US3327563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential mechanism
Assignee: Borg Warner Corp
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Filing: 1965-07-29
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Granted: 1967-06-27
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Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jack F Engle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:20
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H2048/085; F16H48/38; F16H2048/382
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A LIMITED SLIP DIFFERENTIAL MECHANISM COMPRISING A DIFFERENTIAL CASING ADAPTED TO RECEIVE AN INPUT TORQUE FOR TRANSMISSION TO A PAIR OF COAXIALLY ALIGNED RELATIVELY ROTATABLE OUTPUT SHAFTS, SAID CASING INCLUDING A GENERALLY CYLINDRICAL INTERNAL PILOT RECESS TERMINATING IN AN AXIAL STOP SURFACE EXTENDING RADIALLY INWARDLY THEREFORM; AT LEAST ONE REMOVABLE INSERT DISPOSED INTERNALLY OF SAID CASING AND SECURED THERETO FOR ROTATION THEREWITH, SAID INSERT DEFINING A CONICAL SEAT SURFACE AND INCLUDING A FLANGE ADAJACENT THE CONVERGENT END OF SAID CONICAL SEAT SURFACE EXTENDING GENERALLY RADIALLY OUTWARDLY DEFINING A GENERALLY CYLINDRICAL PILOT SURFACE DISPOSED WITHIN SAID RECESS TO RADIALLY POSITION SAID INSERT WITH RESPECT TO SAID CASING, SAID FLANGE HAVING A RADIAL SURFACE DISPOSED IN CONTACTING RELATION TO SAID AXIAL STOP SURFACE TO AXIALLY POSITION SAID INSERT WITH RESPECT TO SAID CASING; AT LEAST ONE CONICAL CLUTCH MEMBER DISPOSED WITHIN SAID CASING AND ADAPTED TO BE CONNECTED TO ONE OF THE OUTPUT SHAFTS; BIASING MEANS URGING SAID CLUTCH MEMBER INTO A PREDETERMINED FRICTIONAL ENGAGEMENT WITH SAID CONICAL SEAT SURFACE; AND A BEVEL GEAR SYSTEM INCLUDING AT LEAST ONE PINION GEAR AND AT LEAST ONE SIDE GEAR WITHIN SAID CASING ADAPTED TO BE OPERATIVELY CONNECTED TO THE OUTPUT SHAFTS FOR TRANSMISSION OF ROTATIONAL EFFORT THERETO AND TO APPLY AN AXIAL FORCE UPON SAID CLUTCH MEMBER IN A DIRECTION TO INCREASE SAID FRICTIONAL ENGAGEMENT.
Claim 2
Dependent Claim
221 words
A LIMITED SLIP DIFFERENTIAL MECHANISM COMPRISING A DIFFERENTIAL CASING ADAPTED TO RECEIVE AN INPUT TORQUE FOR TRANSMISSION TO A PAIR OF COAXIALLY ALIGNED RELATIVELY ROTATABLE OUTPUT SHAFTS, SAID CASING INCLUDING A GENERALLY CYLINDRICAL INTERNAL PILOT RECESS TERMINATING IN AN AXIAL STOP SURFACE EXTENDING RADIALLY INWARDLY THEREFORM; AT LEAST ONE REMOVABLE INSERT DISPOSED INTERNALLY OF SAID CASING AND SECURED THERETO FOR ROTATION THEREWITH, SAID INSERT DEFINING A CONICAL SEAT SURFACE AND INCLUDING A FLANGE ADAJACENT THE CONVERGENT END OF SAID CONICAL SEAT SURFACE EXTENDING GENERALLY RADIALLY OUTWARDLY DEFINING A GENERALLY CYLINDRICAL PILOT SURFACE DISPOSED WITHIN SAID RECESS TO RADIALLY POSITION SAID INSERT WITH RESPECT TO SAID CASING, SAID FLANGE HAVING A RADIAL SURFACE DISPOSED IN CONTACTING RELATION TO SAID AXIAL STOP SURFACE TO AXIALLY POSITION SAID INSERT WITH RESPECT TO SAID CASING; AT LEAST ONE CONICAL CLUTCH MEMBER DISPOSED WITHIN SAID CASING AND ADAPTED TO BE CONNECTED TO ONE OF THE OUTPUT SHAFTS; BIASING MEANS URGING SAID CLUTCH MEMBER INTO A PREDETERMINED FRICTIONAL ENGAGEMENT WITH SAID CONICAL SEAT SURFACE; AND A BEVEL GEAR SYSTEM INCLUDING AT LEAST ONE PINION GEAR AND AT LEAST ONE SIDE GEAR WITHIN SAID CASING ADAPTED TO BE OPERATIVELY CONNECTED TO THE OUTPUT SHAFTS FOR TRANSMISSION OF ROTATIONAL EFFORT THERETO AND TO APPLY AN AXIAL FORCE UPON SAID CLUTCH MEMBER IN A DIRECTION TO INCREASE SAID FRICTIONAL ENGAGEMENT.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |