Patent US3118706A successfully refreshed from Google Patents.
US3118706A
Expired / Lapsed
US
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Retarder valve and brake system
Assignee: Studebaker Worthington Inc
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Filing: 1960-11-29
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Granted: 1964-01-21
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Robert L Gold
- 👤 Schnell Steve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:17
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; B60T13/585; B60T15/00; B60T15/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
IN A FLUID PRESSURE SYSTEM INCLUDING FLUID COOLED RETARDER BRAKES ADAPTED TO BE ACTUATED IN DIRECT RESPONSE TO PRESSURE FLUID METERED THERETO FROM A PRESSURE FLUID SOURCE, THE COMBINATION OF SERVICE BRAKES AND A CONTROL DEVICE HAVING AN INLET CONNECTED TO SAID SOURCE AND AN OUTLET CONNECTED TO SAID SERVICE BRAKES, SAID CONTROL DEVICE BEING SUBJECTED TO THE PRESSURE FLUID METERED TO SAID FLUID COOLED RETARDER BRAKES AND BEING RESPONSIVE ONLY ABOVE A PREDETERMINED APPRECIABLE FLUID PRESSURE ACTUATING SAID FLUID COOLED RETARDER BRAKES FOR DEVELOPING AN INERTIA STOPPING FLUID PRESSURE IN SAID SERVICE BRAKES IN A PREDETERMINED PROPORTION RELATIVE TO THE FLUID PRESSURE IN SAID FLUID COOLED RETARDER BRAKES.
References Cited (Backward Citations)
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Cited
US2062167A
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US2545512A
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US2725073A
Cited
US2947387A
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US2985490A
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |