Patent US3145032A successfully refreshed from Google Patents.
US3145032A
Expired / Lapsed
US
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Load controlled valve for vehicle air springs
Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1957-10-28
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Granted: 1964-08-18
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Expires: 1977-10-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Turek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; B60G17/052; B60G17/0523; B60G17/0525; Y; Y10; Y10S; Y10S280/00; Y10S280/01; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
CONTROL MEANS FOR REGULATING THE AIR PRESSURE WITHIN A VEHICLE AIR SPRING FOR MAINTAINING THE VEHICLE FRAME A PREDETERMINED DISTANCE ABOVE THE VEHICLE AXLE, COMPRISING A LEVELING VALVE HAVING A CASING ADAPTED TO BE MOUNTED ON THE FRAME, AND HAVING AN INLET ADAPTED TO BE SUPPLIED WITH COMPRESSED AIR, VALVE MEANS WITHIN THE CASING FOR CONTROLLING THE FLOW OF COMPRESSED AIR TO AND FROM THE AIR SPRING, A SINGLE VALVE ACTUATING ELEMENT WITHIN THE CASING FOR OPERATING SAID VALVE MEANS, SAID ELEMENT BEING MOVABLE IN OPPOSITE DIRECTIONS AND BEING PROVIDED WITH A RECESS, MEANS INCLUDING AN OSCILLATABLE LEVER RESPONSIVE TO RELATIVE MOVEMENT BETWEEN THE FRAME AND AXLE, MEANS INCLUDING A MEMBER MOVABLE IN ONE DIRECTION INTO SAID RECESS AND MOVABLE IN THE OPPOSITE DIRECTION OUT OF SAID RECESS TO POSITIVELY CONNECT AND TO POSITIVELY DISCONNECT SAID LEVER AND ELEMENT, A FLUID PRESSURE DEVICE FOR CONTROLLING THE MOVEMENTS OF SAID MEMBER IN SAID DIRECTIONS, AND MANUALLY OPERABLE MEANS FOR APPLYING COMPRESSED AIR TO SAID DEVICE.
Claim 2
Dependent Claim
164 words
CONTROL MEANS FOR REGULATING THE AIR PRESSURE WITHIN A VEHICLE AIR SPRING FOR MAINTAINING THE VEHICLE FRAME A PREDETERMINED DISTANCE ABOVE THE VEHICLE AXLE, COMPRISING A LEVELING VALVE HAVING A CASING ADAPTED TO BE MOUNTED ON THE FRAME, AND HAVING AN INLET ADAPTED TO BE SUPPLIED WITH COMPRESSED AIR, VALVE MEANS WITHIN THE CASING FOR CONTROLLING THE FLOW OF COMPRESSED AIR TO AND FROM THE AIR SPRING, A SINGLE VALVE ACTUATING ELEMENT WITHIN THE CASING FOR OPERATING SAID VALVE MEANS, SAID ELEMENT BEING MOVABLE IN OPPOSITE DIRECTIONS AND BEING PROVIDED WITH A RECESS, MEANS INCLUDING AN OSCILLATABLE LEVER RESPONSIVE TO RELATIVE MOVEMENT BETWEEN THE FRAME AND AXLE, MEANS INCLUDING A MEMBER MOVABLE IN ONE DIRECTION INTO SAID RECESS AND MOVABLE IN THE OPPOSITE DIRECTION OUT OF SAID RECESS TO POSITIVELY CONNECT AND TO POSITIVELY DISCONNECT SAID LEVER AND ELEMENT, A FLUID PRESSURE DEVICE FOR CONTROLLING THE MOVEMENTS OF SAID MEMBER IN SAID DIRECTIONS, AND MANUALLY OPERABLE MEANS FOR APPLYING COMPRESSED AIR TO SAID DEVICE.
References Cited (Backward Citations)
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |