US3108660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic brake
Assignee: Individual
•
Filing: 1961-09-11
•
Granted: 1963-10-29
•
Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Ray F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:15
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A SPEED RETARDER FOR MOTOR VEHICLES COMPRISING A DRIVE SHAFT, A FIXED IMPELLER WHEEL CASING SURROUNDING THE DRIVE SHAFT, AN IMPELLER WHEEL MOUNTED WITHIN THE CASING ON THE DRIVE SHAFT FOR ROTATION WITH RESPECT TO THE LATTER, AND A PLANETARY GEAR TRAIN BETWEEN THE DRIVE SHAFT AND THE IMPELLER WHEEL COMPRISED BY A RING GEAR SECURED TO THE DRIVE SHAFT, PLANET GEARS MESHING WITH THE RING GEAR, IDLER GEARS MESHING WITH THE PLANET GEARS, AND A SUN GEAR SECURED TO THE IMPELLER WHEEL AND MESHING WITH THE IDLER GEARS.
Claim 2
Dependent Claim
89 words
A SPEED RETARDER FOR MOTOR VEHICLES COMPRISING A DRIVE SHAFT, A FIXED IMPELLER WHEEL CASING SURROUNDING THE DRIVE SHAFT, AN IMPELLER WHEEL MOUNTED WITHIN THE CASING ON THE DRIVE SHAFT FOR ROTATION WITH RESPECT TO THE LATTER, AND A PLANETARY GEAR TRAIN BETWEEN THE DRIVE SHAFT AND THE IMPELLER WHEEL COMPRISED BY A RING GEAR SECURED TO THE DRIVE SHAFT, PLANET GEARS MESHING WITH THE RING GEAR, IDLER GEARS MESHING WITH THE PLANET GEARS, AND A SUN GEAR SECURED TO THE IMPELLER WHEEL AND MESHING WITH THE IDLER GEARS.
References Cited (Backward Citations)
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Cited
US2219215A
Cited
US2241189A
Cited
US2543929A
Cited
US2517531A
Cited
US2775318A
Cited
US2981380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |