Patent US3237483A successfully refreshed from Google Patents.
US3237483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential for wheel vehicles
Assignee: Caterpillar Inc
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Filing: 1963-04-01
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Granted: 1966-03-01
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Bruce W Kelley
- 👤 Frank E Keske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/28; F16H48/285; F16H48/29; F16H48/06; F16H48/10; F16H2048/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A DIFFERENTIAL COMPRISING A PAIR OF JUXTAPOSED, HELICAL FACE GEARS ARRANGED FOR ROTATION ABOUT AN AXIS, A CARRIER ARRANGED BETWEEN SAID FACE GEARS FOR ROTATION ABOUT SAID AXIS, GEAR MEANS MOUNTED ON SAID CARRIER AND OPERATIVELY MESHING WITH SAID FACE GEARS FOR DIFFERENTIALLY PERMITTING ONE FACE GEAR TO ROTATE FASTER THAN THE OTHER FACE GEAR AND PRELOAD MEANS FOR URGING SAID MESHING FACE GEARS AND GEAR MEANS TOGETHER WITH PREDETERMINED FORCES FOR PROVIDING A PREDETERMINED FRICTIONAL RESISTANCE TO ROTATION OF ONE FACE GEAR RELATIVE TO THE OTHER.
Claim 2
Dependent Claim
87 words
A DIFFERENTIAL COMPRISING A PAIR OF JUXTAPOSED, HELICAL FACE GEARS ARRANGED FOR ROTATION ABOUT AN AXIS, A CARRIER ARRANGED BETWEEN SAID FACE GEARS FOR ROTATION ABOUT SAID AXIS, GEAR MEANS MOUNTED ON SAID CARRIER AND OPERATIVELY MESHING WITH SAID FACE GEARS FOR DIFFERENTIALLY PERMITTING ONE FACE GEAR TO ROTATE FASTER THAN THE OTHER FACE GEAR AND PRELOAD MEANS FOR URGING SAID MESHING FACE GEARS AND GEAR MEANS TOGETHER WITH PREDETERMINED FORCES FOR PROVIDING A PREDETERMINED FRICTIONAL RESISTANCE TO ROTATION OF ONE FACE GEAR RELATIVE TO THE OTHER.
References Cited (Backward Citations)
USRE25500E
Cited
US2070569A
Cited
US2650507A
Cited
US2823559A
Cited
US2898778A
Cited
FR1236945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |