US3082992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed ball valve
Assignee: Fisher Governor Co
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Filing: 1961-05-12
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Granted: 1963-03-26
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Vickery Edgar Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:52
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
228 words
A SEALED BALL VALVE COMPRISING A VALVE HOUSING HAVING ALIGNED INLET AND OUTLET OPENINGS AND A STEM OPENING AT RIGHT ANGLES THERETO, A ROTATABLE VALVE STEM EXTENDING THROUGH SAID STEM OPENING, A VALVE BALL IN SAID HOUSING AND CONNECTED TO SAID VALVE STEM FOR ROTATION THEREWITH, MEANS FORMING A FLOW PASSAGE IN SAID VALVE BALL ADAPTED TO BE ROTATED INTO AND OUT OF ALIGNMENT WITH SAID INLET AND OUTLET OPENINGS FOR OPENING AND CLOSING THE VALVE, A HARD, RIGID YET FLEXIBLE FLAT ANNULAR RING SEAL HAVING A SURFACE OF DEFORMABLE MATERIAL SECURED IN SUCH HOUSING AROUND SAID INLET OPENING, SAID RING SEAL DEFINING A CIRCULAR OPENING THEREIN HAVING A DIAMETER GREATER THAN SAID FLOW PASSAGE AND ADAPTED FOR RECEIVING THE UPSTREAM FACE OF SAID VALVE BALL IN SEALING ENGAGEMENT THEREWITH, ANNULAR SEAL BACKING MEANS IN SAID HOUSING AROUND SAID INLET OPENING ABUTTING THE DOWNSTREAM FACE OF SAID RING SEAL, SAID SEAL BACKING MEANS HAVING AN INNER SURFACE GENERALLY TANGENT TO THE OUTER SURFACE OF SAID VALVE BALL AND BEING CLOSELY SPACED FROM SAID VALVE BALL TO PREVENT EXTRUSION OF SAID RING SEAL BETWEEN THE BACKING MEANS AND THE VALVE BALL, AND ANNULAR MEANS FOR FLEXING SAID RING SEAL IN THE UPSTREAM DIRECTION ADJACENT SAID VALVE BALL, SAID RING SEAL BEING RETAINED BETWEEN THE SEAL BACKING MEANS AND THE FLEXING MEANS, THE SURFACE OF THE SEAL BACKING MEANS EN-
Claim 2
Dependent Claim
228 words
A SEALED BALL VALVE COMPRISING A VALVE HOUSING HAVING ALIGNED INLET AND OUTLET OPENINGS AND A STEM OPENING AT RIGHT ANGLES THERETO, A ROTATABLE VALVE STEM EXTENDING THROUGH SAID STEM OPENING, A VALVE BALL IN SAID HOUSING AND CONNECTED TO SAID VALVE STEM FOR ROTATION THEREWITH, MEANS FORMING A FLOW PASSAGE IN SAID VALVE BALL ADAPTED TO BE ROTATED INTO AND OUT OF ALIGNMENT WITH SAID INLET AND OUTLET OPENINGS FOR OPENING AND CLOSING THE VALVE, A HARD, RIGID YET FLEXIBLE FLAT ANNULAR RING SEAL HAVING A SURFACE OF DEFORMABLE MATERIAL SECURED IN SUCH HOUSING AROUND SAID INLET OPENING, SAID RING SEAL DEFINING A CIRCULAR OPENING THEREIN HAVING A DIAMETER GREATER THAN SAID FLOW PASSAGE AND ADAPTED FOR RECEIVING THE UPSTREAM FACE OF SAID VALVE BALL IN SEALING ENGAGEMENT THEREWITH, ANNULAR SEAL BACKING MEANS IN SAID HOUSING AROUND SAID INLET OPENING ABUTTING THE DOWNSTREAM FACE OF SAID RING SEAL, SAID SEAL BACKING MEANS HAVING AN INNER SURFACE GENERALLY TANGENT TO THE OUTER SURFACE OF SAID VALVE BALL AND BEING CLOSELY SPACED FROM SAID VALVE BALL TO PREVENT EXTRUSION OF SAID RING SEAL BETWEEN THE BACKING MEANS AND THE VALVE BALL, AND ANNULAR MEANS FOR FLEXING SAID RING SEAL IN THE UPSTREAM DIRECTION ADJACENT SAID VALVE BALL, SAID RING SEAL BEING RETAINED BETWEEN THE SEAL BACKING MEANS AND THE FLEXING MEANS, THE SURFACE OF THE SEAL BACKING MEANS EN-
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |