US3343429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limited differential mechanism
Assignee: Doosan Bobcat North America Inc
•
Filing: 1965-12-27
•
Granted: 1967-09-26
•
Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Barry L Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:11
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/28; F16H48/285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A LIMITED SLIP DIFFERENTIAL MECHANSIM COMPRISING A PAIR OF ALIGNED SHAFTS WITH OPPOSED ENDS IN ADJACENCY, AN INTERNAL GEAR COAXIAL WITH SAID SHIFTS, MEANS SUPPORTING SAID INTERNAL GEAR FOR ROTATION AND FIXED THERETO, A SUN GEAR WITHIN THE INTERNAL GEAR SPLINED ON ONE OF SAID SHAFTS, A PLANET GEAR CARRIER SPLINED ON THE OTHER SHAFT, A PLURALITY OF PAIRS OF PLANETARY GEARS MOUNTED ON SAID CARRIER EXTENDING BETWEEN THE INTERNAL GEAR AND SUN GEAR, THE GEARS OF EACH PAIR MESHING WITH EACH OTHER AND ONE ALSO MESHING WITH THE SUN GEAR AND THE OTHER WITH THE INTERNAL GEAR, ALL OF SAID GEARS BEING HELICAL GEARS, FIRST CLUTCH MEANS FIXED ON THE SUN GEAR DISPOSED ADJACENT SAID SUPPORTING MEANS, AND SECOND CLUTCH MEANS DISPOSED BETWEEN THE CARRIER AND THE SUPPORTING MEANS AND FIXED ON ONE THEREOF.
Claim 2
Dependent Claim
135 words
A LIMITED SLIP DIFFERENTIAL MECHANSIM COMPRISING A PAIR OF ALIGNED SHAFTS WITH OPPOSED ENDS IN ADJACENCY, AN INTERNAL GEAR COAXIAL WITH SAID SHIFTS, MEANS SUPPORTING SAID INTERNAL GEAR FOR ROTATION AND FIXED THERETO, A SUN GEAR WITHIN THE INTERNAL GEAR SPLINED ON ONE OF SAID SHAFTS, A PLANET GEAR CARRIER SPLINED ON THE OTHER SHAFT, A PLURALITY OF PAIRS OF PLANETARY GEARS MOUNTED ON SAID CARRIER EXTENDING BETWEEN THE INTERNAL GEAR AND SUN GEAR, THE GEARS OF EACH PAIR MESHING WITH EACH OTHER AND ONE ALSO MESHING WITH THE SUN GEAR AND THE OTHER WITH THE INTERNAL GEAR, ALL OF SAID GEARS BEING HELICAL GEARS, FIRST CLUTCH MEANS FIXED ON THE SUN GEAR DISPOSED ADJACENT SAID SUPPORTING MEANS, AND SECOND CLUTCH MEANS DISPOSED BETWEEN THE CARRIER AND THE SUPPORTING MEANS AND FIXED ON ONE THEREOF.
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |