Patent US1825520A successfully refreshed from Google Patents.
Patent US3190666A successfully refreshed from Google Patents.
US3190666A
Expired / Lapsed
US
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Holder and jaw inserts comprising the top jaw for a chuck
Assignee: TESAN TOOL Manufacturing CO
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Filing: 1963-08-06
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Granted: 1965-06-22
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Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Testa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:13
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16045; B23B31/1605; B23B31/16054; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A TOP JAW FOR A CHUCK COMPRISING, IN COMBINATION, (A) A HOLDER HAVING FIRST AND SECOND MOUNTING SURFACES LYING IN INSERTING PLANES; (B) AT LEAST ONE OF SAID MOUNTING SURFACES HAVING A GROOVED FORMED IN IT; (C) MEANS FOR SECURING SAID HOLDER ON THE JAW OF A CHUCK SO THAT ONE OF THE HOLDER MOUNTING SURFACES EXTENDS ROUGHLY PERPENDICULAR TO THE CHUCK AXIS AND THE GROOVE FORMED IN ONE OF SAID MOUNTING SURFACES LIES GENERALLY IN A COMMON PLANE WITH THE CHUCK AXIS; (D) A JAW INSERT HAVING A CHUCKING SURFACE AND FIRST AND SECOND MOUNTING SURFACES WHICH MATE WITH THE MOUNTING SURFACES OF SAID HOLDER TO DISPOSE THE CHUCKING SURFACE SO THAT THE HOLDER ACT AS A BACK SUPPORT FOR THE JAW INSERT; (E) ONE OF SAID JAW INSERT MOUNTING SURFACES HAVING A TONGUE EXTENDING ALONG IT WHICH MATES WITH SAID GROOVE; AND, (F) MEANS FOR DETACHABLY SECURING THE JAW INSERT ON THE HOLDER WITH SAID MOUNTING SURFACES AND TONGUE AND GROOVE IN ENGAGEMENT.
Claim 2
Dependent Claim
165 words
A TOP JAW FOR A CHUCK COMPRISING, IN COMBINATION, (A) A HOLDER HAVING FIRST AND SECOND MOUNTING SURFACES LYING IN INSERTING PLANES; (B) AT LEAST ONE OF SAID MOUNTING SURFACES HAVING A GROOVED FORMED IN IT; (C) MEANS FOR SECURING SAID HOLDER ON THE JAW OF A CHUCK SO THAT ONE OF THE HOLDER MOUNTING SURFACES EXTENDS ROUGHLY PERPENDICULAR TO THE CHUCK AXIS AND THE GROOVE FORMED IN ONE OF SAID MOUNTING SURFACES LIES GENERALLY IN A COMMON PLANE WITH THE CHUCK AXIS; (D) A JAW INSERT HAVING A CHUCKING SURFACE AND FIRST AND SECOND MOUNTING SURFACES WHICH MATE WITH THE MOUNTING SURFACES OF SAID HOLDER TO DISPOSE THE CHUCKING SURFACE SO THAT THE HOLDER ACT AS A BACK SUPPORT FOR THE JAW INSERT; (E) ONE OF SAID JAW INSERT MOUNTING SURFACES HAVING A TONGUE EXTENDING ALONG IT WHICH MATES WITH SAID GROOVE; AND, (F) MEANS FOR DETACHABLY SECURING THE JAW INSERT ON THE HOLDER WITH SAID MOUNTING SURFACES AND TONGUE AND GROOVE IN ENGAGEMENT.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |