US3131932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document stacking device
Assignee: Unisys Corp
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Filing: 1962-06-18
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Granted: 1964-05-05
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Earl P Maidment
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:40
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/04; B65H31/06; B65H29/00; B65H29/38; B65H29/42; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/12; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2511/00; B65H2511/50; B65H2511/51; B65H2511/514; B65H2601/00; B65H2601/20; B65H2601/25; B65H2601/2525; B65H2701/00; B65H2701/10; B65H2701/13; B65H2701/131; B65H2701/1311; B65H2701/19; B65H2701/1912; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A SHEET HANDLING APPARATUS HAVING MEANS TO FEED A SHEET ON EDGE ALONG A PATH OF TRAVEL, A SHEET STACKING DEVICE COMPRISING A STATIONARY BIN SIDE WALL DEFINING A PART OF THE PATH OF TRAVEL AND INLET TO THE BIN, A BIN END WALL TO LIMIT TRAVEL OF A SHEET, A STACK BACK-UP MEMBER FORMING THE OTHER SIDE OF THE BIN AND BIASED TOWARD SAID STATIONARY BIN WALL FORMING THEREWITH AN ACUTE ANGLE HAVING ITS APEX TOWARD THE BIN END WALL, AN AIR JET POSITIONED ALONG SAID STATIONARY WALL TO DIRECT AN AIR STREAM TRANSVERSELY TO THE PATH OF SHEET TRAVEL TO URGE A SHEET TOWARD SAID BACK-UP MEMBER, A NORMALLY OPEN VALVE MEMBER CONTROLLING SAID JET, A SHEET STRIKER MEMBER POSITIONED ALONG SAID STATIONARY WALL BETWEEN SAID AIR JET AND THE BIN END WALL, SAID STRIKER MEMBER MOVABLE TO TAMP THE SHEET STACK, A POWER ELEMENT OPERATIVELY CONNECTED TO AND FOR ACTUATING SAID STRIKER MEMBER AND SAID VALVE MEMBER, AND A CONTROL MEMBER RESPONSIVE TO THE PASSING OF A SHEET PAST A PREDETERMINED POINT ENROUTE IN THE BIN TO ACTIVATE SAID POWER ELEMENT.
Claim 2
Dependent Claim
185 words
IN A SHEET HANDLING APPARATUS HAVING MEANS TO FEED A SHEET ON EDGE ALONG A PATH OF TRAVEL, A SHEET STACKING DEVICE COMPRISING A STATIONARY BIN SIDE WALL DEFINING A PART OF THE PATH OF TRAVEL AND INLET TO THE BIN, A BIN END WALL TO LIMIT TRAVEL OF A SHEET, A STACK BACK-UP MEMBER FORMING THE OTHER SIDE OF THE BIN AND BIASED TOWARD SAID STATIONARY BIN WALL FORMING THEREWITH AN ACUTE ANGLE HAVING ITS APEX TOWARD THE BIN END WALL, AN AIR JET POSITIONED ALONG SAID STATIONARY WALL TO DIRECT AN AIR STREAM TRANSVERSELY TO THE PATH OF SHEET TRAVEL TO URGE A SHEET TOWARD SAID BACK-UP MEMBER, A NORMALLY OPEN VALVE MEMBER CONTROLLING SAID JET, A SHEET STRIKER MEMBER POSITIONED ALONG SAID STATIONARY WALL BETWEEN SAID AIR JET AND THE BIN END WALL, SAID STRIKER MEMBER MOVABLE TO TAMP THE SHEET STACK, A POWER ELEMENT OPERATIVELY CONNECTED TO AND FOR ACTUATING SAID STRIKER MEMBER AND SAID VALVE MEMBER, AND A CONTROL MEMBER RESPONSIVE TO THE PASSING OF A SHEET PAST A PREDETERMINED POINT ENROUTE IN THE BIN TO ACTIVATE SAID POWER ELEMENT.
References Cited (Backward Citations)
US2970836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |