US4084807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper feeding roller
Assignee: Xerox Ltd
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Filing: 1976-05-07
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Granted: 1978-04-18
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Expires: 1996-05-07
Abstract
Abstract A sheet-feed roller system that employs an annular deformable resilient roller eccentrically mounted on a shaft for rotation whereby rotation of the shaft brings the roller into contact with sheets only when they are to be fed by the roller in order to increase the feed force while minimizing the pressing force on the sheets to thereby reduce sheet misfeed.
Inventors
- 👤 Yasuhiko Terajima
- 👤 Osamu Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:34
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/02; B65H3/06; B65H3/0638
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
An apparatus for feeding substrates comprising in combination: a rotatable shaft; an elliptical interrupted, resilient member connected to said shaft so that it rotates with said shaft; and wherein said elliptical interrupted resilient member is mounted eccentrically to said shaft so that as the shaft rotates said annular resilient member flattens on said substrates to feed said substrates.
Claim 2
Independent Claim
58 words
An apparatus for feeding substrates comprising in combination: a rotatable shaft; an elliptical interrupted, resilient member connected to said shaft so that it rotates with said shaft; and wherein said elliptical interrupted resilient member is mounted eccentrically to said shaft so that as the shaft rotates said annular resilient member flattens on said substrates to feed said substrates.
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) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |