US3220724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stacker
Assignee: Unisys Corp
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Filing: 1964-05-22
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Granted: 1965-11-30
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Glahn William Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/04; B65H31/06; B65H29/00; B65H29/38; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2403/00; B65H2403/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
AN APPARATUS FOR STACKING SHEETS ON EDGE COMPRISING STATIONARY SHEET GUIDE MEANS FORMING ONE SIDE OF A STACKING BIN AND IN PART FORMING A SHEET INLET TO THE BIN, A MOVABLE BACK-UP MEMBER FORMING THE OTHER SIDE OF THE BIN AND MOVABLE AWAY FROM SAID GUIDE MEANS UNDER THE PRESSURE OF ACCUMULATING SHEETS WITHIN THE BIN, A REAR WALL OF THE BIN ENGAGEABLE BY THE LEADING EDGE OF A SHEET, SAID REAR WALL FORMING A JUNCTION WITH SAID GUIDE MEANS AND A FULCRUM FOR THE LEADING EDGE OF A SHEET TO BE PIVOTED TOWARD SAID BACK-UP MEMBER, A ROTATABLY DRIVEN SHEET STACKER MEMBER POSITIONED WITHIN SAID BIN AND LATERALLY OF SAID INLET, SAID STACKER MEMBER OPERATBLE TO ENGAGE THE TRAILING EDGE OF A SHEET AND PIVOT THE SHEET ON SAID FULCRUM TOWARD SAID BACK-UP MEMBER, MEANS URGING THE TRAILING EDGE OF A SHEET AWAY FROM SAID GUIDE MEANS TOWARD SAID STACKER MEMBER, AND A ROTATABLY DRIVEN RELAY STACKER MEMBER INTERPOSED BETWEEN SAID GUIDE MEANS AND SAID FIRST-MENTIONED STACKER MEMBER, SAID RELAY STACKER MEMBER OPERABLE TO ENGAGE AND PIVOT A SHEET ABOUT SAID FULCRUM TOWARD SAID FIRST-MENTIONED STACKER MEMBER.
Claim 2
Independent Claim
188 words
AN APPARATUS FOR STACKING SHEETS ON EDGE COMPRISING STATIONARY SHEET GUIDE MEANS FORMING ONE SIDE OF A STACKING BIN AND IN PART FORMING A SHEET INLET TO THE BIN, A MOVABLE BACK-UP MEMBER FORMING THE OTHER SIDE OF THE BIN AND MOVABLE AWAY FROM SAID GUIDE MEANS UNDER THE PRESSURE OF ACCUMULATING SHEETS WITHIN THE BIN, A REAR WALL OF THE BIN ENGAGEABLE BY THE LEADING EDGE OF A SHEET, SAID REAR WALL FORMING A JUNCTION WITH SAID GUIDE MEANS AND A FULCRUM FOR THE LEADING EDGE OF A SHEET TO BE PIVOTED TOWARD SAID BACK-UP MEMBER, A ROTATABLY DRIVEN SHEET STACKER MEMBER POSITIONED WITHIN SAID BIN AND LATERALLY OF SAID INLET, SAID STACKER MEMBER OPERATBLE TO ENGAGE THE TRAILING EDGE OF A SHEET AND PIVOT THE SHEET ON SAID FULCRUM TOWARD SAID BACK-UP MEMBER, MEANS URGING THE TRAILING EDGE OF A SHEET AWAY FROM SAID GUIDE MEANS TOWARD SAID STACKER MEMBER, AND A ROTATABLY DRIVEN RELAY STACKER MEMBER INTERPOSED BETWEEN SAID GUIDE MEANS AND SAID FIRST-MENTIONED STACKER MEMBER, SAID RELAY STACKER MEMBER OPERABLE TO ENGAGE AND PIVOT A SHEET ABOUT SAID FULCRUM TOWARD SAID FIRST-MENTIONED STACKER MEMBER.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |