Patent US3675699A successfully refreshed from Google Patents.
US3675699A
Expired / Lapsed
US
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Wheel assembly with tire cooling means
Assignee: Pennwalt Corp
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Filing: 1970-02-27
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Granted: 1972-07-11
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Expires: 1990-02-27
Abstract
Abstract A wheel assembly has an enclosed and evacuated chamber extending between its hub and rim. Within the chamber is a liquid which is propelled toward the outer periphery of the assembly by centrifugal force during rotation thereof. Heat from the tire is ultimately transferred to the liquid to vaporize the same, and consequently cool the tire. Because the chamber is evacuated, the vapor rapidly moves inwardly toward the hub. Ambient air contacting the external surfaces of the assembly condenses the vapor, and centrifugal force propels the condensate toward the outer periphery once again. This process is continuously repeated.
Inventors
- 👤 Luke Ralph Ocone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:28
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/18; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A wheel assembly comprising a hub, a rim concentrically disposed around said hub, wall structure extending between said hub and rim, said wall structure together with said hub aNd said rim defining an enclosed chamber, said chamber being sealed to prevent any communication between said chamber and the surrounding atmosphere during the operation of the wheel assembly, said chamber being evacuated of air, a tubeless tire mounted on said rim, and a heat transferring liquid disposed within said evacuated chamber, said liquid adapted to vaporize upon contacting said rim during operation of said wheel assembly, the vapor being adapted to condense upon moving radially inwardly toward said hub and contacting the inner surface of said wall structure during operation of said wheel assembly.
Claim 2
Dependent Claim
123 words
A wheel assembly comprising a hub, a rim concentrically disposed around said hub, wall structure extending between said hub and rim, said wall structure together with said hub aNd said rim defining an enclosed chamber, said chamber being sealed to prevent any communication between said chamber and the surrounding atmosphere during the operation of the wheel assembly, said chamber being evacuated of air, a tubeless tire mounted on said rim, and a heat transferring liquid disposed within said evacuated chamber, said liquid adapted to vaporize upon contacting said rim during operation of said wheel assembly, the vapor being adapted to condense upon moving radially inwardly toward said hub and contacting the inner surface of said wall structure during operation of said wheel assembly.
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |