US3087705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable valve head
Assignee: Weatherhead Co
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Filing: 1961-04-18
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Granted: 1963-04-30
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 George A Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:11
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16K39/00; F16K39/02; F16K39/022; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7801; Y10T137/7809; Y10T137/781
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A VALVE CLOSURE MEMBER ADAPTED TO COOPERATE WITH AN ANNULAR VALVE SEAT BY RECIPROCATING MOVEMENT TO AND FROM SAID VALVE SEAT ALONG AN AXIS NORMAL THERETO COMPRISING A POPPET SUPPORT MEMBER, A FLEXIBLE POPPET ON SAID SUPPORT MEMBER, A FIXED ABUTMENT ON SAID SUPPORT MEMBER ENGAGING ONE SIDE OF SAID POPPET, AND AN ADJUSTABLE ABUTMENT MOVABLE ALONG SAID SUPPORT MEMBER AND ENGAGING THE OTHER SIDE OF SAID POPPET, THE POINTS OF ENGAGEMENT OF SAID ADJUSTABLE ABUTMENT AND SAID FIXED ABUTMENT BEING SPACED RADIALLY FROM EACH OTHER TO SELECTIVELY DISTORT SAID POPPET TO VARY THE DIAMETER OF SEALING CONTACT AND THEREBY VARY THE EFFECTIVE AREA OF THE POPPET SUB-
Claim 2
Dependent Claim
108 words
A VALVE CLOSURE MEMBER ADAPTED TO COOPERATE WITH AN ANNULAR VALVE SEAT BY RECIPROCATING MOVEMENT TO AND FROM SAID VALVE SEAT ALONG AN AXIS NORMAL THERETO COMPRISING A POPPET SUPPORT MEMBER, A FLEXIBLE POPPET ON SAID SUPPORT MEMBER, A FIXED ABUTMENT ON SAID SUPPORT MEMBER ENGAGING ONE SIDE OF SAID POPPET, AND AN ADJUSTABLE ABUTMENT MOVABLE ALONG SAID SUPPORT MEMBER AND ENGAGING THE OTHER SIDE OF SAID POPPET, THE POINTS OF ENGAGEMENT OF SAID ADJUSTABLE ABUTMENT AND SAID FIXED ABUTMENT BEING SPACED RADIALLY FROM EACH OTHER TO SELECTIVELY DISTORT SAID POPPET TO VARY THE DIAMETER OF SEALING CONTACT AND THEREBY VARY THE EFFECTIVE AREA OF THE POPPET SUB-
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |