Patent US4039345A successfully refreshed from Google Patents.
Patent US3079147A successfully refreshed from Google Patents.
US3079147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding
Assignee: Unisys Corp
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Filing: 1960-09-02
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Granted: 1963-02-26
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 George W Childs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:32
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/0808; B65H3/0816; B65H3/46; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A MATERIAL HANDLING APPARATUS COMPRISING MEANS TO HOLD A STACK OF THIN SHEETS, A VACUUM OPERATED PICKUP MEANS, MEANS TO DRIVE SAID VACUUM OPERATED PICKUP MEANS TO CYCLICALLY MOVE SAID VACUUM OPERATED PICKUP MEANS FROM A POSITION OVER SAID STACK TO A POSITION REMOTE FROM SAID STACK IN A PREDETERMINED PATH GOING AWAY FROM SAID STACK ALONG A LINE INITIALLY PARALLEL TO THE TOP OF SAID STACK, SAID VACUUM OPERATED PICKUP MEANS COMING TO A SUBSTANTIAL STOP OVER SAID STACK ONCE EACH CYCLE AND CAUSING THE TOP SHEET TO BE PICKED UP FROM SAID STACK BY SAID VACUUM OPERATED PICKUP MEANS AND CARRIED TO SAID REMOTE POSITION, MEANS TO REMOVE FROM SAID VACUUM OPERATED PICKUP MEANS THE SHEET CARRIED BY THE LAST SAID MEANS AT SAID REMOTE POSITION, MEANS DEFINING A DUCT FIXEDLY POSITIONED ADJACENT SAID STACK AND CLOSE BUT SPACED FROM SAID PATH, MEANS TO SUCK AIR IN THROUGH SAID DUCT TO CAUSE ALL THE SHEETS BUT THE ONE CARRIED BY SAID VACUUM OPERATED PICKUP MEANS TO BE DROPPED FROM THE LAST SAID MEANS IN A POSITION SUBSTANTIALLY ON THE TOP OF SAID STACK TO BE PICKED UP BY SAID ARM ON THE SUCCEEDING CYCLES OF SAID ARM.
Claim 2
Dependent Claim
199 words
A MATERIAL HANDLING APPARATUS COMPRISING MEANS TO HOLD A STACK OF THIN SHEETS, A VACUUM OPERATED PICKUP MEANS, MEANS TO DRIVE SAID VACUUM OPERATED PICKUP MEANS TO CYCLICALLY MOVE SAID VACUUM OPERATED PICKUP MEANS FROM A POSITION OVER SAID STACK TO A POSITION REMOTE FROM SAID STACK IN A PREDETERMINED PATH GOING AWAY FROM SAID STACK ALONG A LINE INITIALLY PARALLEL TO THE TOP OF SAID STACK, SAID VACUUM OPERATED PICKUP MEANS COMING TO A SUBSTANTIAL STOP OVER SAID STACK ONCE EACH CYCLE AND CAUSING THE TOP SHEET TO BE PICKED UP FROM SAID STACK BY SAID VACUUM OPERATED PICKUP MEANS AND CARRIED TO SAID REMOTE POSITION, MEANS TO REMOVE FROM SAID VACUUM OPERATED PICKUP MEANS THE SHEET CARRIED BY THE LAST SAID MEANS AT SAID REMOTE POSITION, MEANS DEFINING A DUCT FIXEDLY POSITIONED ADJACENT SAID STACK AND CLOSE BUT SPACED FROM SAID PATH, MEANS TO SUCK AIR IN THROUGH SAID DUCT TO CAUSE ALL THE SHEETS BUT THE ONE CARRIED BY SAID VACUUM OPERATED PICKUP MEANS TO BE DROPPED FROM THE LAST SAID MEANS IN A POSITION SUBSTANTIALLY ON THE TOP OF SAID STACK TO BE PICKED UP BY SAID ARM ON THE SUCCEEDING CYCLES OF SAID ARM.
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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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |