US3074427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoted valve
Assignee: MISSION VALVE AND PUMP CO
•
Filing: 1958-06-02
•
Granted: 1963-01-22
•
Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph S Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/035; F16K15/036; F16K15/038; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/223; F16K15/033; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6028; Y10T137/7504; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7854; Y10T137/7857; Y10T137/7898; Y10T137/7901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A CHECK VALVE COMPRISING A BODY, SAID BODY INCLUDING A RING PORTION HAVING A SEATING FACE ON EACH END THEREOF ADAPTED TO BE CLAMPED BETWEEN ADJACENT BOLTED TOGETHER COUPLING FLANGES OF A PIPELINE AND INCLUDING A RIB EXTENDING DIAMETRICALLY THEREACROSS DIVIDING THE OPENING THROUGH THE RING INTO TWO PASSAGES, A VALVE SEAT FORMED ON SAID RING PORTION AND RIB AROUND EACH OF SAID TWO PASSAGES AND BETWEEN SAID SEATING FACES, A PAIR OF SEMI-CIRCULAR VALVE CLOSURES EACH FOR SEATING ON ONE OF SAID SEATS TO CLOSE ONE OF SAID PASSAGES, EACH SAID CLOSURE HAVING A STRAIGHT DIAMETRIC SIDE, PIVOT MEANS ALONG EACH SAID SIDE SUPPORTING EACH SAID SIDE ADJACENT SAID RIB WHEREBY SAID CLOSURES MAY BE PIVOTALLY MOVED AWAY FROM SAID SEATS TO OPEN SAID PASSAGE, STOP MEANS DISPOSED BETWEEN
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |