US3200916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ready break loose anti-feedback device
Assignee: Formsprag Co
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Filing: 1963-06-24
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Granted: 1965-08-17
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:10
CPC Classifications
F; F16; F16B; F16B1/00; F16B1/02; F16B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
287 words
A MECHANISM OF THE TYPE DESCRIBED, COMPRISING A PAIR OF RELATIVELY ROTATABLE, RADIALLY SPACED AND COAXIALLY TELESCOPED RACE MEMBERS, ONE OF WHICH IS PROVIDED WITH A CYLINDRICAL RACE SURFACE AND THE OTHER OF WHICH IS PROVIDED WITH A CIRCUMFERENTIAL SERIES OF SPRAG SOCKETS, A SERIES OF CIRCUMFERENTIALLY SPACED SPRAGS TILTABLY MOUNTED IN SAID SOCKETS, SAID SPRAGS ACTING BETWEEN SAID SOCKETS AND SAID RACE SURFACE TO RELEASABLY WEDGE IN ENGAGEMENT AGAINST THE LATTER AND LOCK SAID RACE MEMBERS TOGETHER, AND FORCE MULTIPLYING MEANS TO RELEASE THE SPRAGS FROM SAID WEDGING ENGAGEMENTBY TILTING THE SPRAGS IN FROM SAID COMPRISING AN OPERATED UNIT GUIDED FOR ROTATION RELATIVE TO BOTH OF SAID RACE MEMBERS, SAID UNIT BEING PROVIDED WITH FINGERS ENGAGEABLE WITH THE RESPECTIVE SPRAGS TO TILT THE LATTER IN SAID SOCKETS AND THUS RELEASE THE SPRAGS, SAID FORCE MULTIPLYING MEANS FURTHER COMPRISING AN OPERATING MEMBER HAVING A FIRST OUTER DRIVING MEANS CONNECTING THE SAMD TO SAID OPERATED UNIT, A SECOND OUTER MEANS FOR THE APPLICATION OF FORCE TO THE OPERATING MEMBER, AND A FULCRUMING MEANS CONNECTING THE SAME TO ONE OF SAID RACE MEMBERS INTERMEDIATE SAID RESPECTIVE OUTER MEANS, THE LEVER ARM DISTANCE FROM SAID LAST NAMED FULCRUMING MEANS TO SAID SECOND OUTER MEANS SUBSTANTIALLY EXCEEDING THAT FORM SAID FULCRUMING MEANS TO SAID FIRST OUTER MEANS, THEREBY ESTABLISHING A SUBSTANTIAL MECHANICAL ADVANTAGE IN THE APPLICATION OF TILTING FORCE TO SAID FINGERS, SAID FULCRUMING CONNECTING COMPRISING A TOOTH ON ONE OF SAID OPERATING AND LAST NAMED RACE MEMBERS AND A RECESS ON THE OTHER OF SAID OPERATING AND LAST NAME RACE MEMBERS IN WHICH THE TOOTH IS RECEIVED FROM FULCRUMING ACTION, SAID OPERATING MEMBER AND OTHER RACE MEMBER HAVING MEANS ENABLING A RELATIVE BODILY FLOATING MOVEMENT THEREOF IN SAID FULCRUMING ACTION.
Claim 2
Dependent Claim
287 words
A MECHANISM OF THE TYPE DESCRIBED, COMPRISING A PAIR OF RELATIVELY ROTATABLE, RADIALLY SPACED AND COAXIALLY TELESCOPED RACE MEMBERS, ONE OF WHICH IS PROVIDED WITH A CYLINDRICAL RACE SURFACE AND THE OTHER OF WHICH IS PROVIDED WITH A CIRCUMFERENTIAL SERIES OF SPRAG SOCKETS, A SERIES OF CIRCUMFERENTIALLY SPACED SPRAGS TILTABLY MOUNTED IN SAID SOCKETS, SAID SPRAGS ACTING BETWEEN SAID SOCKETS AND SAID RACE SURFACE TO RELEASABLY WEDGE IN ENGAGEMENT AGAINST THE LATTER AND LOCK SAID RACE MEMBERS TOGETHER, AND FORCE MULTIPLYING MEANS TO RELEASE THE SPRAGS FROM SAID WEDGING ENGAGEMENTBY TILTING THE SPRAGS IN FROM SAID COMPRISING AN OPERATED UNIT GUIDED FOR ROTATION RELATIVE TO BOTH OF SAID RACE MEMBERS, SAID UNIT BEING PROVIDED WITH FINGERS ENGAGEABLE WITH THE RESPECTIVE SPRAGS TO TILT THE LATTER IN SAID SOCKETS AND THUS RELEASE THE SPRAGS, SAID FORCE MULTIPLYING MEANS FURTHER COMPRISING AN OPERATING MEMBER HAVING A FIRST OUTER DRIVING MEANS CONNECTING THE SAMD TO SAID OPERATED UNIT, A SECOND OUTER MEANS FOR THE APPLICATION OF FORCE TO THE OPERATING MEMBER, AND A FULCRUMING MEANS CONNECTING THE SAME TO ONE OF SAID RACE MEMBERS INTERMEDIATE SAID RESPECTIVE OUTER MEANS, THE LEVER ARM DISTANCE FROM SAID LAST NAMED FULCRUMING MEANS TO SAID SECOND OUTER MEANS SUBSTANTIALLY EXCEEDING THAT FORM SAID FULCRUMING MEANS TO SAID FIRST OUTER MEANS, THEREBY ESTABLISHING A SUBSTANTIAL MECHANICAL ADVANTAGE IN THE APPLICATION OF TILTING FORCE TO SAID FINGERS, SAID FULCRUMING CONNECTING COMPRISING A TOOTH ON ONE OF SAID OPERATING AND LAST NAMED RACE MEMBERS AND A RECESS ON THE OTHER OF SAID OPERATING AND LAST NAME RACE MEMBERS IN WHICH THE TOOTH IS RECEIVED FROM FULCRUMING ACTION, SAID OPERATING MEMBER AND OTHER RACE MEMBER HAVING MEANS ENABLING A RELATIVE BODILY FLOATING MOVEMENT THEREOF IN SAID FULCRUMING ACTION.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |