US3952846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatically cooled brake
Assignee: Bendix Corp
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Filing: 1973-06-11
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Granted: 1976-04-27
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Expires: 1993-06-11
Abstract
Abstract Apparatus for cooling a disc brake or the like wherein a plurality of electrically conductive probes are arranged in circumferentially spaced-apart relationship radially outwardly from frictionally engageable disc portions of the brake and adapted to direct a high voltage, low amperage electrical flow to the frictionally engageable disc portions which are of opposite electrical polarity and separated from the probes by a predetermined air gap. A suitable high voltage electrical source is connected to the probes and the frictionally engageable disc portions to establish electrostatic discharge across the air gap.
Inventors
- 👤 Chung Ping Han
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:55
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/84; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D2055/0004; F16D2055/0058
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
237 words
An electrostatically cooled brake for retarding movement of a rotatable wheel or the like comprising: a rotatable member provided with a first friction surface and operatively connected to a rotatable wheel for rotation therewith; a stationary member provided with a second friction surface adapted to frictionally engage said rotatable member to retard rotation thereof; actuating means operatively connected to one of said rotatable and stationary members for actuating the same to cause frictional engagement of said first and second friction surfaces; a source of electric power provided with negative and positive charge terminals; probe means electrically connected to one of said terminals and electrically charged accordingly and arranged in spaced apart relationship to said rotatable and stationary members; coil means operatively connected to said electrical connection between said probe means and said one terminal for increasing the voltage applied to said probe means; breaker means operatively connected to said electrical connection for intermittingly interrupting the electrical flow to said coil means; cam means operatively connected to said rotatable wheel and said breaker means for actuating said breaker means in response to rotation of said wheel; and conductor means operatively connecting the other of said terminals to said rotatable and stationary members for electrically charging said other terminal accordingly to establish an electrical potential and corresponding electrostatic discharge between said probe means and said rotatable stationary members to effectively reduce the temperature of said rotatable and stationary members.
Claim 2
Dependent Claim
237 words
An electrostatically cooled brake for retarding movement of a rotatable wheel or the like comprising: a rotatable member provided with a first friction surface and operatively connected to a rotatable wheel for rotation therewith; a stationary member provided with a second friction surface adapted to frictionally engage said rotatable member to retard rotation thereof; actuating means operatively connected to one of said rotatable and stationary members for actuating the same to cause frictional engagement of said first and second friction surfaces; a source of electric power provided with negative and positive charge terminals; probe means electrically connected to one of said terminals and electrically charged accordingly and arranged in spaced apart relationship to said rotatable and stationary members; coil means operatively connected to said electrical connection between said probe means and said one terminal for increasing the voltage applied to said probe means; breaker means operatively connected to said electrical connection for intermittingly interrupting the electrical flow to said coil means; cam means operatively connected to said rotatable wheel and said breaker means for actuating said breaker means in response to rotation of said wheel; and conductor means operatively connecting the other of said terminals to said rotatable and stationary members for electrically charging said other terminal accordingly to establish an electrical potential and corresponding electrostatic discharge between said probe means and said rotatable stationary members to effectively reduce the temperature of said rotatable and stationary members.
Claim 3
Dependent Claim
44 words
An electrostatically cooled brake as claimed in claim 1 wherein: said operative connection between said cam means and said rotatable wheel includes a rotatable shaft and a driving member connected to the shaft and said wheel for rotating said shaft and thus said cam.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |