Patent JPS6455889A successfully refreshed from Google Patents.
Patent US3213991A successfully refreshed from Google Patents.
US3213991A
Expired / Lapsed
US
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Cover assembly for clutch
Assignee: Borg Warner Corp
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Filing: 1962-06-07
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Granted: 1965-10-26
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Richard L Smirl
- 👤 Leo W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:09
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/583; F16D13/585; F16D13/70; F16D13/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A CLUTCH DEVICE HAVING ROTATABLE INPUT AND OUTPUT MEMBERS AND A CLUTCHING MEANS MOVABLE BETWEEN A CLUTCH ENGAGING CONDITION AND A CLUTCH DISENGAGING CONDITION, A COVER ASSEMBLY COMPRISING: A SHEET METAL COVER HAVING A PLURALITY OF FLAT LIPS LYING IN A COMMON PLANE AND A CYLINDRICAL WALL SECTION OF EACH OF SAID LIPS EXTENDING REARWARDLY FROM THE PLANE OF SAID LIPS, SAID COVER PLATE HAVING A GENERALLY ANNULAR REAR WALL INTTEGRALLY CONNECTED WITH EACH OF SAID CYLINDRICAL WALL CONNECTIONS AND BEING COMPRISED OF CONICAL SECTIONS JOINED BY A PLURALITY OF ARCUATE CHANNES EACH HAVING A SHARLPY TURNED RADIUS TRANSVERSE TO THE ARCUATE EXTENT OF THE CHANNEL; A FLEXIBLE DIAPHRAGM HAVING AN OUTER PORTION EFFECTIVE TO IMPART A RESILIENT FORCE AND AN INNER PORTION EFFECTIVE TO BE ACTUATED FOR REDUCING THE RESILIENT FORCE THEREOF AND AN INTERMEDIATE PORTION EFFECTIVE TO BE FULCRUMED; AND FULCRUM MEANS COMPRISING CIRCUMFERENTIALLY SPACED FASTENERS CARRIED BY SAID COVER PLATE, AND A RING MOUNTED ON
Claim 2
Dependent Claim
159 words
IN A CLUTCH DEVICE HAVING ROTATABLE INPUT AND OUTPUT MEMBERS AND A CLUTCHING MEANS MOVABLE BETWEEN A CLUTCH ENGAGING CONDITION AND A CLUTCH DISENGAGING CONDITION, A COVER ASSEMBLY COMPRISING: A SHEET METAL COVER HAVING A PLURALITY OF FLAT LIPS LYING IN A COMMON PLANE AND A CYLINDRICAL WALL SECTION OF EACH OF SAID LIPS EXTENDING REARWARDLY FROM THE PLANE OF SAID LIPS, SAID COVER PLATE HAVING A GENERALLY ANNULAR REAR WALL INTTEGRALLY CONNECTED WITH EACH OF SAID CYLINDRICAL WALL CONNECTIONS AND BEING COMPRISED OF CONICAL SECTIONS JOINED BY A PLURALITY OF ARCUATE CHANNES EACH HAVING A SHARLPY TURNED RADIUS TRANSVERSE TO THE ARCUATE EXTENT OF THE CHANNEL; A FLEXIBLE DIAPHRAGM HAVING AN OUTER PORTION EFFECTIVE TO IMPART A RESILIENT FORCE AND AN INNER PORTION EFFECTIVE TO BE ACTUATED FOR REDUCING THE RESILIENT FORCE THEREOF AND AN INTERMEDIATE PORTION EFFECTIVE TO BE FULCRUMED; AND FULCRUM MEANS COMPRISING CIRCUMFERENTIALLY SPACED FASTENERS CARRIED BY SAID COVER PLATE, AND A RING MOUNTED ON
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |