Patent US3191619A successfully refreshed from Google Patents.
US3191619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve having movably mounted head and seat
Assignee: Cooper Industries LLC
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Filing: 1962-09-18
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Granted: 1965-06-29
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Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Allen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7898; Y10T137/7901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CHECK VALVE, COMPRISING A BODY HAVING A FLOWWAY THERETHROUGH, AN ANNULAR SEAT COMPRISING A RING WITHIN THE FLOWWAY, MEANS FORMING A SLIDING SEAL BETWEEN THE SEAT AND FLOWWAY, A CLAPPER TYPE VALVE MEMBER, MEANS MOUNTING THE VALVE MEMBER FOR SWINGING WITHIN THE VALVE BODY BETWEEN A FIRST POSITION PROVIDING AN OPENING THROUGH THE FLOWWAY AND A SECOND POSITION SEALABLY ENGAGED AGAINST AN END OF THE SEAT RING TO CLOSE THE FLOWWAY, AND MEANS BETWEEN THE VALVE BODY AND SEAT RING YIELDABLY URGING SAID END OF SAID RING TOWARD SEALING ENGAGEMENT WITH THE VALVE MEMBER SO AS TO CUSHION THE SWINGING OF SAME FROM SAID FIRST POSITION TO SAID SECOND POSITION.
Claim 2
Dependent Claim
111 words
A CHECK VALVE, COMPRISING A BODY HAVING A FLOWWAY THERETHROUGH, AN ANNULAR SEAT COMPRISING A RING WITHIN THE FLOWWAY, MEANS FORMING A SLIDING SEAL BETWEEN THE SEAT AND FLOWWAY, A CLAPPER TYPE VALVE MEMBER, MEANS MOUNTING THE VALVE MEMBER FOR SWINGING WITHIN THE VALVE BODY BETWEEN A FIRST POSITION PROVIDING AN OPENING THROUGH THE FLOWWAY AND A SECOND POSITION SEALABLY ENGAGED AGAINST AN END OF THE SEAT RING TO CLOSE THE FLOWWAY, AND MEANS BETWEEN THE VALVE BODY AND SEAT RING YIELDABLY URGING SAID END OF SAID RING TOWARD SEALING ENGAGEMENT WITH THE VALVE MEMBER SO AS TO CUSHION THE SWINGING OF SAME FROM SAID FIRST POSITION TO SAID SECOND POSITION.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |