US3729764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paint tray
Assignee: Baltimore Brushes Inc
•
Filing: 1971-03-10
•
Granted: 1973-05-01
•
Expires: 1991-03-10
Abstract
Abstract A reversible paint tray designed for serving thixotropic paint from a compartment on one side and conventional oil or water base paint from a second compartment on the other side is molded in one piece of a nonwettable plastic. A multiplicity of spacedapart, generally cylindrical studs project up from the bottom of the one compartment. These studs have sharp upper edges which provide a toothed engagement with a napped surface of a paint roller so that when the roller is pulled across the bottom of the compartment, the teeth ''''dig'''' into the roller surface to complete a force couple which rotates the roller despite the opposition provided by the thixotropic paint. The other tray compartment has formed on its bottom wall the usual ribs arranged in a herringbone design and short stubs which suffice to rotate the roller immersed in the less viscous oil and water-base paint.
Inventors
- 👤 E Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/12; B44D3/126
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
62 words
A paint tray having an imperforate ramp extending out of a well, and comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the bottom of the ramp, said studs having sharp edges around the periphery thereof at their upper ends, said edges being adapted to engage and facilitate the rotation of the surface of a paint roller being drawn thereacross.
Claim 2
Dependent Claim
62 words
A paint tray having an imperforate ramp extending out of a well, and comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the bottom of the ramp, said studs having sharp edges around the periphery thereof at their upper ends, said edges being adapted to engage and facilitate the rotation of the surface of a paint roller being drawn thereacross.
Claim 3
Dependent Claim
19 words
A paint tray as defined in claim 1 wherein said studs are cylindrical and about one-fourth-inch in average diameter.
Claim 4
Dependent Claim
31 words
A paint tray as defined in claim 2 wherein said studs are spaced on centers about one-inch apart arranged in rows which are diagonal with respect to sidewalls of said tray.
Claim 5
Dependent Claim
23 words
The paint tray defined in claim 1 and further including a relatively shallow horizontal receptacle contiguous with the upper end of the ramp.
Claim 6
Dependent Claim
27 words
The paint tray as defined in claim 1 wherein the paint tray is reversible containing a mating well and ramp on the opposite face of the tray.
Claim 7
Dependent Claim
17 words
The paint tray defined in claim 1 wherein the tray is molded of a relatively nonwettable plastic.
Claim 8
Dependent Claim
22 words
The paint tray defined in claim 6 wherein the plastic contains a pigment so that the molded tray has a uniform color.
Claim 9
Dependent Claim
12 words
The paint tray defined in claim 6 wherein the plastic comprises polyethylene.
Claim 10
Dependent Claim
85 words
A relatively rigid, impact-resistant, molded plastic, reversible, imperforate paint tray having nesting wells on opposite faces of the tray and ramps extending out of the wells, the improvement comprising an array of closely spaced studs extending generally perpendicularly from the floor of at least one of the wells and a second array of closely spaced studs projecting from the corresponding ramp, said studs having sharp upper edges about the top surface thereof to provide a toothed engagement with the surface of a conventional paint roller.
Claim 11
Dependent Claim
85 words
A relatively rigid, impact-resistant, molded plastic, reversible, imperforate paint tray having nesting wells on opposite faces of the tray and ramps extending out of the wells, the improvement comprising an array of closely spaced studs extending generally perpendicularly from the floor of at least one of the wells and a second array of closely spaced studs projecting from the corresponding ramp, said studs having sharp upper edges about the top surface thereof to provide a toothed engagement with the surface of a conventional paint roller.
Claim 12
Dependent Claim
17 words
The paint tray defined in claim 9 wherein the studs are arranged in staggered columns and rows.
Claim 13
Dependent Claim
20 words
The paint tray defined in claim 1 wherein the studs in the well and on the ramp are generally cylindrical.
Claim 14
Dependent Claim
75 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the ramp and having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of the paint roller which is drawn across the studs so that the roller rotates despite the opposition provided by thixotropic paint contained in the tray.
Claim 15
Dependent Claim
75 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the ramp and having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of the paint roller which is drawn across the studs so that the roller rotates despite the opposition provided by thixotropic paint contained in the tray.
Claim 16
Dependent Claim
16 words
The paint tray defined in clAim 12 wherein the studs on the ramp are generally cylindrical.
Claim 17
Dependent Claim
146 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the bottom of the well, said studs having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of a paint roller which is drawn across the studs so that the roller starts to rotate despite the opposition provided by thixotropic paint contained in the well, and further including a multiplicity of closely-spaced studs projecting up from the ramp, these studs being shorter than the studs in the well and also having sharp upper edges for providing toothed engagement with the surface of a conventional paint roller being drawn up the ramp so that the roller continues to turn, thereby distributing the paint uniformly over the entire surface of the roller.
Claim 18
Dependent Claim
146 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced studs projecting up appreciably from the bottom of the well, said studs having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of a paint roller which is drawn across the studs so that the roller starts to rotate despite the opposition provided by thixotropic paint contained in the well, and further including a multiplicity of closely-spaced studs projecting up from the ramp, these studs being shorter than the studs in the well and also having sharp upper edges for providing toothed engagement with the surface of a conventional paint roller being drawn up the ramp so that the roller continues to turn, thereby distributing the paint uniformly over the entire surface of the roller.
Claim 19
Dependent Claim
139 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced cylindrical studs projecting up appreciably from the bottom of the well, said studs having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of a paint roller which is drawn across the studs so that the roller starts to rotate despite the opposition provided by thixotropic paint contained in the well, and further including a multiplicity of closely-spaced cylindrical studs projecting up from the ramp, these studs also having sharp upper edges for providing toothed engagement with the surface of a conventional paint roller being drawn up the ramp so that the roller continues to turn, thereby distributing the paint uniformly over the entire surface of the roller.
Claim 20
Dependent Claim
139 words
A paint tray having a well and a ramp extending up out of the well, the improvement comprising a multiplicity of relatively closely-spaced cylindrical studs projecting up appreciably from the bottom of the well, said studs having sharp edges at their upper ends which enable them to obtain a toothed engagement with the surface of a paint roller which is drawn across the studs so that the roller starts to rotate despite the opposition provided by thixotropic paint contained in the well, and further including a multiplicity of closely-spaced cylindrical studs projecting up from the ramp, these studs also having sharp upper edges for providing toothed engagement with the surface of a conventional paint roller being drawn up the ramp so that the roller continues to turn, thereby distributing the paint uniformly over the entire surface of the roller.
Claim 21
Dependent Claim
36 words
The tray defined in claim 15 wherein the studs in the well are on the order of one-fourth inch in diameter, one-sixteenth inch high and are spaced apart from one another approximately one inch on center.
Claim 22
Dependent Claim
22 words
The tray defined in claim 14 wherein the studs on the ramp are approximately one-half as high as those in the well.
References Cited (Backward Citations)
US2694825A
Cited
US2661858A
Cited
US2917764A
Cited
US3351970A
Cited
US3380100A
Cited
US3590416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |