Patent US3209931A successfully refreshed from Google Patents.
US3209931A
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US
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Sheet transfer method
Assignee: SOUTHWORTH MACHINE CO
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Filing: 1959-06-24
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Granted: 1965-10-05
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Expires: 1979-06-24
Abstract
No abstract record available.
Inventors
- 👤 Hawkes Howard Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:03
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/32; B65H3/322; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF UNSTACKING A STACK OF FLAT SHEETS, PILE BY PILE, WHEREIN THE STACK IS VERTICALLY MOVABLE AND EACH SUCCESSIVE TOPMOST PILE IS UNSTACKED BY A PORTABLE, PILETRANSFER, TABLE HAVING A TABLE TOP SUPPORTED AT WAIST LEVEL ON AN INTEGRAL, MOVABLE FRAME, SAID METHOD COMPRISING THE STEPS OF; VERTICALLY POSITIONING SAID STACK WITH THE BOTTOM OF THE TOPMOST PIPE SUBSTANTIALLY AT THE LEVEL OF SAID TABLE TOP; THEN LIFTING UPWARDLY THE EDGE PORTION OF SAID TOPMOST PILE, OPPOSITE THE FRONT EDGE OF SAID TABLE TOP, TO CREATE AN OPENING IN SAID STACK; THEN ADVANCING SAID TABLE TO COMPLETELY STRADDLE THE PORTION OF SAID STACK BELOW SAID TOPMOST PILE WHILE FIRST EXERTING AN UPWARD FORCE, BEYOND THE LATERAL EDGES OF THE STACK, TO INCREASE THE SIZE OF SAID OPEN-
Claim 2
Independent Claim
129 words
A METHOD OF UNSTACKING A STACK OF FLAT SHEETS, PILE BY PILE, WHEREIN THE STACK IS VERTICALLY MOVABLE AND EACH SUCCESSIVE TOPMOST PILE IS UNSTACKED BY A PORTABLE, PILETRANSFER, TABLE HAVING A TABLE TOP SUPPORTED AT WAIST LEVEL ON AN INTEGRAL, MOVABLE FRAME, SAID METHOD COMPRISING THE STEPS OF; VERTICALLY POSITIONING SAID STACK WITH THE BOTTOM OF THE TOPMOST PIPE SUBSTANTIALLY AT THE LEVEL OF SAID TABLE TOP; THEN LIFTING UPWARDLY THE EDGE PORTION OF SAID TOPMOST PILE, OPPOSITE THE FRONT EDGE OF SAID TABLE TOP, TO CREATE AN OPENING IN SAID STACK; THEN ADVANCING SAID TABLE TO COMPLETELY STRADDLE THE PORTION OF SAID STACK BELOW SAID TOPMOST PILE WHILE FIRST EXERTING AN UPWARD FORCE, BEYOND THE LATERAL EDGES OF THE STACK, TO INCREASE THE SIZE OF SAID OPEN-
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |