Patent US3110489A successfully refreshed from Google Patents.
US3110489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet separating mechanism capable of feeding thin limp paper
Assignee: AB Dick Co
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Filing: 1960-06-20
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Granted: 1963-11-12
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 George J Zahradnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:52
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A PRINTING MACHINE, THE COMBINATION COMPRISING A TABLE FOR SUPPORTING A STACK OF SHEETS TO BE FED THROUGH THE PRINTING MACHINE, A PAIR OF SIDE RAILS ON SAID TABLE FOR ENGAGING AND POSITIONING THE SIDES OF THE STACK, FEED MEANS FOR ENGAGING THE STACK AND PROPELLING THE TOPMOST SHEET FORWARDLY THEREFROM, A PAIR OF CORNER SEPARATORS MOUNTED ON THE PRINTING MACHINE FOR ENGAGING THE FRONT CORNERS OF THE STACK ADJACENT THE FRONT ENDS OF SAID RAILS AND CAUSING THE TOPMOST SHEET OF THE STACK TO BUCKLE AT ITS FRONT CORNERS AS THE TOPMOST SHEET IS MOVED FORWARDLY BY SAID FEED MEANS, EACH OF SAID CORNER SEPARATORS COMPRISING A GENERALLY VERTICAL BAR IN FRONT OF ONE FRONT CORNER OF THE STACK AND A REARWARDLY PROJECTING LIP ON THE UPPER END OF SAID BAR AND RESTING UPON THE TOP OF ONE OF THE FRONT CORNER PORTIONS OF THE TOPMOST SHEET IN THE STACK, A PAIR OF HIGHLY FLEXIBLE AND RESILIENT SPRING STRIPS ENGAGING THE UPPER SIDE OF THE TOPMOST SHEET IN THE STACK ADJACENT THE CORNER SEPARATORS TO PREVENT THE TOPMOST
Claim 2
Dependent Claim
180 words
IN A PRINTING MACHINE, THE COMBINATION COMPRISING A TABLE FOR SUPPORTING A STACK OF SHEETS TO BE FED THROUGH THE PRINTING MACHINE, A PAIR OF SIDE RAILS ON SAID TABLE FOR ENGAGING AND POSITIONING THE SIDES OF THE STACK, FEED MEANS FOR ENGAGING THE STACK AND PROPELLING THE TOPMOST SHEET FORWARDLY THEREFROM, A PAIR OF CORNER SEPARATORS MOUNTED ON THE PRINTING MACHINE FOR ENGAGING THE FRONT CORNERS OF THE STACK ADJACENT THE FRONT ENDS OF SAID RAILS AND CAUSING THE TOPMOST SHEET OF THE STACK TO BUCKLE AT ITS FRONT CORNERS AS THE TOPMOST SHEET IS MOVED FORWARDLY BY SAID FEED MEANS, EACH OF SAID CORNER SEPARATORS COMPRISING A GENERALLY VERTICAL BAR IN FRONT OF ONE FRONT CORNER OF THE STACK AND A REARWARDLY PROJECTING LIP ON THE UPPER END OF SAID BAR AND RESTING UPON THE TOP OF ONE OF THE FRONT CORNER PORTIONS OF THE TOPMOST SHEET IN THE STACK, A PAIR OF HIGHLY FLEXIBLE AND RESILIENT SPRING STRIPS ENGAGING THE UPPER SIDE OF THE TOPMOST SHEET IN THE STACK ADJACENT THE CORNER SEPARATORS TO PREVENT THE TOPMOST
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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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |