Patent US3671094A successfully refreshed from Google Patents.
US3671094A
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Cover apparatus
Assignee: Xerox Corp
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Filing: 1970-09-14
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Granted: 1972-06-20
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Expires: 1990-09-14
Abstract
Abstract COVER APPARATUS FOR USE WITH A SHEET STACKING UNIT IN WHICH THE COVER OF THE UNIT IS CONNECTED TO THE FRAME BY ONE OR MORE RODS WHICH ACT AGAINST TWO DIFFERENT SPRINGS. ONE SPRING IS RELATIVELY STIFF TO URGE THE COVER TO A SLIGHTLY OPENED POSITION WHEN THE COVER IS UNLOCKED THE OTHER SPRING IS RELATIVELY COMPRESSIBLE TO ACT AGAINST THE ROD WHEN THE COVER IS RAISED TO ITS FULLY OPENED POSITION. CIRCUITRY IS COUPLED TO THE COVER LOCKING DEVICE IN EFFECT A POP OPEN ACTION WHEN A SIGNAL IS RECEIVED TO UNLOCK AND ALSO TO A TRAY BELOW THE COVER TO RAISE THE TRAY WHEN THE COVER IS FULLY EXTENDED.
Inventors
- 👤 Lyman H Turner
- 👤 John A Adamek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:07
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/04; B65H31/12; B65H31/18; B65H31/34; B65H31/36; B65H33/00; B65H33/06; B65H33/08; B65H2404/00; B65H2404/10; B65H2404/11; B65H2404/111; B65H2404/1114; B65H2801/00; B65H2801/03; B65H2801/12; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |