Patent US3313385A successfully refreshed from Google Patents.
US3313385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction clutch
Assignee: Daimler Benz AG
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Filing: 1965-06-28
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Granted: 1967-04-11
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Hans-Joachim M Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:09
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A FRICTION COUPLING, COMPRISING FIRST AND SECOND MEMBERS ROTATABLY MOUNTED WITH RESPECT TO EACH OTHER ABOUT AN AXIS; A FIRST FRICTION PLATE MOUNTED FOR ROTATION WITH SAID FIRST MEMBER AND MOUNTED FOR LIMITED RELATIVE AXIAL MOVEMENT WITH RESPECT TO SAID FIRST MEMBER; A TORQUE TRANSMITTING ELEMENT MOUNTED FOR ROTATION WITH SAID SECOND MEMBER; MEANS FOR MOUNTING SAID TORQUE TRANSMITTING ELEMENT AND SAID FRICTION PLATE FOR RELATIVE AXIAL MOVEMENT INTO AND OUT OF ENGAGEMENT; POWER ACTUATING MEANS FOR SELECTIVELY MOVING SAID TORQUE TRANSMITTING ELEMENT AND SAID FRICTION PLATE INTO AND OUT OF ENGAGEMENT; SAID FIRST MEMBER HAVING AN AXIAL ANNULAR ABUTMENT SHOULDER; AN AXIALLY UNDULATED ANNULAR DISC SPRING MEANS MOUNTED AXIALLY BETWEEN SAID ABUTMENT
Claim 2
Dependent Claim
113 words
A FRICTION COUPLING, COMPRISING FIRST AND SECOND MEMBERS ROTATABLY MOUNTED WITH RESPECT TO EACH OTHER ABOUT AN AXIS; A FIRST FRICTION PLATE MOUNTED FOR ROTATION WITH SAID FIRST MEMBER AND MOUNTED FOR LIMITED RELATIVE AXIAL MOVEMENT WITH RESPECT TO SAID FIRST MEMBER; A TORQUE TRANSMITTING ELEMENT MOUNTED FOR ROTATION WITH SAID SECOND MEMBER; MEANS FOR MOUNTING SAID TORQUE TRANSMITTING ELEMENT AND SAID FRICTION PLATE FOR RELATIVE AXIAL MOVEMENT INTO AND OUT OF ENGAGEMENT; POWER ACTUATING MEANS FOR SELECTIVELY MOVING SAID TORQUE TRANSMITTING ELEMENT AND SAID FRICTION PLATE INTO AND OUT OF ENGAGEMENT; SAID FIRST MEMBER HAVING AN AXIAL ANNULAR ABUTMENT SHOULDER; AN AXIALLY UNDULATED ANNULAR DISC SPRING MEANS MOUNTED AXIALLY BETWEEN SAID ABUTMENT
References Cited (Backward Citations)
US3245508A
Cited
US2968381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |