Patent US3194266A successfully refreshed from Google Patents.
US3194266A
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US
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Device for preventing momentary transmission of pressure through normally open valve
Assignee: ROSS OPCRATING VALVE Co
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Filing: 1963-02-20
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Granted: 1965-07-13
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Abbott
- 👤 Robert J Kinsler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:11
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0431; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363; F16K31/42; F16K31/423; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/87169; Y10T137/87193; Y10T137/87209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN COMBINATION, A NORMALLY OPEN RECIPROCABLE VALVE HAVING A VALVE ELEMENT ENGAGEABLE WITH A SEAT, A SUPPLY CHAMBER AND AN OUTLET CHAMBER FOR SAID VALVE, A RECIPROCABLE MEMBER CARRYING SAID SEAT, MEANS CONSTANTLY URGING SAID MEMBER IN A DIRECTION TO CAUSE SAID SEAT TO ENGAGE SAID VALVE ELEMENT, AND PRESSURE DIFFERENTIAL MEANS RESPONSIVE TO THE MAINTANANCE OF A PREDETERMINED PRESSURE IN SAID SUPPLY CHAMBER FOR OVERCOMING SAID URGING MEANS.
Claim 2
Dependent Claim
69 words
IN COMBINATION, A NORMALLY OPEN RECIPROCABLE VALVE HAVING A VALVE ELEMENT ENGAGEABLE WITH A SEAT, A SUPPLY CHAMBER AND AN OUTLET CHAMBER FOR SAID VALVE, A RECIPROCABLE MEMBER CARRYING SAID SEAT, MEANS CONSTANTLY URGING SAID MEMBER IN A DIRECTION TO CAUSE SAID SEAT TO ENGAGE SAID VALVE ELEMENT, AND PRESSURE DIFFERENTIAL MEANS RESPONSIVE TO THE MAINTANANCE OF A PREDETERMINED PRESSURE IN SAID SUPPLY CHAMBER FOR OVERCOMING SAID URGING MEANS.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |