US3345831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible couplings
Assignee: Wellman Bibby Co Ltd
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Filing: 1965-07-02
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Granted: 1967-10-10
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Boole Reginald Edward George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:01
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/64; F16D3/68; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/124; F16F15/1245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A FLEXIBLE COUPLING COMPRISING A DRIVING MEMBER AND A DRIVEN MEMBER CONCENTRIC THEREWITH SAID DRIVING AND DRIVEN MEMBERS EACH HAVING A PLURALITY OF GENERALLY RADIALLY EXTENDING BLADES WITH ONE BLADE ON ONE MEMBER EXTENDING BETWEEN A PAIR OF BLADES ON THE OTHER MEMBERS SO AS TO FORM A CELL BETWEEN EACH PAIR OF ADJACENT BLADES AND PARTS OF THE CONCENTRIC MEMBERS, AND AN INTEGRAL NON-METALLIC RESILIENT COUPLING ELEMENT IN EACH CELL EACH COUPLING ELEMENT HAVING AT LEAST TWO LIMBS AND A CONNECTING PORTION, THE LIMBS ENGAGING OPPOSITE WALLS OF THE CELL AND THE LIMBS AND CONNECTING PORTION BEING SO SHAPED THAT UPON THE APPLICATION OF TORQUE TO THE COUPLING THE LIMBS, IN AT LEAST ONE OF SAID CELLS, ARE INITIALLY DEFLECTED BY BENDING WITH RESPECT TO THE CONNECTING PORTION SO AS PROGRESSIVELY TO INCREASE THE AREA OF SURFACE CONTACT BETWEEN THE LIMBS AND THE CONNECTING PORTION, WHEREBY THE LIMBS AND THE CONNECTING PORTION ARE SUBJECTED TO AN INCREASING RATE OF COMPRESSION AND A DECREASING RATE OF BENDING DEFLECTION AS THE APPLIED TORQUE INCREASES.
Claim 2
Dependent Claim
173 words
A FLEXIBLE COUPLING COMPRISING A DRIVING MEMBER AND A DRIVEN MEMBER CONCENTRIC THEREWITH SAID DRIVING AND DRIVEN MEMBERS EACH HAVING A PLURALITY OF GENERALLY RADIALLY EXTENDING BLADES WITH ONE BLADE ON ONE MEMBER EXTENDING BETWEEN A PAIR OF BLADES ON THE OTHER MEMBERS SO AS TO FORM A CELL BETWEEN EACH PAIR OF ADJACENT BLADES AND PARTS OF THE CONCENTRIC MEMBERS, AND AN INTEGRAL NON-METALLIC RESILIENT COUPLING ELEMENT IN EACH CELL EACH COUPLING ELEMENT HAVING AT LEAST TWO LIMBS AND A CONNECTING PORTION, THE LIMBS ENGAGING OPPOSITE WALLS OF THE CELL AND THE LIMBS AND CONNECTING PORTION BEING SO SHAPED THAT UPON THE APPLICATION OF TORQUE TO THE COUPLING THE LIMBS, IN AT LEAST ONE OF SAID CELLS, ARE INITIALLY DEFLECTED BY BENDING WITH RESPECT TO THE CONNECTING PORTION SO AS PROGRESSIVELY TO INCREASE THE AREA OF SURFACE CONTACT BETWEEN THE LIMBS AND THE CONNECTING PORTION, WHEREBY THE LIMBS AND THE CONNECTING PORTION ARE SUBJECTED TO AN INCREASING RATE OF COMPRESSION AND A DECREASING RATE OF BENDING DEFLECTION AS THE APPLIED TORQUE INCREASES.
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |