US3847119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer roller assembly
Assignee: Xerox Corp
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Filing: 1972-03-27
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Granted: 1974-11-12
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Expires: 1992-03-27
Abstract
Abstract A transfer roller assembly including a transfer roller and a rotary cleaning brush for an electrostatographic machine. The transfer roller assembly is rotated about a support shaft and in pressure contact with the photoconductive surface during the image transfer mode therefor. The transfer roller assembly includes a rotating cleaning brush in cleaning contact with the transfer roller and is movable with the roller about the support shaft. Separate drive mechanisms from a single drive member on the assembly provide independent rotation to the roller and the brush.
Inventors
- 👤 D Hoffman
- 👤 G Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:37
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1665; G03G15/167; G03G15/168
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
In an electrostatographic machine having a movable photoconductive member: a transfer assembly having a transfer roller mounted proximate to said photoconductive member, a rotary cleaning brush mounted adjacent said roller and having bristles in interferring engagement with the surface of said roller, said roller and said brush being mounted to rotate in the same direction, and means for pivotally supporting said assembly so that said roller can be moved into and out of contact with said photoconductive member, said pivotally supporting means permitting said roller and said brush to be moved as a unit.
Claim 2
Dependent Claim
94 words
In an electrostatographic machine having a movable photoconductive member: a transfer assembly having a transfer roller mounted proximate to said photoconductive member, a rotary cleaning brush mounted adjacent said roller and having bristles in interferring engagement with the surface of said roller, said roller and said brush being mounted to rotate in the same direction, and means for pivotally supporting said assembly so that said roller can be moved into and out of contact with said photoconductive member, said pivotally supporting means permitting said roller and said brush to be moved as a unit.
Claim 3
Dependent Claim
28 words
The combination set forth in claim 1, wherein the ratio of the speed of rotation of said brush relative to that of said transfer roller is approximately 10:1.
References Cited (Backward Citations)
US2859673A
Cited
US3105777A
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US3592642A
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US3642364A
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US3691993A
Cited
US3724422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |