Patent US2561370A successfully refreshed from Google Patents.
Patent US3193040A successfully refreshed from Google Patents.
US3193040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive-steer wheel
Assignee: Doosan Bobcat North America Inc
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Filing: 1961-07-31
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Granted: 1965-07-06
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Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jack E Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:16
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/07572; B66F9/07595
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A DRIVING WHEEL ASSEMBLY FOR A VEHICLE HAVING A POWER MEANS COMPRISING, IN COMBINATION, A ROTATABLY MOUNTED WHEEL, SAID WHEEL INCLUDING A TIRE RIM AND A PAIR OF AXIALLY SPACED RADIALLY EXTENDING DISC ELEMENTS, A SHAFT DRIVEN FROM THE VEHICLE POWER MEANS, HYDRAULIC POWER TRANSMISSION MEANS CONNECTED TO SAID SHAFT AND BEING ENCLOSED BETWEEN SAID TIRE RIM AND SAID DISC ELEMENTS, SPEED REDUCTION GEARING MEANS INTERCONNECTING SAID TRANSMISSION MEANS AND SAID WHEEL, MEANS INCLUDING ONE OF SAID DISC ELEMENTS DEFINING A FLUID CONTAINING ENCLOSURE FOR SAID GEARING MEANS, PASSAGE MEANS INCLUDING A PORTION EXTENDING THROUGH SAID ONE DISC ELEMENT DEFINING A PATH FOR CIRCULATION OF HYDRAULIC FLUID BETWEEN SAID ENCLOSURE AND SAID TRANSMISSION MEANS, AIR CIRCULATING VANE MEANS DRIVEN BY SAID TRANSMISSION MEANS, AND CONDUIT MEANS INCLUDING SAID VANE MEANS AND OPENINGS IN SAID DISC ELEMENTS FOR CIRCULATING AIR ADJACENT SAID ENCLOSURE AND SAID TRANSMISSION MEANS.
Claim 2
Dependent Claim
146 words
A DRIVING WHEEL ASSEMBLY FOR A VEHICLE HAVING A POWER MEANS COMPRISING, IN COMBINATION, A ROTATABLY MOUNTED WHEEL, SAID WHEEL INCLUDING A TIRE RIM AND A PAIR OF AXIALLY SPACED RADIALLY EXTENDING DISC ELEMENTS, A SHAFT DRIVEN FROM THE VEHICLE POWER MEANS, HYDRAULIC POWER TRANSMISSION MEANS CONNECTED TO SAID SHAFT AND BEING ENCLOSED BETWEEN SAID TIRE RIM AND SAID DISC ELEMENTS, SPEED REDUCTION GEARING MEANS INTERCONNECTING SAID TRANSMISSION MEANS AND SAID WHEEL, MEANS INCLUDING ONE OF SAID DISC ELEMENTS DEFINING A FLUID CONTAINING ENCLOSURE FOR SAID GEARING MEANS, PASSAGE MEANS INCLUDING A PORTION EXTENDING THROUGH SAID ONE DISC ELEMENT DEFINING A PATH FOR CIRCULATION OF HYDRAULIC FLUID BETWEEN SAID ENCLOSURE AND SAID TRANSMISSION MEANS, AIR CIRCULATING VANE MEANS DRIVEN BY SAID TRANSMISSION MEANS, AND CONDUIT MEANS INCLUDING SAID VANE MEANS AND OPENINGS IN SAID DISC ELEMENTS FOR CIRCULATING AIR ADJACENT SAID ENCLOSURE AND SAID TRANSMISSION MEANS.
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |