Patent US2869191A successfully refreshed from Google Patents.
Patent US3154233A successfully refreshed from Google Patents.
US3154233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing mechanism for sheet feeding means
Assignee: Unisys Corp
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Filing: 1962-12-03
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Granted: 1964-10-27
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 David W Hubbard
- 👤 Henry R Cofek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:54
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B41; B41J; B41J15/00; B41J15/16; B41L; B41L1/00; B41L45/00; B41L5/00; B41L5/04; B41L5/06; B65H20/00; B65H20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
IN A SHEET FEEDING MECHANISM FOR ADVANCING SHEET MATERIAL THROUGH A WORK STATION, (A) A PLURALITY OF FEED MEMBERS DISPOSED SERIALLY ALONG THE FEED PATH AND EACH HAVING MEANS FOR ENGAGING SHEET MATERIAL STRETCHED THEREBETWEEN TO ADVANCE SAME THROUGH THE WORK STATION, (B) A FIRST ROTATABLE MEMBER FOR DRIVING THE FEED MEMBER DISPOSED AT A MORE ADVANCED POSITION ALONG THE FEED PATH, (C) A SECOND ROTATABLE MEMBER FOR DRIVING THE FEED MEMBER DISPOSED AT A LESS ADVANCED POSITION ALONG THE FEED PATH, (D) A MOTIVE POWER SOURCE FOR DRIVING SAID FIRST AND SECOND ROTATABLE MEMBERS, (E) A CLUTCH DEVICE OPERABLE FOR CONNECTING SAID POWER SOURCE TO SAID SECOND ROTATABLE MEMBER, (F) FLEXIBLE MEANS COUPLING SAID FIRST AND SECOND ROTATABLE MEMBERS FOR JOINT OPERATION, AND (G) A BRAKE DEVICE OPERABLE IN MUTUALLY EXCLUSIVE RELATION TO SAID CLUTCH DEVICE FOR ABSORBING THE INERTIA OF SAID FIRST ROTATABLE MEMBER WHEN SAID CLUTCH DEVICE IS DISENGAGED, WHEREBY SAID FLEXIBLE MEANS TRANSMITS THE DRIVING FORCE OF THE CLUTCH TO SAID FIRST ROTATABLE MEMBER AND THE DRAG OF SAID BRAKE DEVICE TO SAID SECOND ROTATABLE MEMBER TO PREVENT INCREASE IN THE LONGITUDINAL TENSION OF THE SHEET MATERIAL STRETCHED BETWEEN SAID SERIALLY ARRANGED FEED MEMBERS.
Claim 2
Dependent Claim
198 words
IN A SHEET FEEDING MECHANISM FOR ADVANCING SHEET MATERIAL THROUGH A WORK STATION, (A) A PLURALITY OF FEED MEMBERS DISPOSED SERIALLY ALONG THE FEED PATH AND EACH HAVING MEANS FOR ENGAGING SHEET MATERIAL STRETCHED THEREBETWEEN TO ADVANCE SAME THROUGH THE WORK STATION, (B) A FIRST ROTATABLE MEMBER FOR DRIVING THE FEED MEMBER DISPOSED AT A MORE ADVANCED POSITION ALONG THE FEED PATH, (C) A SECOND ROTATABLE MEMBER FOR DRIVING THE FEED MEMBER DISPOSED AT A LESS ADVANCED POSITION ALONG THE FEED PATH, (D) A MOTIVE POWER SOURCE FOR DRIVING SAID FIRST AND SECOND ROTATABLE MEMBERS, (E) A CLUTCH DEVICE OPERABLE FOR CONNECTING SAID POWER SOURCE TO SAID SECOND ROTATABLE MEMBER, (F) FLEXIBLE MEANS COUPLING SAID FIRST AND SECOND ROTATABLE MEMBERS FOR JOINT OPERATION, AND (G) A BRAKE DEVICE OPERABLE IN MUTUALLY EXCLUSIVE RELATION TO SAID CLUTCH DEVICE FOR ABSORBING THE INERTIA OF SAID FIRST ROTATABLE MEMBER WHEN SAID CLUTCH DEVICE IS DISENGAGED, WHEREBY SAID FLEXIBLE MEANS TRANSMITS THE DRIVING FORCE OF THE CLUTCH TO SAID FIRST ROTATABLE MEMBER AND THE DRAG OF SAID BRAKE DEVICE TO SAID SECOND ROTATABLE MEMBER TO PREVENT INCREASE IN THE LONGITUDINAL TENSION OF THE SHEET MATERIAL STRETCHED BETWEEN SAID SERIALLY ARRANGED FEED MEMBERS.
References Cited (Backward Citations)
US2531644A
Cited
US3049276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |