Patent US3145799A successfully refreshed from Google Patents.
US3145799A
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Steerable drive wheel assembly
Assignee: AMERICAN COLEMAN CO
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Filing: 1962-03-01
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Granted: 1964-08-25
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Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 Francis L Wier
- 👤 Raymond A Celien
- 👤 Emmet L Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/38; B; B60; B60K; B60K17/00; B60K17/30; B60K17/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A STEERABLE DRIVE WHEEL ASSEMBLY HAVING A RIGID AXLE SHAFT ENCLOSED IN AND EXTENDING BEYOND A HOUSING, A SPINDLE PIVOTALLY MOUNTED ON SAID HOUSING ADJACENT THE OUTER END OF SAID AXLE SHAFT, A WHEEL SUPPORT HOUSING MOUNTED FOR ROTATION ON SAID SPINDLE, SAID SUPPORT HOUSING ARRANGED FOR CONJOINT ANGULAR PIVOTAL MOVEMENT WITH THE SPINDLE, THE IMPROVEMENT WHICH COMPRISES A DOUBLE GIMBAL INTERCONNECTION BETWEEN SAID RIGID AXLE SHAFT AND SAID WHEEL SUPPORT HOUSING, SAID DOUBLE GIMBAL INTERCONNECTION ARRANGED TO TRANSMIT ROTARY MOTION FROM SAID SHAFT TO SAID WHEEL SUPPORT HOUSING THROUGH ANGULAR PIVOTAL MOVEMENTS THEREOF, SAID DOUBLE GIMBAL INTERCONNECTION INCLUDING A PAIR OF RINGS, ONE RING BEING SMALLER AND PIVOTALLY INTERCONNECTED INSIDE THE OTHER, BOTH SAID
Claim 2
Dependent Claim
116 words
IN A STEERABLE DRIVE WHEEL ASSEMBLY HAVING A RIGID AXLE SHAFT ENCLOSED IN AND EXTENDING BEYOND A HOUSING, A SPINDLE PIVOTALLY MOUNTED ON SAID HOUSING ADJACENT THE OUTER END OF SAID AXLE SHAFT, A WHEEL SUPPORT HOUSING MOUNTED FOR ROTATION ON SAID SPINDLE, SAID SUPPORT HOUSING ARRANGED FOR CONJOINT ANGULAR PIVOTAL MOVEMENT WITH THE SPINDLE, THE IMPROVEMENT WHICH COMPRISES A DOUBLE GIMBAL INTERCONNECTION BETWEEN SAID RIGID AXLE SHAFT AND SAID WHEEL SUPPORT HOUSING, SAID DOUBLE GIMBAL INTERCONNECTION ARRANGED TO TRANSMIT ROTARY MOTION FROM SAID SHAFT TO SAID WHEEL SUPPORT HOUSING THROUGH ANGULAR PIVOTAL MOVEMENTS THEREOF, SAID DOUBLE GIMBAL INTERCONNECTION INCLUDING A PAIR OF RINGS, ONE RING BEING SMALLER AND PIVOTALLY INTERCONNECTED INSIDE THE OTHER, BOTH SAID
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |