Patent US3197002A successfully refreshed from Google Patents.
US3197002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two torque clutch
Assignee: International Business Machines Corp
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Filing: 1962-09-14
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Granted: 1965-07-27
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Leon M Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:29
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A CLUTCH MECHANISM, COMPRISING: A COUPLING SPRING; A DRIVING MEMBER, SAID MEMBER BEING POSITIONED IN FRICTIONAL ENGAGEMENT WITH SAID SPRING; A DRIVEN MEMBER, SAID MEMBER BEING POSITIONED IN FRICTIONAL ENGAGEMENT WITH SAID SPRING; MEANS FOR ROTATING SAID DRIVING MEMBER TO THEREBY EFFECT ROTATION OF SAID DRIVEN MEMBER THROUGH SAID SPRING AT A PARTICULAR TORQUE LEVEL; AUXILIARY MEANS, SAID AUXILIARY MEANS ASSUMING EITHER AN INACTIVE FREE RUNNING RELATIONSHIP OR AN ACTIVE FORCE TRANSMITTING RELATIONSHIP WITH RESPECT TO SAID SPRING; AND SELECTIVELY OPERABLE ENGAGING MEANS FOR DIRECTLY COUPLING SAID AUXILIARY MEANS BETWEEN ONE OF SAID MEMBERS AND SAID SPRING SO THAT A DIRECT DRIVE IS ESTABLISHED BETWEEN SAID ONE MEMBER AND SAID SPRING, AND A TORQUE LEVEL IS THEREBY ESTABLISHED WHICH IS DIFFERENT FROM SAID PARTICULAR TORQUE LEVEL.
Claim 2
Dependent Claim
126 words
A CLUTCH MECHANISM, COMPRISING: A COUPLING SPRING; A DRIVING MEMBER, SAID MEMBER BEING POSITIONED IN FRICTIONAL ENGAGEMENT WITH SAID SPRING; A DRIVEN MEMBER, SAID MEMBER BEING POSITIONED IN FRICTIONAL ENGAGEMENT WITH SAID SPRING; MEANS FOR ROTATING SAID DRIVING MEMBER TO THEREBY EFFECT ROTATION OF SAID DRIVEN MEMBER THROUGH SAID SPRING AT A PARTICULAR TORQUE LEVEL; AUXILIARY MEANS, SAID AUXILIARY MEANS ASSUMING EITHER AN INACTIVE FREE RUNNING RELATIONSHIP OR AN ACTIVE FORCE TRANSMITTING RELATIONSHIP WITH RESPECT TO SAID SPRING; AND SELECTIVELY OPERABLE ENGAGING MEANS FOR DIRECTLY COUPLING SAID AUXILIARY MEANS BETWEEN ONE OF SAID MEMBERS AND SAID SPRING SO THAT A DIRECT DRIVE IS ESTABLISHED BETWEEN SAID ONE MEMBER AND SAID SPRING, AND A TORQUE LEVEL IS THEREBY ESTABLISHED WHICH IS DIFFERENT FROM SAID PARTICULAR TORQUE LEVEL.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |