US3877823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable cartridge for fountain paint rollers
Assignee: Individual
•
Filing: 1973-05-11
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Granted: 1975-04-15
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Expires: 1993-05-11
Abstract
Abstract An interchangeable cartridge for rapid replacement of a paint supply for fountain type rollers is described. The cartridge comprises an outer and an inner cylinder having mating longitudinal rows of apertures. End sealing means are provided, one of which includes means for rotating the inner cylinder with respect to the outer cylinder about its longitudinal axis, thus aligning the two sets of apertures. When the apertures are aligned, paint contained in the inner cylinder will flow outwardly to an applicator pad. When the apertures are out of alignment, the paint flow will be cut off. A handle is attached to the end sealing means by spring-loaded extensions, which also serve to secure one of the end sealing means, while at the same time permitting the inner cylinder to rotate.
Inventors
- 👤 Ragnvald G Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/02; B05C17/0217; B05C17/025
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
In a fountain paint roller, an interchangeable cartridge comprising: a. an outer cylindEr having a first set of apertures therein; b. an inner cylinder having a second set of apertures therein; c. said inner cylinder being disposed within said outer cylinder and being rotatable therewithin between a first position wherein said first and second sets of apertures are not aligned and a second position wherein said sets of apertures are aligned; d. guide means for constraining the rotation of said inner cylinder between said first and second positions; e. end closure means for said inner cylinder comprising means for rotating said inner cylinder between said first and second positions; f. a tapered annular flange on said end closure means; and g. a collar on said inner cylinder having a tapered inner surface for sealingly receiving said flange.
Claim 2
Dependent Claim
137 words
In a fountain paint roller, an interchangeable cartridge comprising: a. an outer cylindEr having a first set of apertures therein; b. an inner cylinder having a second set of apertures therein; c. said inner cylinder being disposed within said outer cylinder and being rotatable therewithin between a first position wherein said first and second sets of apertures are not aligned and a second position wherein said sets of apertures are aligned; d. guide means for constraining the rotation of said inner cylinder between said first and second positions; e. end closure means for said inner cylinder comprising means for rotating said inner cylinder between said first and second positions; f. a tapered annular flange on said end closure means; and g. a collar on said inner cylinder having a tapered inner surface for sealingly receiving said flange.
Claim 3
Dependent Claim
34 words
The interchangeable cartridge set forth in claim 1 wherein said guide means comprises means disposed on the surface of said inner cylinder for interengagement with cooperating means on the surface of said outer cylinder.
Claim 4
Dependent Claim
39 words
The interchangeable cartridge set forth in claim 2 wherein said means disposed on the outer surface of said inner cylinder comprises a first button means and the means disposed on the surface of said outer cylinder comprises a cut-out.
Claim 5
Dependent Claim
20 words
The interchangeable cartridge set forth in claim 3 wherein said means for rotating said inner cylinder comprises finger gripping means.
Claim 6
Dependent Claim
25 words
The interchangeable cartridge set forth in claim 1 further including end closure disc means for said outer cylinder permanently secured to the inner surface thereof.
Claim 7
Dependent Claim
28 words
The interchangeable cartridge set forth in claim 5 further including indentations in the center of each of said disc means for rotatably mounting a handle on said cartridge.
Claim 8
Dependent Claim
31 words
The combination set forth in claim 6 further including means having spring-like extensions for engaging said indentations, thus serving to retain in place said end closure means for the inner cylinder.
Claim 9
Dependent Claim
43 words
A device as claimed in claim 1 wherein one of said sets of apertures are circular and the other of said set of apertures are elongate to provide means for infinitely varying the effective size of said apertures when in partially aligned relation.
Claim 10
Dependent Claim
30 words
A device as claimed in claim 1 wherein said collar and said flange have cooperating flattened surfaces which interengage to prevent rotation of said end closure means in said collar.
Claim 11
Dependent Claim
24 words
A device as claimed in claim 9 wherein said outer cylinder engages against said collar on said inner cylinder with said cylinders completely assembled.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |