US3295550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing-type check valve
Assignee: Individual
•
Filing: 1964-03-02
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Granted: 1967-01-03
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Scaramucci Domer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:47
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/034; F16K15/14; F16K15/16; F16K15/161; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
IN A CHECK VALVE INCLUDING A VALVE BODY HAVING A PIVOT PIN MOUNTED THEREIN AND A VALVE SEAT SURROUNDING A FLOW PASSAGEWAY, THE IMPROVEMENT COMPRISING: A VALVE MEMBER ADAPTED TO BE PIVOTALLY SUPPORTED IN THE VALVE BODY, SAID VALVE MEMBER HAVING A SEAL PORTION ADAPTED TO SEALINGLY ENGAGE THE VALVE SEAT, A RESILIENT CONNECTING PORTION INTEGRAL WITH THE SEAL PORTION AND EXTENDING FROM SAID SEAL PORTION, SAID CONNECTING PORTION HAVING A BORE THEREIN FOR RECEIVING THE PIVOT PIN TO JOURNAL SAID VALVE MEMBER ON THE PIVOT PIN AND PERMIT THE SEAL PORTION TO ALIGN ITSELF WITH THE VALVE SEAT, AND A REINFORCING MEMBER IN SAID SEAL PORTION SIZED TO ENGAGE SAID VALVE SEAT.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |