US3072397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding mechanism
Assignee: Unisys Corp
•
Filing: 1959-11-18
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Granted: 1963-01-08
•
Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Harley E Kelchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/06; B65H5/062; B65H11/00; B65H11/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
A MECHANISM FOR FEEDING THIN FLEXIBLE PAPER SHEETS COMPRISING, A ROTATABLE DRIVE SHAFT OF UNIFORM DIAMETER THROUGHOUT ITS LENGTH, A FEED ROLLER ROTATABLY MOUNTED ON THE DRIVE SHAFT FOR FRICTIONALLY FEEDING A SHEET BY A SURFACE OF THE SHEET WHICH IS PARALLEL TO THE DIRECTION OF FEEDING, A CLUTCH DISC SLIDABLY MOUNTED ON SAID DRIVE SHAFT, SPRING MEANS URGING SAID CLUTCH DISC INTO CONTACT WITH A FACE OF SAID ROLLER TO FRICTIONALLY COUPLE THE ROLLER TO SAID DRIVE SHAFT, A FLAT PLATEN CONSTRUCTED TO SUPPORT AND GUIDE A SHEET IN A STRAIGHT LINE, A SPRING MEMBER PRESSING SAID PLATEN AGAINST THE ROLLER FOR FEEDING SHEETS THEREBETWEEN BY ROTATION OF THE ROLLER, A MOVABLE STOP MEMBER FOR ARRESTING MOVEMENT OF A SHEET, WHILE IT IS BEING FED ALONG SAID PLATEN AND ITS SAID SURFACE IS IN THE GRIP OF SAID ROLLER AND SAID PLATEN, SAID STOP MEMBER BEING ARRANGED FOR MOVEMENT IN A RE-
References Cited (Backward Citations)
US650410A
Cited
US1290509A
Cited
US1286714A
Cited
US1718225A
Cited
US2101268A
Cited
US2156049A
Cited
US2394577A
Cited
US2677542A
Cited
US2613598A
Cited
US2711237A
Cited
US2757928A
Cited
US2964994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |