US3360004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure proportioning valve
Assignee: Bendix Corp
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Filing: 1965-09-07
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Granted: 1967-12-26
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Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Richard L Lewis
- 👤 Charles M Barnes
- 👤 Donald W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:21
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26; B60T11/00; B60T11/10; B60T11/28; B60T11/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7781; Y10T137/7793; Y10T137/7808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
326 words
A PRESSURE PROPORTIONING DEVICED COMPRISING: A HOUSING HAVING A BORE THEREIN, A FIRST VALVE MEMBER AND A SECOND VALVE MEMBER MOUNTED IN SAID BORE FOR SUBSTANTIAL SLIDABLE MOVEMENT THEREIN, SAID BORE INCLUDING AN INLET CHAMBER AND AN OUTLET CHAMBER, SAID SECOND VALVE MEMBER HAVING A FIRST EFFECTIVE AREA EXPOSED TO PRESSURE AT SAID OUTLET CHAMBER, FIRST PASSAGE MEANS CARRIED BY SAID FIRST VALVE MEMBER COMMUNICATING A SECOND EFFECTIVE AREA ON SAID SECOND VALVE MEMBER AND SAID OUTLET CHAMBER WITH SAID INLET CHAMBER, SAID FIRST EFFECTIVE AREA BEING SO ARRANGED THAT OUTLET PRESSURE ACTING THEREON WILL URGE SAID SECOND VALVE MEMBER IN ONE DIRECTION AND INTO ENGAGEMENT WITH SAID FIRST VALVE MEMBER, SAID SECOND EFFECTIVE AREA BEING LESS THAN SAID FIRST EFFECTIVE AREA AND SO ARRANGED THAT INLET PRESSURE ACTING THEREON WILL URGE SAID SECOND VALVE MEMBER IN THE OPPOSITE DIRECTION, COOPERATING VALVE MEANS ON SAID VALVE MEMBERS EFFECTIVE TO CUT OFF COMMUNICATION BETWEEN SAID FIRST PASSAGE MEANS AND SAID OUTLET CHAMBER IN CLOSED POSITION WHEN SAID VALVE MEMBERS ENGAGE EACH OTHER AND TO COMMUNICATE SAID INLET AND OUTLET CHAMBERS IN OPEN POSITION WHEN SAID VALVE MEMBERS ARE DISENGAGED FROM EACH OTHER, SECOND PASSAGE MEANS COMMUNICATING SAID OUTLET CHAMBER TO SAID INLET CHAMBER, CHECK VALVE MEANS LOCATED IN SAID SECOND PASSAGE, MEANS CONSTRUCTED TO ALLOW FLOW ONLY FROM SAID OUTLET CHAMBER TO SAID INLET CHAMBER, FIRST STOP MEANS, FIRST RESILIENT MEANS URGING SAID FIRST VALVE MEMBER IN SAID OPPOSITE DIRECTION AGAINST SAID FIRST STOP MEANS, SECOND STOP MEANS, SECOND RESILIENT MEANS STRONGER THAN SAID FIRST RESILIENT MEANS URGING SAID SECOND VALVE MEMBER IN SAID OPPOSITE DIRECTION AGAINST SAID SECOND STOP MEANS , SAID VALVE MEMBERS BEING SO CONSTRUCTED THAT WHEN EACH ARE SIMULTANEOUSLY AGAINST SAID STOP MEANS, SAID VALVE MEANS IS OPEN, SAID SECOND VALVE MEMBER AND SAID OUTLET CHAMBER BEING SO CONSTRUCTED AND ARRANGED TO DEFINE AN EXPANSIBLE CHAMBER WHEN SAID SECOND VALVE MEMBER IS MOVED IN SAID ONE DIRECTION AWAY FROM SAID SECOND STOP MEANS.
Claim 2
Dependent Claim
326 words
A PRESSURE PROPORTIONING DEVICED COMPRISING: A HOUSING HAVING A BORE THEREIN, A FIRST VALVE MEMBER AND A SECOND VALVE MEMBER MOUNTED IN SAID BORE FOR SUBSTANTIAL SLIDABLE MOVEMENT THEREIN, SAID BORE INCLUDING AN INLET CHAMBER AND AN OUTLET CHAMBER, SAID SECOND VALVE MEMBER HAVING A FIRST EFFECTIVE AREA EXPOSED TO PRESSURE AT SAID OUTLET CHAMBER, FIRST PASSAGE MEANS CARRIED BY SAID FIRST VALVE MEMBER COMMUNICATING A SECOND EFFECTIVE AREA ON SAID SECOND VALVE MEMBER AND SAID OUTLET CHAMBER WITH SAID INLET CHAMBER, SAID FIRST EFFECTIVE AREA BEING SO ARRANGED THAT OUTLET PRESSURE ACTING THEREON WILL URGE SAID SECOND VALVE MEMBER IN ONE DIRECTION AND INTO ENGAGEMENT WITH SAID FIRST VALVE MEMBER, SAID SECOND EFFECTIVE AREA BEING LESS THAN SAID FIRST EFFECTIVE AREA AND SO ARRANGED THAT INLET PRESSURE ACTING THEREON WILL URGE SAID SECOND VALVE MEMBER IN THE OPPOSITE DIRECTION, COOPERATING VALVE MEANS ON SAID VALVE MEMBERS EFFECTIVE TO CUT OFF COMMUNICATION BETWEEN SAID FIRST PASSAGE MEANS AND SAID OUTLET CHAMBER IN CLOSED POSITION WHEN SAID VALVE MEMBERS ENGAGE EACH OTHER AND TO COMMUNICATE SAID INLET AND OUTLET CHAMBERS IN OPEN POSITION WHEN SAID VALVE MEMBERS ARE DISENGAGED FROM EACH OTHER, SECOND PASSAGE MEANS COMMUNICATING SAID OUTLET CHAMBER TO SAID INLET CHAMBER, CHECK VALVE MEANS LOCATED IN SAID SECOND PASSAGE, MEANS CONSTRUCTED TO ALLOW FLOW ONLY FROM SAID OUTLET CHAMBER TO SAID INLET CHAMBER, FIRST STOP MEANS, FIRST RESILIENT MEANS URGING SAID FIRST VALVE MEMBER IN SAID OPPOSITE DIRECTION AGAINST SAID FIRST STOP MEANS, SECOND STOP MEANS, SECOND RESILIENT MEANS STRONGER THAN SAID FIRST RESILIENT MEANS URGING SAID SECOND VALVE MEMBER IN SAID OPPOSITE DIRECTION AGAINST SAID SECOND STOP MEANS , SAID VALVE MEMBERS BEING SO CONSTRUCTED THAT WHEN EACH ARE SIMULTANEOUSLY AGAINST SAID STOP MEANS, SAID VALVE MEANS IS OPEN, SAID SECOND VALVE MEMBER AND SAID OUTLET CHAMBER BEING SO CONSTRUCTED AND ARRANGED TO DEFINE AN EXPANSIBLE CHAMBER WHEN SAID SECOND VALVE MEMBER IS MOVED IN SAID ONE DIRECTION AWAY FROM SAID SECOND STOP MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |