Patent US3272447A successfully refreshed from Google Patents.
US3272447A
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US
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Chuck for tubular cores
Assignee: EIDP Inc
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Filing: 1964-06-23
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Granted: 1966-09-13
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Ewing Alvin Lenwood
- 👤 Haw John Osborne
- 👤 Terrell Roy Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:45
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/40; B65H54/54; B65H54/543; B65H2402/00; B65H2402/20; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN APPARATUS COMPRISING A CHUCK ADAPTED TO RECEIVE A TUBULAR CORE, SAID CHUCK COMPRISING A SPINDLE, A TUBULAR HOUSING ROTATABLY MOUNTED ON SAID SPINDLE, RETAINER MEANS FOR HOLDING THE ROTATABLE HOUSING ON THE SPINDLE, AND CERTAIN TYPES OF ANNULAR RINGS MOUNTED ON SAID TUBULAR HOUSING INCLUDING: (1) A FIRST TYPE BEING MADE OF A RELATIVELY RIGID BUT SLIGHTLY DEPRESSIBLE MATERIAL AND HAVING AN OUTSIDE DIAMETER SUBSTANTIALLY THE SAME AS THE INSIDE DIAMETER OF SAID TUBULAR CORE; (2) A SECOND TYPE BEING MADE OF A RELATIVELY COMPRESSIBLE MATERIAL HAVING A RELATIVELY HIGH COEFFICIENT OF FRICTION AND HAVING AN OUTSIDE DIAMETER SLIGHTLY GREATER THAN THE INSIDE DIAMETER OF SAID TUBULAR CORE; AND (3) A THIRD TYPE BEING MADE OF A MATERIAL CAPABLE OF RADIAL EXPANSION DUE TO CENTRIFUGAL FORCES AND HAVING AN OUTSIDE DIAMETER SLIGHTLY LESS THAN THE INSIDE DIAMETER OF SAID TUBULAR CORE.
Claim 2
Independent Claim
142 words
AN APPARATUS COMPRISING A CHUCK ADAPTED TO RECEIVE A TUBULAR CORE, SAID CHUCK COMPRISING A SPINDLE, A TUBULAR HOUSING ROTATABLY MOUNTED ON SAID SPINDLE, RETAINER MEANS FOR HOLDING THE ROTATABLE HOUSING ON THE SPINDLE, AND CERTAIN TYPES OF ANNULAR RINGS MOUNTED ON SAID TUBULAR HOUSING INCLUDING: (1) A FIRST TYPE BEING MADE OF A RELATIVELY RIGID BUT SLIGHTLY DEPRESSIBLE MATERIAL AND HAVING AN OUTSIDE DIAMETER SUBSTANTIALLY THE SAME AS THE INSIDE DIAMETER OF SAID TUBULAR CORE; (2) A SECOND TYPE BEING MADE OF A RELATIVELY COMPRESSIBLE MATERIAL HAVING A RELATIVELY HIGH COEFFICIENT OF FRICTION AND HAVING AN OUTSIDE DIAMETER SLIGHTLY GREATER THAN THE INSIDE DIAMETER OF SAID TUBULAR CORE; AND (3) A THIRD TYPE BEING MADE OF A MATERIAL CAPABLE OF RADIAL EXPANSION DUE TO CENTRIFUGAL FORCES AND HAVING AN OUTSIDE DIAMETER SLIGHTLY LESS THAN THE INSIDE DIAMETER OF SAID TUBULAR CORE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |