Patent US4165224A successfully refreshed from Google Patents.
Patent US3292939A successfully refreshed from Google Patents.
US3292939A
Expired / Lapsed
US
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Work holding device
Assignee: Individual
•
Filing: 1964-10-21
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Granted: 1966-12-20
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Expires: 1984-10-21
Abstract
No abstract record available.
Inventors
- 👤 Karl H Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:29
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/207; B23B31/2072; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17487; Y10T279/17521; Y10T279/17666; Y10T279/17692; Y10T279/17743
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A WORK HOLDING CHUCK A RETAINING SLEEVE HAVING SMALL AND LARGE DIAMETER SECTIONS INTERCONNECTED BY AN INTERMEDIATE WALL SECTION THEREBETWEEN WHICH IS FORMED WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED APERTURES THERETHROUGH, AN ACTUATING SLEEVE HAVING TWO DIFFERENT OUTSIDE DIAMETER SECTIONS AND A TAPERED WALL SECTION THEREBETWEEN WHICH ACTUATING SLEEVE IS SLIDABLY MOUNTED IN THE LARGE AND SMALL DIAMETER SECTIONS OF SAID RETAINING SLEEVE, AN ADJUSTING RING ONE SAID SMALL DIAMETER SECTION OF SAID RETAINING SLEEVE AND ADJUSTABLY POSITONED THEREALONG, A PLURALITY OF FORCE TRANSMITTING MEMBERS IN THE APERTURES IN SAID RETAINING SLEEVE AND ADAPTED TO ABUT SAID ADJUSTING RING AND THE TAPERED SECTION OF SAID ACTUATING SLEEVE, AND AN AXIALLY SLIDABLE LOCKING RING HAVING A CAM SURFACE FORMED ON THE INNER WALL THEREOF ADAPTED FOR ENGAGEMENT WITH SAID FORCE TRANSMITTING MEMBERS FOR URGING THE SAME INTO WEDGING ENGAGEMENT BETWEEN SAID ADJUSTING RING AND TAPERED SECTION OF SAID ACTUATING SLEEVE FOR SLIDE ACTUATION OF SAID ACTUATING SLEEVE WITHIN SAID RETAINING SLEEVE.
Claim 2
Dependent Claim
161 words
IN A WORK HOLDING CHUCK A RETAINING SLEEVE HAVING SMALL AND LARGE DIAMETER SECTIONS INTERCONNECTED BY AN INTERMEDIATE WALL SECTION THEREBETWEEN WHICH IS FORMED WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED APERTURES THERETHROUGH, AN ACTUATING SLEEVE HAVING TWO DIFFERENT OUTSIDE DIAMETER SECTIONS AND A TAPERED WALL SECTION THEREBETWEEN WHICH ACTUATING SLEEVE IS SLIDABLY MOUNTED IN THE LARGE AND SMALL DIAMETER SECTIONS OF SAID RETAINING SLEEVE, AN ADJUSTING RING ONE SAID SMALL DIAMETER SECTION OF SAID RETAINING SLEEVE AND ADJUSTABLY POSITONED THEREALONG, A PLURALITY OF FORCE TRANSMITTING MEMBERS IN THE APERTURES IN SAID RETAINING SLEEVE AND ADAPTED TO ABUT SAID ADJUSTING RING AND THE TAPERED SECTION OF SAID ACTUATING SLEEVE, AND AN AXIALLY SLIDABLE LOCKING RING HAVING A CAM SURFACE FORMED ON THE INNER WALL THEREOF ADAPTED FOR ENGAGEMENT WITH SAID FORCE TRANSMITTING MEMBERS FOR URGING THE SAME INTO WEDGING ENGAGEMENT BETWEEN SAID ADJUSTING RING AND TAPERED SECTION OF SAID ACTUATING SLEEVE FOR SLIDE ACTUATION OF SAID ACTUATING SLEEVE WITHIN SAID RETAINING SLEEVE.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |