US3308685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gearing device having a self-contained clutch therein
Assignee: Dana Inc
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Filing: 1965-01-13
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Granted: 1967-03-14
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Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Richard J Wojcikowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:07
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/38; F16H2048/382
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
IN A DIFFERENTIAL TRANSMISSION UNIT THE COMBINATION COMPRISING (A) A ROTATABLE CASING, (B) SHAFT MEANS DRIVINGLY CONNECTED TO SAID CASING AND EXTENDING INWARDLY THEREOF, (C) A PAIR OF COMPENSATING GEARS ROTATABLY MOUNTED ON SAID SHAFT MEANS, (D) A PAIR OF SIDE GEARS ROTATABLY MOUNTED IN SAID CASING AND EACH BEING IN MESHING ENGAGEMENT WITH SAID COMPENSATING GEARS, (E) A UNITARY SELF-CONTAINED CLUTCH MEANS ASSOCIATED WITH AT LEAST ONE OF SAID SIDE GEARS FOR FRICTIONALLY CONNECTING SAID SIDE GEAR TO SAID CASING, SAID UNITARY SELF-CONTAINED MEANS COMPRISING (1) A FIRST AND A SECOND ANNULAR AND RADIALLY EXTENDING FRICTION SURFACE MEMBER DISPOSED IN AN AXIAL SIDE BY SIDE COOPERATIVE RELATIONSHIP WITH EACH OTHER, (2) AN ANNULAR RESILIENT MEMBER BEING AXIALLY DEFORMED AND AXIALLY COMPRESSED AND DISPOSED IN AN AXIAL SIDE BY SIDE RELATIONSHIP WITH ONE OF SAID FIRST AND SECOND MEMBERS AND RESILIENTLY PRESSING SAID FIRST AND SECOND MEMBERS INTO FRICTIONAL ENGAGEMENT, AND (3) A PAIR OF CLUTCH PACK FORMING MEANS FORMED SEPARATELY FROM AND AXIALLY MOVABLE RELATIVE TO SAID CASING AND SAID GEARS,
Claim 2
Dependent Claim
172 words
IN A DIFFERENTIAL TRANSMISSION UNIT THE COMBINATION COMPRISING (A) A ROTATABLE CASING, (B) SHAFT MEANS DRIVINGLY CONNECTED TO SAID CASING AND EXTENDING INWARDLY THEREOF, (C) A PAIR OF COMPENSATING GEARS ROTATABLY MOUNTED ON SAID SHAFT MEANS, (D) A PAIR OF SIDE GEARS ROTATABLY MOUNTED IN SAID CASING AND EACH BEING IN MESHING ENGAGEMENT WITH SAID COMPENSATING GEARS, (E) A UNITARY SELF-CONTAINED CLUTCH MEANS ASSOCIATED WITH AT LEAST ONE OF SAID SIDE GEARS FOR FRICTIONALLY CONNECTING SAID SIDE GEAR TO SAID CASING, SAID UNITARY SELF-CONTAINED MEANS COMPRISING (1) A FIRST AND A SECOND ANNULAR AND RADIALLY EXTENDING FRICTION SURFACE MEMBER DISPOSED IN AN AXIAL SIDE BY SIDE COOPERATIVE RELATIONSHIP WITH EACH OTHER, (2) AN ANNULAR RESILIENT MEMBER BEING AXIALLY DEFORMED AND AXIALLY COMPRESSED AND DISPOSED IN AN AXIAL SIDE BY SIDE RELATIONSHIP WITH ONE OF SAID FIRST AND SECOND MEMBERS AND RESILIENTLY PRESSING SAID FIRST AND SECOND MEMBERS INTO FRICTIONAL ENGAGEMENT, AND (3) A PAIR OF CLUTCH PACK FORMING MEANS FORMED SEPARATELY FROM AND AXIALLY MOVABLE RELATIVE TO SAID CASING AND SAID GEARS,
References Cited (Backward Citations)
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |