Patent US3159397A successfully refreshed from Google Patents.
US3159397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document separating apparatus
Assignee: Unisys Corp
•
Filing: 1962-12-12
•
Granted: 1964-12-01
•
Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Zyber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:43
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/52; B65H3/5207; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A DOCUMENT FEEDING APPARATUS FOR DEMAND FEEDING OF DOCUMENTS STACKED IN A HOPPER OUT OF THE FEED EXIT OF THE HOPPER AND INCLUDING DEMAND OPERATED FRICTION FEEDING MEANS IN THE HOPPER, MEANS URGING A STACK OF DOCUMENTS IN THE HOPPER TOWARD SAID FRICTION FEEDING MEANS, POWER DRIVEN DRIVE ROLLERS RECEIVING, A DOCUMENT FED BY SAID FRICTION FEEDING MEANS FOR CONTINUING THE FEEDING OF A DOCUMENT FED THERETO TO ANOTHER DESTINATION, A NARROW GAP FRICTION SEPARATOR LOCATED IN THE FEED EXIT OF THE HOPPER PROVIDING A FRICTIONAL SEPARATING ACTION ON A DOCUMENT FED ON DEMAND FROM THE STACK BY THE FRICTION FEEDING MEANS, A WIDE GAP THROAT SEPARATOR IN THE SAME LOCATION OF THE FEED EXIT OF THE HOPPER AS SAID FRICTION SEPARATOR, AND MEANS DISABLING THE FRICTIONAL SEPARATING ACTION PROVIDED BY SAID FRICTION SEPARATOR ON THE DOCUMENT FED TO THE POWER DRIVEN ROLLERS WHEN THAT DOCUMENT IS BEING FED BY THE DRIVE ROLLERS.
Claim 2
Dependent Claim
154 words
IN A DOCUMENT FEEDING APPARATUS FOR DEMAND FEEDING OF DOCUMENTS STACKED IN A HOPPER OUT OF THE FEED EXIT OF THE HOPPER AND INCLUDING DEMAND OPERATED FRICTION FEEDING MEANS IN THE HOPPER, MEANS URGING A STACK OF DOCUMENTS IN THE HOPPER TOWARD SAID FRICTION FEEDING MEANS, POWER DRIVEN DRIVE ROLLERS RECEIVING, A DOCUMENT FED BY SAID FRICTION FEEDING MEANS FOR CONTINUING THE FEEDING OF A DOCUMENT FED THERETO TO ANOTHER DESTINATION, A NARROW GAP FRICTION SEPARATOR LOCATED IN THE FEED EXIT OF THE HOPPER PROVIDING A FRICTIONAL SEPARATING ACTION ON A DOCUMENT FED ON DEMAND FROM THE STACK BY THE FRICTION FEEDING MEANS, A WIDE GAP THROAT SEPARATOR IN THE SAME LOCATION OF THE FEED EXIT OF THE HOPPER AS SAID FRICTION SEPARATOR, AND MEANS DISABLING THE FRICTIONAL SEPARATING ACTION PROVIDED BY SAID FRICTION SEPARATOR ON THE DOCUMENT FED TO THE POWER DRIVEN ROLLERS WHEN THAT DOCUMENT IS BEING FED BY THE DRIVE ROLLERS.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |