US3208306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gearing
Assignee: Individual
•
Filing: 1962-04-05
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Granted: 1965-09-28
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Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Robert P Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:13
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A LIMITED SLIP OF DIFFERENTIAL MECHANISM, THE COMBINATION COMPRISING A ROTATABLE GEAR CASE, A POWER TRANSMISSION GEAR TRAIN WITHIN SAID CASE AND INCLUDING A PAIR OF OPPOSED SIDE GEARS EACH ADAPTED FOR CONNECTION TO AND AXIAL MOVEMENT OF AN AXLE SHAFT, A PLURALITY OF INTERLEAVED CLUTCH PLATES INTERPOSED BETWEEN EACH SIDE GEAR AND SAID GEAR CASE, CERTAIN OF SAID CLUTCH BEING ROTATABLE WITH AND AXIALLY MOVABLE RELATIVE TO EACH SIDE GEAR AND OTHERS OF SAID CLUTCH PLATES BEING ROTATABLE WITH AND AXIALLY MOVABLE IN SAID GEAR CASE, A HUB ON EACH SIDE GEAR PROJECTING OUTWARDLY THEREOF, RETAINING BUSHINGS FIXED IN THE GEAR CASE AND PROVIDING RESPECTIVELY BEARINGS FOR SAID GEAR HUBS AND RETAINERS FOR SAID CLUTCH DISCS DURING AS-
Claim 2
Dependent Claim
120 words
IN A LIMITED SLIP OF DIFFERENTIAL MECHANISM, THE COMBINATION COMPRISING A ROTATABLE GEAR CASE, A POWER TRANSMISSION GEAR TRAIN WITHIN SAID CASE AND INCLUDING A PAIR OF OPPOSED SIDE GEARS EACH ADAPTED FOR CONNECTION TO AND AXIAL MOVEMENT OF AN AXLE SHAFT, A PLURALITY OF INTERLEAVED CLUTCH PLATES INTERPOSED BETWEEN EACH SIDE GEAR AND SAID GEAR CASE, CERTAIN OF SAID CLUTCH BEING ROTATABLE WITH AND AXIALLY MOVABLE RELATIVE TO EACH SIDE GEAR AND OTHERS OF SAID CLUTCH PLATES BEING ROTATABLE WITH AND AXIALLY MOVABLE IN SAID GEAR CASE, A HUB ON EACH SIDE GEAR PROJECTING OUTWARDLY THEREOF, RETAINING BUSHINGS FIXED IN THE GEAR CASE AND PROVIDING RESPECTIVELY BEARINGS FOR SAID GEAR HUBS AND RETAINERS FOR SAID CLUTCH DISCS DURING AS-
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |