US3103144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collet clamp for machine tools
Assignee: GA Gray Co
•
Filing: 1960-05-03
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Granted: 1963-09-10
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Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 John M Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:22
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/10; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241; Y10T279/1249; Y10T279/1266; Y10T408/00; Y10T408/94; Y10T408/95; Y10T408/953; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309576; Y10T409/309912; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A MACHINE TOOL HAVING A SPINDLE, AND A DRIVE SLEEVE THROUGH WHICH SAID SPINDLE MAY BE FED AXIALLY, AND BY MEANS OF WHICH IT MAY BE ROTATED, SAID SLEEVE HAVING AN INTERNALLY TAPERED PORTION; AN ANNULAR TAPERED COLLET BETWEEN SAID SPINDLE AND DRIVE SLEEVE, SAID DRIVE SLEEVE HAVING AN ANNULAR GROOVE OPENING TOWARD THE WIDER END OF SAID COLLET AND CONSTITUTING AN ANNULAR CYLINDER, AN ANNULAR PISTON IN SAID ANNULAR CYLINDER, A FLANGED ANNULAR RESILIENT WASHER BEHIND SAID ANNULAR PISTON, AND MEANS FOR APPLYING FLUID PRESSURE AGAINST SAID ANNULAR WASHER TO ACTUATE SAID PISTON, AND THUS TO MOVE SAID COLLET AXIALLY, WHEREBY SAID TAPERED COLLET COOPERATES WITH SAID TAPERED PORTION OF SAID SLEEVE, TO TAKE UP PLAY BETWEEN SAID DRIVE SLEEVE AND SPINDLE.
Claim 2
Dependent Claim
124 words
IN A MACHINE TOOL HAVING A SPINDLE, AND A DRIVE SLEEVE THROUGH WHICH SAID SPINDLE MAY BE FED AXIALLY, AND BY MEANS OF WHICH IT MAY BE ROTATED, SAID SLEEVE HAVING AN INTERNALLY TAPERED PORTION; AN ANNULAR TAPERED COLLET BETWEEN SAID SPINDLE AND DRIVE SLEEVE, SAID DRIVE SLEEVE HAVING AN ANNULAR GROOVE OPENING TOWARD THE WIDER END OF SAID COLLET AND CONSTITUTING AN ANNULAR CYLINDER, AN ANNULAR PISTON IN SAID ANNULAR CYLINDER, A FLANGED ANNULAR RESILIENT WASHER BEHIND SAID ANNULAR PISTON, AND MEANS FOR APPLYING FLUID PRESSURE AGAINST SAID ANNULAR WASHER TO ACTUATE SAID PISTON, AND THUS TO MOVE SAID COLLET AXIALLY, WHEREBY SAID TAPERED COLLET COOPERATES WITH SAID TAPERED PORTION OF SAID SLEEVE, TO TAKE UP PLAY BETWEEN SAID DRIVE SLEEVE AND SPINDLE.
References Cited (Backward Citations)
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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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |