Patent Application
20130168468
The present disclosure is directed to a convertible paint cup assembly and to a paint cup assembly having a pressure relief air inlet.
Spray guns can be used for rapidly coating surfaces with liquids, such as paint. Paint can be contained in a container that attaches to the spray gun. The outlet of the container can be a releasably connectable coupling that connects to the spray gun. Paint can flow from the container into the spray gun and then, fed to a spray nozzle. The spray nozzle can combine the paint with air, atomize the liquid, and form a spray. At the end of the spraying operation, the container and the mating connection to the spray gun should be thoroughly cleaned so that the paint from one operation does not contaminate the paint to be sprayed in the next spraying operation. Additionally, the coupling between container and spray gun should be free of any dried liquid that might interfere with the connection between container and spray gun. A container with a lid and a disposable cup or liner can be to eliminate or reduce the labor required to clean the container and the coupling to the spray gun.
Embodiments are illustrated by way of example and are not limited in the accompanying figures.
Skilled artisans appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the invention. The use of the same reference symbols in different drawings indicates similar or identical items.
The following description in combination with the figures is provided to assist in understanding the teachings disclosed herein. The following discussion will focus on specific implementations and embodiments of the teachings. This focus is provided to assist in describing the teachings and should not be interpreted as a limitation on the scope or applicability of the teachings.
As used herein, the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having,” or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of features is not necessarily limited only to those features but may include other features not expressly listed or other features that are inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, “or” refers to an inclusive-or and not to an exclusive-or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).
The use of “a” or “an” is employed to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the embodiments of the disclosure. This description should be read to include one or at least one and the singular also includes the plural, or vice versa, unless it is clear that it is meant otherwise.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The materials, methods, and examples are illustrative only and not intended to be limiting. To the extent not described herein, many details regarding specific materials and processing acts are conventional and may be found in textbooks and other sources within the scintillation and radiation detection arts.
Referring initially to
As indicated in
In a particular aspect, the paint liner 202, including the hollow body 302, may be transparent. In another aspect, the paint liner 202, including the hollow body 302, may be translucent. In still another aspect, the paint liner 202, including the hollow body 302, may be opaque. In still another aspect, portions of the paint liner 202 may be opaque and other portions may be transparent, translucent, or a combination thereof. For example, the paint liner 202 may substantially opaque with one or more transparent strips to facilitate measuring while filling the paint liner 202 with paint.
In a particular aspect, the paint liner 202 may be disposable. Further, in a particular aspect, the paint liner 202 may be collapsible. Specifically, the paint liner 202 may be collapsible as paint is withdrawn from within the paint liner 202. Also, in a particular aspect, the paint liner 202 may be constructed from low density polyethylene (LDPE).
As illustrated in
It can be appreciated that the volume between adjacent indicia is the same. Further, it can be appreciated that due to the tapered shape of the body 302 the spacing of the indicia along the body may vary.
In a particular aspect, each of the plurality of indicia 310 may be a raised rib extending from the body. Each of the ribs may extend internally into the body. Conversely, each of the ribs may extend externally, or outwardly, from the body.
In another aspect, each of the indicia 310 may serve as a crush zone to facilitate collapsing of the paint liner 202 as paint is expressed from the paint liner 202 during a spraying operation. The body 302 of the paint liner 202 may have a body wall thickness and each of the indicia 310 may have an indicia wall thickness and wherein the indicia wall thickness is less than the body wall thickness.
In a particular aspect, the indicia wall thickness is less than or equal to ninety percent (90%) of the body wall thickness. In another aspect, the indicia wall thickness is less than or equal to eighty-five percent (85%) of the body wall thickness. In yet another aspect, the indicia wall thickness is less than or equal to eighty percent (80%) of the body wall thickness. In still another aspect, the indicia wall thickness is less than or equal to seventy-five percent (75%) of the body wall thickness. In another aspect, the indicia wall thickness is less than or equal to seventy percent (70%) of the body wall thickness. In still yet another aspect, the indicia wall thickness is less than or equal to sixty-five percent (65%) of the body wall thickness. In yet another aspect, the indicia wall thickness is less than or equal to sixty percent (60%) of the body wall thickness.
In another aspect, the indicia wall thickness is less than or equal to fifty-five percent (55%) of the body wall thickness. In still another aspect, the indicia wall thickness is less than or equal to fifty percent (50%) of the body wall thickness. In another aspect, the indicia wall thickness is less than or equal to forty-five percent (45%) of the body wall thickness. In another aspect, the indicia wall thickness is less than or equal to forty percent (40%) of the body wall thickness. In yet another aspect, the indicia wall thickness is less than or equal to thirty-five percent (35%) of the body wall thickness. Further, in another aspect, the indicia wall thickness is less than or equal to thirty percent (30%) of the body wall thickness. In still another aspect, the indicia wall thickness is less than or equal to twenty-five percent (25%) of the body wall thickness. In another aspect, the indicia wall thickness is not less twenty percent (20%) of the body wall thickness.
Returning to
The hub 312 may include an interior surface (not illustrated) that may be formed with a plurality of internal threads. As such, the hub 312, and the extended ring 204, may be configured to threadably engage the cap 206. When assembled, as illustrated in
As further illustrated in
During use, the extended ring 204 may be threaded onto the cap 206 and the rim 308 of the paint liner 202 may be sandwiched between the extended ring 204 and the cap 206. A primary seal can be established between the rim 308 of the paint liner 202 and the primary sealing structure 336 on the cap 206. The primary seal substantially prevents fluid from leaking through the interface established by the paint liner 202 and the cap 206. A secondary seal can established between secondary sealing structure 338 on the cap 206 and the hub 312 of the extended ring 204. The secondary seal can substantially prevent fluid from leaking through the interface established by the cap 206 and the extended ring 204. The seal 207 can be compressed between distal end 316 of the hub 312 of the extended ring 204 and the external rim 339 of the cap 206, as the extended ring 204 is threaded on the cap 206, to form a tertiary seal between the distal end 316 of the hub 312 and the external rim 339 of the cap 206.
Accordingly, when the paint cup assembly 104 is filled with fluid and assembled as illustrated in
As illustrated in
Alternatively, as illustrated in
In another aspect, the outlet tube 340 may be formed with one or more grooves configured to engage one or more locking pins within the adapter.
It can be appreciated that a spring in a valve assembly, described below, may provide a biasing force to facilitate locking the paint cup assembly 104 (
In a particular aspect, the cap 206 may be constructed from polypropylene (PP).
In a particular aspect, the plunger 354 may be constructed from a thermoplastic elastomer (TPE). Further, the spring 365 may be a conical compression spring made from stainless steel.
As illustrated in
In a particular aspect, the frame 700 of the valve retainer 352 may be constructed from polypropylene. Further, the filter material 706 may be a mesh type material suitable for filtering a fluid such as paint.
As illustrated in
Returning to
As illustrated in
In a particular aspect, the valve actuator 850 may be constructed from nylon.
In a particular aspect, the base 900 (
As illustrated in
It can be appreciated that the relatively straight portion 1020 may be slightly angled toward to the end face of the adapter 106 in order to provide a ramped structure to further facilitate locking the paint cup assembly 104 (
As illustrated in
In a particular aspect, the adapter 106 may be constructed from aluminum.
Referring now to
The post 902 of the valve actuator 850 can cause the plunger 354 to move linearly into the cap 206 and through the valve retainer 352, e.g., through the central opening 702 of the valve retainer 352. As the plunger 354 moves as described, the spring 356 is compressed between the valve retainer 352 and the head 806 of the plunger 354. Further, as the plunger 354 moves into the cap 206, the sealing face 814 formed in the sealing collar 812 of the head 806 may be unseated, or otherwise disengaged, from a valve seat 1300 formed within the cap 206 at the base of the outlet tube 340.
As the sealing face 814 of the head 806 is unseated from the valve seat 1300 of the outlet tube 340, fluid, e.g., paint, may flow from the paint liner 202 through the cap 206 and out of the outlet tube 340. The fluid may then flow through the valve actuator 850 and through the adapter 106 into a paint sprayer. As the fluid flows through the cap 206, the filter material 706 (
Accordingly, as illustrated in
Referring to
The valve assembly 1400 may further include a trocar 1406 or a similarly configured needle or piercing hollow shaft. The trocar 1406 may be disposed within an internal bore 1408 of an adapter 1410. The trocar 1406 may be supported by one or more support structures 1412 that extend radially from a base of the trocar 1406 to the wall of the internal bore 1408.
As a paint cup assembly (not illustrated) is engaged with the adapter 1410, the outlet tube 1404 of the cap (not illustrated) may be inserted into the internal bore 1408 of the adapter 1410. Further, as the outlet tube 1404 is pushed into the adapter, the trocar 1406 may pierce the membrane 1402 in order to permit fluid flow out of the paint cup assembly (not illustrated) and through the adapter 1410 into a paint sprayer (not illustrated).
When the paint cup assembly (not illustrated) is disengaged from the adapter 1410, the trocar 1406 may be retracted, or otherwise removed, from the membrane 1402. Once the trocar 1406 is removed from the membrane 1402, the membrane 1402 may seal the hole formed at the location within the membrane 1402 in which the trocar 1406 pierced the membrane 1402. As such, if the paint cup assembly (not illustrated) remains at least partially filled with fluid, leakage of the fluid is substantially minimized.
In a particular aspect, the seal 207 can include a polymer. The polymer can include a thermoset polymer. Moreover, the thermoset polymer can include polyethylene, polyethylene foam, or a combination thereof. The polyethylene foam can include a closed cell polyethylene foam. In another aspect, the seal 207 can include a hydrophobic polymer.
In a particular aspect, the seal 207 can include a seal width 1508 of at least about 4 mm. For example, the seal width 1508 can be at least about 5 mm, at least about 6 mm, at least about 7 mm, or at least about 8 mm. The seal width 1508 can also be limited. For example, the seal width 1508 may be no greater than about 12.5 mm, no greater than about 12.0 mm, no greater than about 11.0 mm, or no greater than about 10.0 mm. The seal width 1508 can be in a range between and including any of the minimum or maximum widths described above.
For example, the seal width 1508 can be ≧5 mm and ≦12.5 mm, such as ≧5 mm and ≦12.0 mm, ≧5 mm and ≦11.0 mm, or ≧5 mm and ≦10.0 mm. In another aspect, the seal width 1508 can be ≧6 mm and ≦12.5 mm, such as ≧6 mm and ≦12.0 mm, ≧6 mm and ≦11.0 mm, or ≧6 mm and ≦10.0 mm. Further, the seal width 1508 can be ≧7 mm and ≦12.5 mm, such as ≧7 mm and ≦12.0 mm, ≧7 mm and ≦11.0 mm, or ≧7 mm and ≦10.0 mm. Moreover, the seal width 1508 can be ≧8 mm and ≦12.5 mm, such as ≧8 mm and ≦12.0 mm, ≧8 mm and ≦11.0 mm, or ≧8 mm and ≦10.0 mm.
In another aspect, the seal width 1508 can be at least 4% of the outer diameter, OD, of the external rim 339 of the cap 206. For example, the seal width 1508 can be at least 4.5% of the outer diameter, at least 5.0% of the outer diameter, at least 5.5% of the outer diameter, at least 6.0% of the outer diameter, or at least 6.5% of the outer diameter of the external rim 339 of the cap 206. The seal width 1508 may be limited and may not be greater than 10% of the outer diameter of the external rim 339 of the cap 206. Further, the seal width 1508 may not be greater than 9% of the outer diameter or 8% of the outer diameter. The seal width 1508 can be in a range between and including any of the minimum or maximum percentage values described above.
For example, the seal width 1508 can be ≧4% OD and ≦10% OD, such as ≧4% OD and ≦9% OD, or ≧4% OD and ≦8% OD. Further, the seal width 1508 can be ≧4.5% OD and ≦10% OD, such as ≧4.5% OD and ≦9% OD, or ≧4.5% OD and ≦8% OD. The seal width 1508 can be ≧5% OD and ≦10% OD, such as ≧5% OD and ≦9% OD, or ≧5% OD and ≦8% OD. Moreover, the seal width 1508 can be ≧5.5% OD and ≦10% OD, such as ≧5.5% OD and ≦9% OD, or ≧5.5% OD and ≦8% OD. The seal width 1508 can be ≧6.0% OD and ≦10% OD, such as ≧6.0% OD and ≦9% OD, or ≧6.0% OD and ≦8% OD. Further still, the seal width 1508 can be ≧6.5% OD and ≦10% OD, such as ≧6.5% OD and ≦9% OD, or ≧6.5% OD and ≦8% OD.
In another particular aspect, seal thickness 1510 can be at least about 0.5 mm. Further, the seal thickness 1510 can be at least about 0.75 mm, at least about 1.0 mm, at least about 1.25 mm, at least about 1.5 mm, at least about 1.75 mm, or at least about 2.0 mm.
However, the seal thickness 1510 may be limited and may be no greater than about 3.5 mm, no greater than about 3.25 mm, no greater than about 3.0 mm, no greater than about 2.75 mm, no greater than about 2.5 mm, or no greater than about 2.25 mm. The seal thickness 1510 can be in a range between and including any of the minimum or maximum thicknesses described above.
For example, the seal thickness can be ≧0.5 mm and ≦3.5 mm, such as ≧0.5 mm and ≦3.25 mm, ≧0.5 mm and ≦3.0 mm, ≧0.5 mm and ≦2.75 mm, ≧0.5 mm and ≦2.5 mm, or ≧0.5 mm and ≦2.25 mm. In another aspect, the seal thickness can be ≧0.75 mm and ≦3.5 mm, such as ≧0.75 mm and ≦3.25 mm, ≧0.75 mm and ≦3.0 mm, ≧0.75 mm and ≦2.75 mm, ≧0.75 mm and ≦2.5 mm, or ≧0.75 mm and ≦2.25 mm. Moreover, the seal thickness can be ≧1.0 mm and ≦3.5 mm, such as ≧1.0 mm and ≦3.25 mm, ≧1.0 mm and ≦3.0 mm, ≧1.0 mm and ≦2.75 mm, ≧1.0 mm and ≦2.5 mm, or ≧1.0 mm and ≦2.25 mm. The seal thickness can be ≧1.5 mm and ≦3.5 mm, such as ≧1.5 mm and ≦3.25 mm, ≧1.5 mm and ≦3.0 mm, ≧1.5 mm and ≦2.75 mm, ≧1.5 mm and ≦2.5 mm, or ≧1.5 mm and ≦2.25 mm. Further, the seal thickness can be ≧1.75 mm and ≦3.5 mm, such as ≧1.75 mm and ≦3.25 mm, ≧1.75 mm and ≦3.0 mm, ≧1.75 mm and ≦2.75 mm, ≧1.75 mm and ≦2.5 mm, or ≧1.75 mm and ≦2.25 mm. Still further, the seal thickness can be ≧2.0 mm and ≦3.5 mm, such as ≧2.0 mm and ≦3.25 mm, ≧2.0 mm and ≦3.0 mm, ≧2.0 mm and ≦2.75 mm, ≧2.0 mm and ≦2.5 mm, or ≧2.0 mm and ≦2.25 mm.
In another aspect, the external rim 339 of the cap 206 can includes a rim thickness and the seal thickness 1510 can be at least about 50% of the rim thickness. For example, the seal thickness 1510 can be at least about 50% of the rim thickness, at least about 55% of the rim thickness, at least about 60% of the rim thickness, at least about 65% of the rim thickness, at least about 70% of the rim thickness, at least about 75% of the rim thickness, or at least about 80% of the rim thickness. In another aspect, the seal thickness 1510 can be limited. As such, the seal thickness 1510 may be not greater than about 200% of the rim thickness, not greater than about 175% of the rim thickness not greater than about 150% of the rim thickness, not greater than about 125% of the rim thickness, or not greater than about 100% of the rim thickness. The seal thickness 1510 can be in a range between and including any of the minimum or maximum thicknesses described above.
For example, the seal thickness 1510 can be ≧50% of the rim thickness and ≦200% of the rim thickness, such as ≧50% of the rim thickness and ≦175% of the rim thickness, ≧50% of the rim thickness and ≦150% of the rim thickness, ≧50% of the rim thickness and ≦125% of the rim thickness, or ≧50% of the rim thickness and ≦100% of the rim thickness. The seal thickness 1510 can be ≧55% of the rim thickness and ≦200% of the rim thickness, such as ≧55% of the rim thickness and ≦175% of the rim thickness, ≧55% of the rim thickness and ≦150% of the rim thickness, ≧55% of the rim thickness and ≦125% of the rim thickness, or ≧55% of the rim thickness and ≦100% of the rim thickness. Further, the seal thickness 1510 can be ≧60% of the rim thickness and ≦200% of the rim thickness, such as ≧60% of the rim thickness and ≦175% of the rim thickness, ≧60% of the rim thickness and ≦150% of the rim thickness, ≧60% of the rim thickness and ≦125% of the rim thickness, or ≧60% of the rim thickness and ≦100% of the rim thickness. Still further, the seal thickness 1510 can be ≧65% of the rim thickness and ≦200% of the rim thickness, such as ≧65% of the rim thickness and ≦175% of the rim thickness, ≧65% of the rim thickness and ≦150% of the rim thickness, ≧65% of the rim thickness and ≦125% of the rim thickness, or ≧65% of the rim thickness and ≦100% of the rim thickness.
Moreover, the seal thickness 1510 can be ≧70% of the rim thickness and ≦200% of the rim thickness, such as ≧70% of the rim thickness and ≦175% of the rim thickness, ≧70% of the rim thickness and ≦150% of the rim thickness, ≧70% of the rim thickness and ≦125% of the rim thickness, or ≧70% of the rim thickness and ≦100% of the rim thickness. The seal thickness 1510 can be ≧75% of the rim thickness and ≦200% of the rim thickness, such as ≧75% of the rim thickness and ≦175% of the rim thickness, ≧75% of the rim thickness and ≦150% of the rim thickness, ≧75% of the rim thickness and ≦125% of the rim thickness, or ≧75% of the rim thickness and ≦100% of the rim thickness. Additionally, the seal thickness 1510 can be ≧80% of the rim thickness and ≦200% of the rim thickness, such as ≧80% of the rim thickness and ≦175% of the rim thickness, ≧80% of the rim thickness and ≦150% of the rim thickness, ≧80% of the rim thickness and ≦125% of the rim thickness, or ≧80% of the rim thickness and ≦100% of the rim thickness.
In yet another aspect, the outer diameter 1506 of the seal 207 can be at least about 75% of the outer diameter of the external rim 339 of the cap 209. For example, the outer diameter 1506 can be at least about 80% of the outer diameter of the external rim, at least about 85% of the outer diameter of the external rim, at least about 90% of the outer diameter of the external rim, or at least about 95% of the outer diameter of the external rim. However, the outer diameter 1506 of the seal 207 may be no greater than about 120% of the outer diameter of the external rim, no greater than about 115% of the outer diameter of the external rim, no greater than about 110% of the outer diameter of the external rim, no greater than about 105% of the outer diameter of the external rim, or no greater than about 100% of the outer diameter of the external rim. The outer diameter 1506 of the seal 207 can be in a range between and including any of the minimum or maximum outer diameters described above.
For example, the outer diameter 1506 of the seal 207 can be ≧80% of the outer diameter of the external rim and ≦120% of the outer diameter of the external rim, such as ≧80% of the outer diameter of the external rim and ≦115% of the outer diameter of the external rim, ≧80% of the outer diameter of the external rim and ≦110% of the outer diameter of the external rim, ≧80% of the outer diameter of the external rim and ≦105% of the outer diameter of the external rim, or ≧80% of the outer diameter of the external rim and ≦100% of the outer diameter of the external rim. Further, the outer diameter 1506 of the seal 207 can be ≧85% of the outer diameter of the external rim and ≦120% of the outer diameter of the external rim, such as ≧85% of the outer diameter of the external rim and ≦115% of the outer diameter of the external rim, ≧85% of the outer diameter of the external rim and ≦110% of the outer diameter of the external rim, ≧85% of the outer diameter of the external rim and ≦105% of the outer diameter of the external rim, or ≧85% of the outer diameter of the external rim and ≦100% of the outer diameter of the external rim.
Moreover, the outer diameter 1506 of the seal 207 can be ≧90% of the outer diameter of the external rim and ≦120% of the outer diameter of the external rim, such as ≧90% of the outer diameter of the external rim and ≦115% of the outer diameter of the external rim, ≧90% of the outer diameter of the external rim and ≦110% of the outer diameter of the external rim, ≧90% of the outer diameter of the external rim and ≦105% of the outer diameter of the external rim, or ≧90% of the outer diameter of the external rim and ≦100% of the outer diameter of the external rim. The outer diameter 1506 of the seal 207 can be ≧95% of the outer diameter of the external rim and ≦120% of the outer diameter of the external rim, such as ≧95% of the outer diameter of the external rim and ≦115% of the outer diameter of the external rim, ≧95% of the outer diameter of the external rim and ≦110% of the outer diameter of the external rim, ≧95% of the outer diameter of the external rim and ≦105% of the outer diameter of the external rim, or ≧95% of the outer diameter of the external rim and ≦100% of the outer diameter of the external rim.
In another aspect, the inner diameter 1504 of the seal 207 can be approximately equal to, or slightly less, than the outer diameter of the distal end 334 of the cap 206. The seal 207 can be a single monolithic seal. In another aspect, the seal 207 can be a composite seal. For example, the seal 207 can be a multi-layered seal. Each layer of the seal 207 can comprise the same material or a different material. The seal 207 can be fixedly connected to the external rim 339 of the cap 206. For example, the seal 207 can be connected to the external rim 339 of the cap 206 by an adhesive. In another aspect, the seal 207 can be removably engaged with the cap.
Referring now to
The paint reservoir 1704 can include a generally flat, generally round, substantially rigid bottom 1710 (the paint cup assembly 1700 is illustrated in an upside down orientation in
As indicated in
In a manner similar to the hub 312 formed on the external ring 204, but more clearly shown than in
Further, a paint containment pocket 1724 can be established, or otherwise formed, between the primary seal, the secondary seal, the primary seal surface 1720, and the secondary seal surface 1722. The paint containment pocket 1724 can capture and substantially contain any paint that breaches the primary seal formed between the primary sealing structure 336 and the primary seal engagement surface 1720. The seal 207, illustrated in
A valve assembly 1750 can be installed, or otherwise disposed, on the bottom 1710 of the paint reservoir 1704 adjacent to the air inlet port 1740 so that the valve assembly 1750 is in fluid communication with the air inlet port 1740. The valve assembly 1750 can include a pressure actuated valve assembly. Further, the valve assembly 1750 can include a flexible bleeder 1752 and a bleeder retainer 1754. The flexible bleeder 1752 can be made from a flexible thermoplastic elastomer (TPE) and the bleeder retainer 1754 can be made from polypropylene (PP).
In a particular aspect, the elastic modulus of the TPE used to the construct the flexible bleeder 1752 can have an elastic modulus, λ, that can be ≧0.150 ksi, such as ≧0.20 ksi, ≧0.250 ksi, ≧0.30 ksi, or ≧0.350 ksi. Further, λ can be ≦1.0 ksi, such as ≦0.80 ksi, ≦0.75 ksi, or ≦0.725 ksi. In a particular aspect, λ can be within a range between and including any of the maximum and minimum values of λ described herein.
For example, λ can be ≧0.150 ksi and ≦1.0 ksi, such as ≧0.150 ksi and ≦0.80 ksi, ≧0.150 ksi and ≦0.75 ksi, or ≧0.150 ksi and ≦0.725 ksi. Further, λ can be ≧0.20 ksi and ≦1.0 ksi, such as ≧0.20 ksi and ≦0.80 ksi, ≧0.20 ksi and ≦0.75 ksi, or ≧0.20 ksi and ≦0.725 ksi. In another aspect, λ can be ≧0.250 ksi and ≦1.0 ksi, such as ≧0.250 ksi and ≦0.80 ksi, ≧0.250 ksi and ≦0.75 ksi, or ≧0.250 ksi and ≦0.725 ksi. Moreover, λ can be ≧0.30 ksi and ≦1.0 ksi, such as ≧0.30 ksi and ≦0.80 ksi, ≧0.30 ksi and ≦0.75 ksi, or ≧0.30 ksi and ≦0.725 ksi. Still further, can be ≧0.350 ksi and ≦1.0 ksi, such as ≧0.350 ksi and ≦0.80 ksi, ≧0.350 ksi and ≦0.75 ksi, or ≧0.350 ksi and ≦0.725 ksi.
The flexible bleeder 1752 can be generally frustoconical and can include a flat base 1756. An angled wall 1758 can extend from the base 1756 and can include a distal end 1760. The distal end 1760 of the angled wall 1758 can be formed with a rim 1762. As illustrated in
In a particular aspect, the angled wall 1758 of the bleeder 1752 can deform as the air pressure is reduced within the paint reservoir 1704. As the angled wall 1758 deforms the base 1756 of the flexible bleeder 1752 can moved away from the air inlet port 1740.
Accordingly, the flexible bleeder 1752 can move between a closed configuration in which the bleeder 1752 blocks the air inlet port 1740 and an open configuration in which the bleeder 1752 unblocks the air inlet port 1740. The bleeder 1752 is pressure actuated and can move to the open configuration as the air pressure inside the paint reservoir 1704 is reduced. For example, the air pressure can be reduced within the paint reservoir 1704 as paint is withdrawn from the paint reservoir 1704 during use of a spray gun attached thereto.
As indicated in
The bleeder retainer 1754 can also include a generally annular rim 1776 that can extend outwardly from the central hub 1770. The rim 1776 of the bleeder retainer 1754 can surround the air inlet port 1740 and abut the interior surface of the bottom 1710 of the paint reservoir 1704. The rim 1776 of the bleeder retainer 1754 can be formed with at least one engagement bore 1778 through the rim 1776. The paint reservoir 1704 can include at least one engagement post 1780 that can extend perpendicularly from the interior surface of the bottom 1710 of the paint reservoir 1704. The engagement bore 1778 of the rim 1776 can fit over the engagement post 1780 and maintain the bleeder retainer 1754 in engagement with the bottom 1710 of the paint reservoir 1704. In particular, the engagement bore engages the engagement post in an interference fit.
In a particular embodiment, the valve assembly 1750 can be operable to move between a closed configuration, in which air flow through the air inlet port 1740 is prevented, and an open configuration, in which air flow through the air inlet port 1740 is permitted, upon actuation of a spray gun coupled to the paint cup assembly 1700. The valve assembly 1750 can be pressure actuated and a change in pressure within the paint cup assembly 1700 can cause the valve assembly 1750 to move to the open configuration. The open configuration can be achieved automatically upon actuation of the spray gun.
In a particular aspect, the valve assembly 1750 can move to the open configuration at least partially based on the operating air pressure, PO, of the spray gun, i.e., the pressure of pressurized air flowing through the spray gun. In a particular aspect, PO can be ≧10 psi, such as ≧15 psi, ≧20 psi, ≧25 psi, or ≧30 psi. Further, PO can be ≦50 psi, such as ≦45 psi, or ≦35 psi. Further, PO can be within a range between and including any of the minimum and maximum pressure values describe above.
For example, PO can be ≧10 psi and ≦50 psi, such as ≧10 psi and ≦45 psi, or ≧10 psi and ≦35 psi. PO can be ≧15 psi and ≦50 psi, such as ≧15 psi and ≦45 psi, or ≧15 psi and ≦35 psi. PO can be ≧20 psi and ≦50 psi, such as ≧20 psi and ≦45 psi, or ≧20 psi and ≦35 psi. Further, PO can be ≧25 psi and ≦50 psi, such as ≧25 psi and ≦45 psi, or ≧25 psi and ≦35 psi. Further still, PO can be ≧30 psi and ≦50 psi, such as ≧30 psi and ≦45 psi, or ≧30 psi and ≦35 psi.
In a particular aspect, the actuation pressure, PA, to open the valve assembly 1750 can be ≦PO. For example, the PA can be ≦5 psi, such as ≦4 psi, or ≦3 psi. Further, PA can be ≧1 psi, such as ≧1.5 psi, or ≧2 psi. Further, PA can be within a range between and including any of the minimum and maximum pressure values describe above.
For example, PA can be ≦5 psi and ≧1 psi, such as ≦5 psi and ≧1.5 psi, or ≦5 psi and ≧2 psi. PA can be ≦4 psi and ≧1 psi, such as ≦4 psi and ≧1.5 psi, or ≦4 psi and ≧2 psi. Moreover, PA can be ≦3 psi and ≧1 psi, such as ≦3 psi and ≧1.5 psi, or ≦3 psi and ≧2 psi.
It another aspect, the valve assembly 1750 can substantially prevent paint from leaking out of the air inlet port 1740 when the valve assembly 1750 is in the closed configuration and the paint cup assembly 1700 is standing substantially upright on the bottom 1710 of the paint reservoir 1704 (rotated 180° from the orientation illustrated in
With the configuration described herein, the convertible paint cup assembly provides a paint cup assembly having a single cap onto which at least two different paint reservoirs can be threaded. The paint cup assembly can include a paint reservoir that includes a collapsible liner or a rigid paint reservoir. Moreover, the collapsible liner can be used with the extended ring or installed inside the rigid paint reservoir. Also, the extended ring can be configured to fit into the rigid paint reservoir so that the rigid paint reservoir can be used to support the extended ring and collapsible paint liner while being filled.
A user can select which type of paint reservoir to use based on the paint process or the user preferences. Further, the rigid paint reservoir includes an air inlet and a valve assembly. The valve assembly can automatically allow the infiltration of air into the rigid paint reservoir upon actuation of the paint sprayer.
Note that not all of the activities described above in the general description or the examples are required, that a portion of a specific activity may not be required, and that one or more further activities may be performed in addition to those described. Still further, the order in which activities are listed is not necessarily the order in which they are performed.
Certain features that are, for clarity, described herein in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features that are, for brevity, described in the context of a single embodiment, may also be provided separately or in any subcombination. Further, reference to values stated in ranges includes each and every value within that range.
Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any feature(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential feature of any or all the claims.
The specification and illustrations of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. The specification and illustrations are not intended to serve as an exhaustive and comprehensive description of all of the elements and features of apparatus and systems that use the structures or methods described herein. Separate embodiments may also be provided in combination in a single embodiment, and conversely, various features that are, for brevity, described in the context of a single embodiment, may also be provided separately or in any subcombination. Further, reference to values stated in ranges includes each and every value within that range. Many other embodiments may be apparent to skilled artisans only after reading this specification. Other embodiments may be used and derived from the disclosure, such that a structural substitution, logical substitution, or another change may be made without departing from the scope of the disclosure. Accordingly, the disclosure is to be regarded as illustrative rather than restrictive.
The present application claims priority from U.S. Provisional Patent Application No. 61/582,227, filed Dec. 30, 2011, entitled “CONVERTIBLE PAINT CUP ASSEMBLY WITH AIR INLET VALVE,” naming inventors Biagio P. Pellegrino, Thomas R. Nixon and Clemens E. Zoellner, which application is incorporated by reference herein in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61582227 | Dec 2011 | US |
