapter to the thread coupling member 56 or, alternatively, first
to the reservoir 54. Then, the user fills the reservoir 54 with the
desired amount and type of paint and/or paint thinner, and closes
the reservoir 54 with the lid 20. The user sprays the paint in the
reservoir 54 onto a surface. When the user is finished, the user
may decouple the reservoir 54 from the spray gun apparatus 52. Any
un-used paint may be poured into another container and the
reservoir 54 may be disposed or thrown away. Another reservoir 54
may then be attached to the spray gun apparatus 52 and the process
repeated using the same or a different type of paint and/or paint
thinner.
[0028] Although the invention has been described with reference to
the disclosed embodiments, persons skilled in the art will
recognize that changes may be made in form and detail without
departing from the spirit and scope of the invention. For example,
the gravity feed spray gun apparatus 52 is one example of a
commercially available spray gun that may be used with the adapters
and reservoirs disclosed herein. Such modifications are well within
the skill of those ordinarily skilled in the art. Accordingly, the
invention is not limited except as by the appended claims.
* * * * *