Patent US4948125A successfully refreshed from Google Patents.
Patent US3107895A successfully refreshed from Google Patents.
US3107895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve seat construction
Assignee: Sulzer AG
•
Filing: 1959-09-10
•
Granted: 1963-10-22
•
Expires: 1979-09-10
Abstract
No abstract record available.
Inventors
- 👤 Vogeli Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:58
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6116; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A VALVE, A VALVE HOUSING HAVING A VALVE CHAMBER THEREIN, INLET AND OUTLET PASSAGES DISPOSED IN SAID VALVE HOUSING AND COMMUNICATING THROUGH SAID VALVE CHAMBER, A SUPPORTING SURFACE DISPOSED IN ONE END OF SAID VALVE CHAMBER, A SEAT ELEMENT DISPOSED IN SAID VALVE CHAMBER, SAID SEAT ELEMENT INCLUDING A LOWER END ABUTTING AGAINST SAID SUPPORTING SURFACE, AN UPPER END CONTAINING A SEATING SURFACE, AND A FLANGE PORTION ADJACENT SAID LOWER END, AN INTERMEDIATE ELASTIC TUBULAR MEMBER DISPOSED IN SAID VALVE CHAMBER HAVING ONE END ABUTTING AGAINST SAID FLANGE PORTION TO APPLY UNIFORM ANNULAR PRESSURE THEREON, THE OTHER END OF SAID INTERMEDIATE ELASTIC TUBULAR MEMBER BEING DISPOSED ADJACENT THE OTHER END OF SAID VALVE CHAMBER WHILE BEING UNDER STRESS TO PRESS SAID LOWER END OF SAID SEAT ELEMENT INTO PERMANENT SEALING ENGAGEMENT AGAINST SAID SUPPORTING SURFACE OF SAID VALVE CHAMBER, AND MEANS TO SECURE THE OTHER END OF SAID INTERMEDIATE ELASTIC TUBULAR MEMBER TO THE OTHER END OF SAID VALVE CHAMBER SO THAT SAID SEATING SURFACE MAINTAINS ITS CORRECT POSITION.
Claim 2
Dependent Claim
170 words
IN A VALVE, A VALVE HOUSING HAVING A VALVE CHAMBER THEREIN, INLET AND OUTLET PASSAGES DISPOSED IN SAID VALVE HOUSING AND COMMUNICATING THROUGH SAID VALVE CHAMBER, A SUPPORTING SURFACE DISPOSED IN ONE END OF SAID VALVE CHAMBER, A SEAT ELEMENT DISPOSED IN SAID VALVE CHAMBER, SAID SEAT ELEMENT INCLUDING A LOWER END ABUTTING AGAINST SAID SUPPORTING SURFACE, AN UPPER END CONTAINING A SEATING SURFACE, AND A FLANGE PORTION ADJACENT SAID LOWER END, AN INTERMEDIATE ELASTIC TUBULAR MEMBER DISPOSED IN SAID VALVE CHAMBER HAVING ONE END ABUTTING AGAINST SAID FLANGE PORTION TO APPLY UNIFORM ANNULAR PRESSURE THEREON, THE OTHER END OF SAID INTERMEDIATE ELASTIC TUBULAR MEMBER BEING DISPOSED ADJACENT THE OTHER END OF SAID VALVE CHAMBER WHILE BEING UNDER STRESS TO PRESS SAID LOWER END OF SAID SEAT ELEMENT INTO PERMANENT SEALING ENGAGEMENT AGAINST SAID SUPPORTING SURFACE OF SAID VALVE CHAMBER, AND MEANS TO SECURE THE OTHER END OF SAID INTERMEDIATE ELASTIC TUBULAR MEMBER TO THE OTHER END OF SAID VALVE CHAMBER SO THAT SAID SEATING SURFACE MAINTAINS ITS CORRECT POSITION.
References Cited (Backward Citations)
US647192A
Cited
US1732241A
Cited
GB500785A
Cited
US2224857A
Cited
US2261489A
Cited
US2347676A
Cited
US2851768A
Cited
US2887295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |