Patent US3536930A successfully refreshed from Google Patents.
Patent US3142492A successfully refreshed from Google Patents.
US3142492A
Expired / Lapsed
US
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Chuck
Assignee: Skinner Precision Industries Inc
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Filing: 1962-09-11
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Granted: 1964-07-28
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Howard C Multer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:25
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16233; B23B31/16237; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A CHUCK COMPRISING A BODY HAVING A PLURALITY OF RADIALLY EXTENDING GUIDEWAYS, A PLURALITY OF JAWS, RESPECTIVELY, MOUNTED IN THE GUIDEWAYS FOR RADIAL SLIDABLE MOVEMENT, AN ACTUATOR FOR MOVING THE JAWS AND LOCATED INWARDLY OF THE JAWS, AND CONNECTING MEANS BETWEEN THE ACTUATOR AND THE JAWS; A JAW LIMIT MEANS COMPRISING A RECESS IN EACH OF THE JAWS AND PROVIDING A STOP SURFACE, A PLURALITY OF STOP SCREWS LOCATED ENTIRELY WITHIN THE BODY AND HAVING PORTIONS EXTENDING INTO THE RECESSES, RESPECTIVELY, AND SPACED FROM THE STOP SURFACES THEREOF DURING NORMAL OPERATION OF THE JAWS, SAID STOP PORTIONS ADAPTED TO ENGAGE THE STOP SURFACES TO PREVENT RADIAL ESCAPE OF THE JAWS FROM THE CHUCK BODY IN THE EVENT OF BREAKAGE OF SAID CONNECTING MEANS.
Claim 2
Dependent Claim
124 words
IN A CHUCK COMPRISING A BODY HAVING A PLURALITY OF RADIALLY EXTENDING GUIDEWAYS, A PLURALITY OF JAWS, RESPECTIVELY, MOUNTED IN THE GUIDEWAYS FOR RADIAL SLIDABLE MOVEMENT, AN ACTUATOR FOR MOVING THE JAWS AND LOCATED INWARDLY OF THE JAWS, AND CONNECTING MEANS BETWEEN THE ACTUATOR AND THE JAWS; A JAW LIMIT MEANS COMPRISING A RECESS IN EACH OF THE JAWS AND PROVIDING A STOP SURFACE, A PLURALITY OF STOP SCREWS LOCATED ENTIRELY WITHIN THE BODY AND HAVING PORTIONS EXTENDING INTO THE RECESSES, RESPECTIVELY, AND SPACED FROM THE STOP SURFACES THEREOF DURING NORMAL OPERATION OF THE JAWS, SAID STOP PORTIONS ADAPTED TO ENGAGE THE STOP SURFACES TO PREVENT RADIAL ESCAPE OF THE JAWS FROM THE CHUCK BODY IN THE EVENT OF BREAKAGE OF SAID CONNECTING MEANS.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |