US3072379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve having segmental seat inserts and a resilient retaining sleeve
Assignee: FMC Corp
•
Filing: 1958-08-04
•
Granted: 1963-01-08
•
Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Leland S Hamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:53
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0471; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A FLUID HANDLING VALVE INCLUDING A BODY HAVING A FLOW PASSAGE EXTENDING THERETHROUGH AND A CHAMBER INTERSECTING THE FLOW PASSAGE, A RESILIENT RETAINER IN THE CHAMBER, A SEGMENTED VALVE SEAT ASSEMBLY MOUNTED WITHIN THE RETAINER AND INCLUDING A PLURALITY OF SEGMENTAL INSERTS, AND A VALVE MEMBER HAVING A FLUID PASSAGE EXTENDING THROUGH IT, SAID VALVE MEMBER BEING ROTATABLE WITHIN SAID VALVE SEAT ASSEMBLY IN FLUID SEALING ENGAGEMENT THEREWITH, SAID RETAINER AND VALVE SEAT ASSEMBLY HAVING OPENINGS AND PORTS IN AXIAL ALIGNMENT WITH THE FLOW PASSAGE IN THE BODY, SAID INSERTS HAVING RADIALLY OUTWARDLY PROJECTING BOSSES ABOUT THE PORTS AND PROJECTING THROUGH THE OPENINGS IN THE RETAINER TO BEAR AGAINST THE WALL OF THE CHAMBER ABOUT THE FLOW PASSAGE, SAID RESILIENT RE-
Claim 2
Dependent Claim
121 words
A FLUID HANDLING VALVE INCLUDING A BODY HAVING A FLOW PASSAGE EXTENDING THERETHROUGH AND A CHAMBER INTERSECTING THE FLOW PASSAGE, A RESILIENT RETAINER IN THE CHAMBER, A SEGMENTED VALVE SEAT ASSEMBLY MOUNTED WITHIN THE RETAINER AND INCLUDING A PLURALITY OF SEGMENTAL INSERTS, AND A VALVE MEMBER HAVING A FLUID PASSAGE EXTENDING THROUGH IT, SAID VALVE MEMBER BEING ROTATABLE WITHIN SAID VALVE SEAT ASSEMBLY IN FLUID SEALING ENGAGEMENT THEREWITH, SAID RETAINER AND VALVE SEAT ASSEMBLY HAVING OPENINGS AND PORTS IN AXIAL ALIGNMENT WITH THE FLOW PASSAGE IN THE BODY, SAID INSERTS HAVING RADIALLY OUTWARDLY PROJECTING BOSSES ABOUT THE PORTS AND PROJECTING THROUGH THE OPENINGS IN THE RETAINER TO BEAR AGAINST THE WALL OF THE CHAMBER ABOUT THE FLOW PASSAGE, SAID RESILIENT RE-
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |