Patent US3138012A successfully refreshed from Google Patents.
US3138012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driven plate assembly
Assignee: Borg Warner Corp
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Filing: 1962-08-27
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Granted: 1964-06-23
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Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Richard L Smirl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:33
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/68; F16D13/686
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
IN A FRICTION DEVICE OF THE ANNULAR DISC TYPE, A TORSIONAL VIBRATION DAMPENER COMPRISING: DRIVE AND DRIVEN METALLIC PLATES IN ADJACENT SPACED RELATIONSHIP WITH SIDES THEREOF FACING EACH OTHER, AN ANNULAR RUBBER RING DISPOSED THEREBETWEEN AND HAVING OPPOSITE SIDES BONDED TO THE SIDES OF SAID PLATES FACING EACH OTHER, SAID BONDING BEING SUBSTANTIALLY THROUGHOUT THE SIDES OF SAID RING, SAID RING HAVING A THICKNESS WHICH INCREASES RADIALLY OUTWARDLY ALONG A CURVE WHICH IS GENERALLY ASYMPTOTIC TO A CONE GENERALLY REPRESENTING EQUAL SHEAR DISTRIBUTION THROUGHOUT THE RADIAL EXTENT OF SAID RING.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |