US3343802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sealed rotary cylindrical shut-off valve
Assignee: Individual
•
Filing: 1965-01-21
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Granted: 1967-09-26
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Schuilwerve Steven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/18; F16K5/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A VALVE COMPRISING A HOUSING HAVING AN INLET AND AN OUTLET ARRANGED ALONG A COMMON LONGITUDINAL AXIS, A MOVABLE CYLINDRICAL ELEMENT, SAID MOVABLE CYLINDRICAL ELEMENT ARRANGED AT RIGHT ANGLES TO THE AXIS THROUGH THINLET AND OUTLET AND ADAPTED TO BE ROTATED ABOUT AN AXIS PERPENDICULAR TO THE AXIS THROUGH THE INLET AND OUTLET, SAID MOVABLE CYLINDRICAL ELEMENT ENCLOSING A SECOND CYLINDRICAL ELEMENT OF OPPROXIMATELY THE SAME CROSS SECTION AS THE INLET AND OUTLET AND BEING ARRANGED AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE MOVABLE CYLINDRICAL ELEMENT WHEREBY IN THE OPEN VALVE POSITON FLOW OCCURS THROUGH THE INLET AND OUTLET AND HOUSING VAI SAID SECOND CYLINDRICAL ELEMENT, MEANS TO ROTATE SAID MOVABLE CYLINDRICAL ELEMENT, MEANS ADAPTED TO ADMIT A PRESSURE MEDIUM INTO THE MOVABLE CYLINDRICAL ELEMENT, AND MEANS IN THE PE-
Claim 2
Dependent Claim
133 words
A VALVE COMPRISING A HOUSING HAVING AN INLET AND AN OUTLET ARRANGED ALONG A COMMON LONGITUDINAL AXIS, A MOVABLE CYLINDRICAL ELEMENT, SAID MOVABLE CYLINDRICAL ELEMENT ARRANGED AT RIGHT ANGLES TO THE AXIS THROUGH THINLET AND OUTLET AND ADAPTED TO BE ROTATED ABOUT AN AXIS PERPENDICULAR TO THE AXIS THROUGH THE INLET AND OUTLET, SAID MOVABLE CYLINDRICAL ELEMENT ENCLOSING A SECOND CYLINDRICAL ELEMENT OF OPPROXIMATELY THE SAME CROSS SECTION AS THE INLET AND OUTLET AND BEING ARRANGED AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE MOVABLE CYLINDRICAL ELEMENT WHEREBY IN THE OPEN VALVE POSITON FLOW OCCURS THROUGH THE INLET AND OUTLET AND HOUSING VAI SAID SECOND CYLINDRICAL ELEMENT, MEANS TO ROTATE SAID MOVABLE CYLINDRICAL ELEMENT, MEANS ADAPTED TO ADMIT A PRESSURE MEDIUM INTO THE MOVABLE CYLINDRICAL ELEMENT, AND MEANS IN THE PE-
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |