US3119247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limited torque tool
Assignee: Torque Controls Inc
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Filing: 1961-09-22
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Granted: 1964-01-28
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Grabovac Bosko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:31
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/142; B25B23/1422; B25B23/1427
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
IN A TORQUE-LIMITING TOOL, THE COMBINATION OF: A DRIVE MEMBER IN THE FORM OF A CYLINDRICAL MEMBER; A PLURALITY OF BALLS; MEANS UNITARY WITH THE DRIVE MEMBER TO ENGAGE SAID BALLS AND TO SEAT SAID BALLS WITH LEADING PORTIONS OF THE BALLS EXTENDING INTO A PLANE PERPENDICULAR TO THE AXIS OF THE CYLINDRICAL MEMBER AND WITH FREEDOM FOR THE BALLS TO RETRACT FROM THEIR SEATED POSITIONS; SPRING MEANS URGING SAID BALLS TOWARDS THEIR SEATED POSITIONS; A DRIVEN MEMBER JOURNALED INSIDE SAID DRIVE MEMBER FOR ROTATION COAXIALLY THEREOF; AND A PIN CARRIED BY SAID DRIVEN MEMBER DIAMETRICALLY THEREOF FOR ROTATION IN SAID PLANE WHEREBY THE PIN NORMALLY ABUTS AT LEAST ONE OF SAID BALLS FOR TORQUE TRANSMISSION FROM THE DRIVE MEMBER TO THE DRIVEN MEMBER AND THE PIN RETRACTS THE BALLS BY CAM ACTION TO PERMIT RELATIVE ROTATION BETWEEN THE DRIVE MEMBER AND THE DRIVEN MEMBER WHEN THE TORQUE EXCEEDS A PREDETERMINED MAGNITUDE.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |