US3108757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mandrel with expansible chucks
Assignee: Individual
•
Filing: 1960-06-30
•
Granted: 1963-10-29
•
Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Williams
- 👤 Charles R Tidland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/243; B65H75/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A MANDREL ADAPTED TO SUPPORT THE INSIDE OF A HOLLOW ROLL CORE COMPRISING AN ELONGATED SHAFT; A FIXED CHUCK SECURED TO THE SHAFT ADJACENT ONE OF ITS ENDS; AND A FLOATING CHUCK AXIALLY SLIDABLE ON SAID SHAFT BUT NONROTATABLE RELATIVE THERETO NEARER THE OTHER END OF THE SHAFT; EACH OF SAID CHUCKS COMPRISING A MOUNTING HAVING WALL PORTIONS DEFINING A RECESS EXTENDING CIRCUMFERENTIALLY ABOUT THE MOUNTING, AN ANNULAR INFLATABLE MEANS SEATED WITHIN SAID RECESS AND OPERABLE ON INFLATION TO ENLARGE RADIALLY AND TO COME INTO CLAMPING ENGAGEMENT WITH THE INSIDE OF A ROLL CORE, AN INNER SHOULDER ON ONE SIDE AND AN OUTER SHOULDER ON THE OTHER SIDE OF SAID INFLATABLE MEANS CONSTRUCTED SNUGLY TO FIT WITHIN THE ROLL CORE, AND AN ANNULAR STOP FLANGE BORDERING THE OUTER MARGIN OF THE OUTER SHOULDER HAVING A DIAMETER LARGER THAN THAT OF THE INSIDE OF THE ROLL CORE.
Claim 2
Dependent Claim
146 words
A MANDREL ADAPTED TO SUPPORT THE INSIDE OF A HOLLOW ROLL CORE COMPRISING AN ELONGATED SHAFT; A FIXED CHUCK SECURED TO THE SHAFT ADJACENT ONE OF ITS ENDS; AND A FLOATING CHUCK AXIALLY SLIDABLE ON SAID SHAFT BUT NONROTATABLE RELATIVE THERETO NEARER THE OTHER END OF THE SHAFT; EACH OF SAID CHUCKS COMPRISING A MOUNTING HAVING WALL PORTIONS DEFINING A RECESS EXTENDING CIRCUMFERENTIALLY ABOUT THE MOUNTING, AN ANNULAR INFLATABLE MEANS SEATED WITHIN SAID RECESS AND OPERABLE ON INFLATION TO ENLARGE RADIALLY AND TO COME INTO CLAMPING ENGAGEMENT WITH THE INSIDE OF A ROLL CORE, AN INNER SHOULDER ON ONE SIDE AND AN OUTER SHOULDER ON THE OTHER SIDE OF SAID INFLATABLE MEANS CONSTRUCTED SNUGLY TO FIT WITHIN THE ROLL CORE, AND AN ANNULAR STOP FLANGE BORDERING THE OUTER MARGIN OF THE OUTER SHOULDER HAVING A DIAMETER LARGER THAN THAT OF THE INSIDE OF THE ROLL CORE.
References Cited (Backward Citations)
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US2145806A
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US2134475A
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US2285966A
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |