Patent US3201057A successfully refreshed from Google Patents.
US3201057A
Expired / Lapsed
US
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Web unwind apparatus
Assignee: EIDP Inc
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Filing: 1963-08-01
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Granted: 1965-08-17
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Ryan Danahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:00
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43; B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1842; B65H19/1852; B65H19/1857; B65H19/1868; G03C; G03C3/00; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/461; B65H2301/4615; B65H2301/4617; B65H2301/46172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A DEVICE FOR UNWINDING WEB FROM SPOOLS BY THE ACTION OF AN UNWIND DRIVING FORCE THE COMBINATION COMPRISING A TURRET, A PAIR OF ROTATABLE SPINDLES ON SAID TURRET EACH ADAPTED TO RECEIVE A SPOOL, UNWIND TORQUE MEANS FOR RESISTING THE ROTATION OF EACH SPINDLE CAUSED BY SAID DRIVING FORCE, SENSING MEANS FOR SENSING THE DECREASING DIAMETER OF WEB ON A SPOOL, CONTROL MEANS RESPONSIVE TO SAID SENSING MEANS FOR REDUCING THE RESISTING TORQUE OF SAID UNWIND TORQUE MEANS THEREBY MAINTAINING CONSTANT TENSION IN SAID WEB AS IT IS BEING UNWOUND, MEANS FOR DETECTING THE EXHAUSTION OF THE WEB FROM A SPENT SPOOL, SAID TURRET HAVING INDEXING MEANS FOR POSITIONING A FRESH SPOOL
Claim 2
Dependent Claim
113 words
IN A DEVICE FOR UNWINDING WEB FROM SPOOLS BY THE ACTION OF AN UNWIND DRIVING FORCE THE COMBINATION COMPRISING A TURRET, A PAIR OF ROTATABLE SPINDLES ON SAID TURRET EACH ADAPTED TO RECEIVE A SPOOL, UNWIND TORQUE MEANS FOR RESISTING THE ROTATION OF EACH SPINDLE CAUSED BY SAID DRIVING FORCE, SENSING MEANS FOR SENSING THE DECREASING DIAMETER OF WEB ON A SPOOL, CONTROL MEANS RESPONSIVE TO SAID SENSING MEANS FOR REDUCING THE RESISTING TORQUE OF SAID UNWIND TORQUE MEANS THEREBY MAINTAINING CONSTANT TENSION IN SAID WEB AS IT IS BEING UNWOUND, MEANS FOR DETECTING THE EXHAUSTION OF THE WEB FROM A SPENT SPOOL, SAID TURRET HAVING INDEXING MEANS FOR POSITIONING A FRESH SPOOL
References Cited (Backward Citations)
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |