Patent US1767997A successfully refreshed from Google Patents.
US3090633A
Expired / Lapsed
US
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Index mechanism for chucks
Assignee: Individual
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Filing: 1962-04-26
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Granted: 1963-05-21
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Expires: 1982-04-26
Abstract
No abstract record available.
Inventors
- 👤 Farnsworth Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:46
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/021; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/207; B23B31/2073; Y; Y10; Y10T; Y10T279/00; Y10T279/13; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T409/308848; Y10T74/00; Y10T74/14; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN INDEX MECHANISM FOR A CHUCK OF THE TYPE HAVING A HOUSING AND A SPINDLE ASSEMBLY ROTATABLY MOUNTED IN SAID HOUSING AND ADAPTED TO GRIP A WORKPIECE FOR ROTATION THEREWITH, SAID MECHANISM COMPRISING; A GENERALLY CYLINDRICAL MEMBER SECURED TO SAID SPINDLE ASSEMBLY, A SERIES OF BALLS RIGIDLY MOUNTED CIRCUMFERENTIALLY AROUND SAID MEMBER WITH ADJACENT BALLS ABUTTING AGAINST ONE ANOTHER TO FORM A GENERALLY V-SHAPED SPACE BETWEEN EACH PAIR OF ADJACENT BALLS, AND A PLUNGER SHIFTABLY MOUNTED ON SAID HOUSING AND HAVING A PORTION INSERTABLE TIGHTLY INTO SAID SPACE BETWEEN ADJACENT BALLS AND INTO ENGAGEMENT THEREWITH TO THEREBY PREVENT ROTATION OF SAID MECHANISM AND ASSEMBLY RELATIVE TO SAID HOUSING.
Claim 2
Dependent Claim
108 words
AN INDEX MECHANISM FOR A CHUCK OF THE TYPE HAVING A HOUSING AND A SPINDLE ASSEMBLY ROTATABLY MOUNTED IN SAID HOUSING AND ADAPTED TO GRIP A WORKPIECE FOR ROTATION THEREWITH, SAID MECHANISM COMPRISING; A GENERALLY CYLINDRICAL MEMBER SECURED TO SAID SPINDLE ASSEMBLY, A SERIES OF BALLS RIGIDLY MOUNTED CIRCUMFERENTIALLY AROUND SAID MEMBER WITH ADJACENT BALLS ABUTTING AGAINST ONE ANOTHER TO FORM A GENERALLY V-SHAPED SPACE BETWEEN EACH PAIR OF ADJACENT BALLS, AND A PLUNGER SHIFTABLY MOUNTED ON SAID HOUSING AND HAVING A PORTION INSERTABLE TIGHTLY INTO SAID SPACE BETWEEN ADJACENT BALLS AND INTO ENGAGEMENT THEREWITH TO THEREBY PREVENT ROTATION OF SAID MECHANISM AND ASSEMBLY RELATIVE TO SAID HOUSING.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |