Patent US4193009A successfully refreshed from Google Patents.
US3135522A
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Drill chuck
Assignee: Star Expansion Industries Corp
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Filing: 1961-11-07
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Granted: 1964-06-02
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Expires: 1981-11-07
Abstract
No abstract record available.
Inventors
- 👤 Bell Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:48
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1072; B23B31/1078; B23B31/1079; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17923; Y10T408/00; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A DRILL CHUCK COMPRISING AN ELONGATED CHUCK BODY HAVING AN AXIAL BORE DEFINED THEREIN ADAPTED TO REMOVABLY RECEIVE A FLUTED TWIST DRILL, A SLOT DEFINED IN SAID BODY, SAID SLOT EXTENDING TRANSVERSELY OF SAID BORE FROM THE OUTER SURFACE OF SAID BODY TO SAID BORE AND LYING IN A PLANE WHICH IS DISPOSED AT AN ANGLE RELATIVE TO THE AXIS OF SAID BORE, SAID ANGLE BEING COMPLEMENTARY TO THE DRILL FLUTE, A RELATIVELY FLAT KEY MOVABLY MOUNTED IN SAID SLOT, THE INNER END OF SAID KEY BEING COMPLEMENTARY TO THE DRILL FLUTE, THE OUTER END OF SAID KEY PROJECTING FROM THE CHUCK BODY WHEN THE INNER END THEREOF IS ENGAGED IN THE DRILL FLUTE, AND SPRING MEANS ENCOMPASSING SAID BODY AND ENGAGED WITH SAID OUTER END FOR BIASING SAID KEY INTO SAID SLOT TO ENGAGE THE INNER END OF THE KEY IN THE FLUTE OF A. DRILL MOUNTED IN SAID BORE.
Claim 2
Dependent Claim
151 words
A DRILL CHUCK COMPRISING AN ELONGATED CHUCK BODY HAVING AN AXIAL BORE DEFINED THEREIN ADAPTED TO REMOVABLY RECEIVE A FLUTED TWIST DRILL, A SLOT DEFINED IN SAID BODY, SAID SLOT EXTENDING TRANSVERSELY OF SAID BORE FROM THE OUTER SURFACE OF SAID BODY TO SAID BORE AND LYING IN A PLANE WHICH IS DISPOSED AT AN ANGLE RELATIVE TO THE AXIS OF SAID BORE, SAID ANGLE BEING COMPLEMENTARY TO THE DRILL FLUTE, A RELATIVELY FLAT KEY MOVABLY MOUNTED IN SAID SLOT, THE INNER END OF SAID KEY BEING COMPLEMENTARY TO THE DRILL FLUTE, THE OUTER END OF SAID KEY PROJECTING FROM THE CHUCK BODY WHEN THE INNER END THEREOF IS ENGAGED IN THE DRILL FLUTE, AND SPRING MEANS ENCOMPASSING SAID BODY AND ENGAGED WITH SAID OUTER END FOR BIASING SAID KEY INTO SAID SLOT TO ENGAGE THE INNER END OF THE KEY IN THE FLUTE OF A. DRILL MOUNTED IN SAID BORE.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |