Patent US3236544A successfully refreshed from Google Patents.
US3236544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: Otis Engineering Corp
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Filing: 1963-12-02
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Granted: 1966-02-22
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Norman F Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:35
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04; F16L27/06; F16L27/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A COUPLING INCLUDING: AN OUTER ANNULAR MEMBER; AN INNER ANNULAR MEMBER EXTENDING INTO SAID OUTER TUBULAR MEMBER, ONE OF SAID TUBULAR MEMBERS HAVING AN ANNULAR RECESS AND THE OTHER OF SAID MEMBERS HAVING AN ANNULAR FLANGE EXTENDING INTO SAID RECESS, SAID ANNULAR RECESS AND SAID FLANGE WHEN SAID COUPLING MEMBERS ARE IN LONGITUDINAL ALIGNMENT BEING DISPOSED PERPENDICULARLY RELATIVE TO AND ABOUT THE LONGITUDINAL AXIS OF SAID COUPLING, SAID MEMBERS HAVING SURFACES DEFINING SAID RECESS AND SAID FLANGE SPACED FROM ONE ANOTHER; AND AN ANNULAR LOAD MEMBER DISPOSED BETWEEN SAID INNER MEMBER AND SAID OUTER MEMBER ENGAGING SAID SPACED SURFACES OF SAID INNER AND OUTER MEMBERS AND HOLDING SAID INNER AND OUTER MEMBERS IN SPACED RELATION TO ONE ANOTHER AND FOR PIVOTAL MOVEMENT RELATIVE TO ONE ANOTHER, SAID LOAD MEMBER COMPRISING AN ANNULAR HOLLOW MEMBER CIRCUMFERENTIALLY ELASTIC AND CROSS-SECTIONALLY FLEXIBLE AND NON-ELASTIC, SAID LOAD MEMBER BEING FILLED WITH AN INCOMPRESSIBLE FLUID, SAID LOAD MEMBER TRANSMITTING FORCES BETWEEN INNER AND OUTER MEMBERS UNIFORMLY TO ALL AREAS OF THE SURFACES OF SAID INNER AND OUTER MEMBERS ENGAGED BY SAID LOAD MEMBER.
Claim 2
Dependent Claim
178 words
A COUPLING INCLUDING: AN OUTER ANNULAR MEMBER; AN INNER ANNULAR MEMBER EXTENDING INTO SAID OUTER TUBULAR MEMBER, ONE OF SAID TUBULAR MEMBERS HAVING AN ANNULAR RECESS AND THE OTHER OF SAID MEMBERS HAVING AN ANNULAR FLANGE EXTENDING INTO SAID RECESS, SAID ANNULAR RECESS AND SAID FLANGE WHEN SAID COUPLING MEMBERS ARE IN LONGITUDINAL ALIGNMENT BEING DISPOSED PERPENDICULARLY RELATIVE TO AND ABOUT THE LONGITUDINAL AXIS OF SAID COUPLING, SAID MEMBERS HAVING SURFACES DEFINING SAID RECESS AND SAID FLANGE SPACED FROM ONE ANOTHER; AND AN ANNULAR LOAD MEMBER DISPOSED BETWEEN SAID INNER MEMBER AND SAID OUTER MEMBER ENGAGING SAID SPACED SURFACES OF SAID INNER AND OUTER MEMBERS AND HOLDING SAID INNER AND OUTER MEMBERS IN SPACED RELATION TO ONE ANOTHER AND FOR PIVOTAL MOVEMENT RELATIVE TO ONE ANOTHER, SAID LOAD MEMBER COMPRISING AN ANNULAR HOLLOW MEMBER CIRCUMFERENTIALLY ELASTIC AND CROSS-SECTIONALLY FLEXIBLE AND NON-ELASTIC, SAID LOAD MEMBER BEING FILLED WITH AN INCOMPRESSIBLE FLUID, SAID LOAD MEMBER TRANSMITTING FORCES BETWEEN INNER AND OUTER MEMBERS UNIFORMLY TO ALL AREAS OF THE SURFACES OF SAID INNER AND OUTER MEMBERS ENGAGED BY SAID LOAD MEMBER.
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |