Patent US3392985A successfully refreshed from Google Patents.
US3392985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chucks
Assignee: INTERTEC LE QUINTIN A CORP OF FRANCE Ste
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Filing: 1966-05-09
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Granted: 1968-07-16
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Justin H Swarbrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:36
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/204; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241; Y10T279/1249; Y10T279/1258
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A MACHINE TOOL APPARATUS FOR GRIPPING A CYLINDRICAL OBJECT COMPRISING AN EXPANDED SOCKET, A PRESSURE CHAMBER ONE WALL OF WHICH IS DEFINED BY SAID SOCKET, A SPLIT SLEEVE MOVABLE AXIALLY WITHIN SAID SOCKET, MEANS TO APPLY AND RELEASE PRESSURE TO SAID CHAMBER SO AS TO CAUSE SAID SOCKET TO RESPECTIVELY EXPAND AND CONTRACT AND MEANS TO CAUSE SAID SLEEVE TO MOVE AXIALLY WHILE SAID SOCKET IS EXPANDED SO THAT WHEN THE SOCKET CONTRACTS PRESSURE IS APPLIED RADICALLY INWARDS ON SAID CYLINDRICAL OBJECT WHICH HAS BEEN INSERTED IN SAID SLEEVE.
Claim 2
Dependent Claim
90 words
IN A MACHINE TOOL APPARATUS FOR GRIPPING A CYLINDRICAL OBJECT COMPRISING AN EXPANDED SOCKET, A PRESSURE CHAMBER ONE WALL OF WHICH IS DEFINED BY SAID SOCKET, A SPLIT SLEEVE MOVABLE AXIALLY WITHIN SAID SOCKET, MEANS TO APPLY AND RELEASE PRESSURE TO SAID CHAMBER SO AS TO CAUSE SAID SOCKET TO RESPECTIVELY EXPAND AND CONTRACT AND MEANS TO CAUSE SAID SLEEVE TO MOVE AXIALLY WHILE SAID SOCKET IS EXPANDED SO THAT WHEN THE SOCKET CONTRACTS PRESSURE IS APPLIED RADICALLY INWARDS ON SAID CYLINDRICAL OBJECT WHICH HAS BEEN INSERTED IN SAID 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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |