US3309149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined service and emergency brake system
Assignee: Echlin Inc
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Filing: 1965-12-03
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Granted: 1967-03-14
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Expires: 1985-12-03
Abstract
No abstract record available.
Inventors
- 👤 Richard C Bueler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:28
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/166; B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/261; B60T15/00; B60T15/02; B60T15/04; B60T15/043; B60T15/045; B60T15/046; B60T17/00; B60T17/08; B60T17/083; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/8593; Y10T137/86919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CONTROL VALVE COMPRISING A HOUSING HAVING A PAIR OF PORTS THEREIN, APPLICATION MEANS MOVABLE IN SAID HOUSING BETWEEN ONE POSITION EFFECTING THE APPLICATION OF FLUID PRESSURE FROM ONE OF SAID PORTS TO THE OTHER OF SAID PORTS AND ANOTHER POSITION ISOLATING THE FLUID PRESSURE AT SAID ONE PORT AND METERING THE APPLIED FLUID PRESSURE AT SAID OTHER PORT TO THE ATMOSPHERE, AND OPPOSED EFFECTIVE AREAS ON SAID APPLICATION MEANS RESPECTIVELY RESPONSIVE TO THE ISOLATED AND REDUCED APPLIED FLUID PRESSURES AT SAID ONE AND OTHER PORTS TO ESTABLISH A FORCE URGING SAID APPLICATION MEANS TOWARD THE ONE POSITION WHEN SAID APPLICATION MEANS IS IN THE OTHER POSITION THEREOF.
Claim 2
Dependent Claim
108 words
A CONTROL VALVE COMPRISING A HOUSING HAVING A PAIR OF PORTS THEREIN, APPLICATION MEANS MOVABLE IN SAID HOUSING BETWEEN ONE POSITION EFFECTING THE APPLICATION OF FLUID PRESSURE FROM ONE OF SAID PORTS TO THE OTHER OF SAID PORTS AND ANOTHER POSITION ISOLATING THE FLUID PRESSURE AT SAID ONE PORT AND METERING THE APPLIED FLUID PRESSURE AT SAID OTHER PORT TO THE ATMOSPHERE, AND OPPOSED EFFECTIVE AREAS ON SAID APPLICATION MEANS RESPECTIVELY RESPONSIVE TO THE ISOLATED AND REDUCED APPLIED FLUID PRESSURES AT SAID ONE AND OTHER PORTS TO ESTABLISH A FORCE URGING SAID APPLICATION MEANS TOWARD THE ONE POSITION WHEN SAID APPLICATION MEANS IS IN THE OTHER POSITION THEREOF.
References Cited (Backward Citations)
US3188916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |