US3134390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearable disc butterfly valve
Assignee: Futurecraft Corp
•
Filing: 1962-01-02
•
Granted: 1964-05-26
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Harold D Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A VALVE, COMPRISING: A TUBULAR BODY DEFINING AN AXIALLY EXTENDING PASSAGE; A VALVE MEMBER IN SAID PASSAGE PIVOTED FOR MOVEMENT TO OPENED AND CLOSED POSITIONS WITH RESPECT THERETO; MEANS SEALING SAID VALVE IN CLOSED POSITION INCLUDING A FRANGIBLE PERIPHERAL MARGINAL AREA ON SAID VALVE MEMBER; AND MEANS NORMALLY DISCONNECTED WITH RESPECT TO SAID VALVE MEMBER FOR APPLYING UPON ENERGIZATION A CONCENTRATED FORCE AGAINST SAID VALVE IN THE FRANGIBLE AREA OF RELEASING SAID SEALING MEANS AND MOVING SAID VALVE MEMBER TO OPENED POSITION, SAID FORCE APPLYING MEANS BEING MOUNTED ON SAID BODY IN A POSITION ADJACENT TO A PORTION OF THE PERIPHERAL FRANGIBLE AREA TO APPLY FORCE TO SUCH PORTION.
Claim 2
Dependent Claim
109 words
A VALVE, COMPRISING: A TUBULAR BODY DEFINING AN AXIALLY EXTENDING PASSAGE; A VALVE MEMBER IN SAID PASSAGE PIVOTED FOR MOVEMENT TO OPENED AND CLOSED POSITIONS WITH RESPECT THERETO; MEANS SEALING SAID VALVE IN CLOSED POSITION INCLUDING A FRANGIBLE PERIPHERAL MARGINAL AREA ON SAID VALVE MEMBER; AND MEANS NORMALLY DISCONNECTED WITH RESPECT TO SAID VALVE MEMBER FOR APPLYING UPON ENERGIZATION A CONCENTRATED FORCE AGAINST SAID VALVE IN THE FRANGIBLE AREA OF RELEASING SAID SEALING MEANS AND MOVING SAID VALVE MEMBER TO OPENED POSITION, SAID FORCE APPLYING MEANS BEING MOUNTED ON SAID BODY IN A POSITION ADJACENT TO A PORTION OF THE PERIPHERAL FRANGIBLE AREA TO APPLY FORCE TO SUCH PORTION.
References Cited (Backward Citations)
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |