US3078069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: J Blakeborough and Sons Ltd
•
Filing: 1960-04-01
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Granted: 1963-02-19
•
Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Broadbent Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:49
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/228
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A BUTTERFLY VALVE FOR CONTROLLING FLUID FLOW COMPRISING MEANS DEFINING A STRAIGHT TAPERED BORE, SERVING AS A VALVE SEATING, A VALVE SHAFT, MEANS MOUNTING SAID VALVE SHAFT WITHIN SAID BORE DEFINING MEANS WITH ITS LONGITUDINAL AXIS OFFSET FROM BUT PARALLEL WITH A DIAMETER OF SAID STRAIGHT TAPERED BORE, A SUBSTANTIALLY CIRCULAR VALVE MEMBER, MEANS MOUNTING SAID VALVE MEMBER ON SAID SHAFT, FOR PARTIAL ROTATION ABOUT THE LONGITUDINAL AXIS OF SAID SHAFT, A CONTINUOUS SEALING FACE FORMED ON THE PERIPHERY OF SAID VALVE MEMBER AND HAVING TWO SEMI-CIRCULAR PARTS ONE OF EACH SIDE OF SAID SHAFT, SAID SEMI-CIRCULAR PARTS OF SAID SEALING FACE BEING JOINED AT THEIR ENDS BY SHAFT CIRCUMVENTING PARTS OF SAID SEALING FACE, WHICH SHAFT CIRCUMVENTING PARTS ARE BOTH DISPOSED TO LIE ON THAT SIDE OF SAID SHAFT WHICH FACES TOWARDS THE SMALLER DIAMETER END OF SAID STRAIGHT TAPERED BORE WHEN SAID VALVE MEMBER IS IN THE CLOSED POSITION, SAID VALVE MEMBER MOUNTING MEANS BEING FURTHER ARRANGED SO THAT SAID LONGITUDINAL AXIS OF SAID SHAFT LIES WITHIN THE WIDTH OF SAID VALVE MEMBER, SAID VALVE MEMBER BEING OF SUCH A DIAMETER THAT SAID SEALING FACE ENGAGES WITH SAID STRAIGHT TAPERED BORE, TO FORM A COMPLETE SEAL WITH SAID STRAIGHT TAPERED BORE, WHEN THE ENDS OF THAT DIAMETER OF SAID VALVE MEMBER WHICH IS AT RIGHT ANGLES TO SAID SHAFT LONGITUDINAL AXIS ARE DISPLACED AXIALLY RELATIVELY TO EACH OTHER.
Claim 2
Dependent Claim
230 words
A BUTTERFLY VALVE FOR CONTROLLING FLUID FLOW COMPRISING MEANS DEFINING A STRAIGHT TAPERED BORE, SERVING AS A VALVE SEATING, A VALVE SHAFT, MEANS MOUNTING SAID VALVE SHAFT WITHIN SAID BORE DEFINING MEANS WITH ITS LONGITUDINAL AXIS OFFSET FROM BUT PARALLEL WITH A DIAMETER OF SAID STRAIGHT TAPERED BORE, A SUBSTANTIALLY CIRCULAR VALVE MEMBER, MEANS MOUNTING SAID VALVE MEMBER ON SAID SHAFT, FOR PARTIAL ROTATION ABOUT THE LONGITUDINAL AXIS OF SAID SHAFT, A CONTINUOUS SEALING FACE FORMED ON THE PERIPHERY OF SAID VALVE MEMBER AND HAVING TWO SEMI-CIRCULAR PARTS ONE OF EACH SIDE OF SAID SHAFT, SAID SEMI-CIRCULAR PARTS OF SAID SEALING FACE BEING JOINED AT THEIR ENDS BY SHAFT CIRCUMVENTING PARTS OF SAID SEALING FACE, WHICH SHAFT CIRCUMVENTING PARTS ARE BOTH DISPOSED TO LIE ON THAT SIDE OF SAID SHAFT WHICH FACES TOWARDS THE SMALLER DIAMETER END OF SAID STRAIGHT TAPERED BORE WHEN SAID VALVE MEMBER IS IN THE CLOSED POSITION, SAID VALVE MEMBER MOUNTING MEANS BEING FURTHER ARRANGED SO THAT SAID LONGITUDINAL AXIS OF SAID SHAFT LIES WITHIN THE WIDTH OF SAID VALVE MEMBER, SAID VALVE MEMBER BEING OF SUCH A DIAMETER THAT SAID SEALING FACE ENGAGES WITH SAID STRAIGHT TAPERED BORE, TO FORM A COMPLETE SEAL WITH SAID STRAIGHT TAPERED BORE, WHEN THE ENDS OF THAT DIAMETER OF SAID VALVE MEMBER WHICH IS AT RIGHT ANGLES TO SAID SHAFT LONGITUDINAL AXIS ARE DISPLACED AXIALLY RELATIVELY TO EACH OTHER.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |