Patent US3097823A successfully refreshed from Google Patents.
US3097823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutoff cock having a spherical plug
Assignee: Individual
•
Filing: 1960-09-14
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Granted: 1963-07-16
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Expires: 1980-09-14
Abstract
No abstract record available.
Inventors
- 👤 Kaiser Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:58
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673; F16K5/0678
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SHUT-OFF COCK FOR A FLOWING MEDIUM, COMPRISING A HOUSING HAVING INFLOW AND OUTFLOW OPENINGS THEREIN, A SPHERICAL PLUNG IN SAID HOUSING FOR SEALING SAID OPENINGS, A PISTON-TYPE PACKING RING ARRANGED COAXIALLY IN EACH OF THE RESPECTIVE OPENINGS IN SAID HOUSING, THE REAR SIDE OF THE PACKING RING BEING UNDER THE PRESSURE OF THE FLOWING MEDIUM AND ALSO UNDER SPRING PRESSURE, AND MEANS FOR SEALING THE OUTER PERIPHERY OF THE PACKING RINGS, SAID MEANS COMPRISING OPPOSITELY SPRING PRESSED INTERENGAGING CONICAL WEDGE RINGS WHICH ARE LOADED BY THE SPRING PRESSURE AND BY THE PRESSURE OF THE FLOWING MEDIUM AND ARE OF RELATIVELY SMALL VOLUME AND CONSIST OF HEAT-STABLE AND CHEMICALLY STABLE SYNTHETIC PLASTIC MATERIAL.
Claim 2
Dependent Claim
113 words
A SHUT-OFF COCK FOR A FLOWING MEDIUM, COMPRISING A HOUSING HAVING INFLOW AND OUTFLOW OPENINGS THEREIN, A SPHERICAL PLUNG IN SAID HOUSING FOR SEALING SAID OPENINGS, A PISTON-TYPE PACKING RING ARRANGED COAXIALLY IN EACH OF THE RESPECTIVE OPENINGS IN SAID HOUSING, THE REAR SIDE OF THE PACKING RING BEING UNDER THE PRESSURE OF THE FLOWING MEDIUM AND ALSO UNDER SPRING PRESSURE, AND MEANS FOR SEALING THE OUTER PERIPHERY OF THE PACKING RINGS, SAID MEANS COMPRISING OPPOSITELY SPRING PRESSED INTERENGAGING CONICAL WEDGE RINGS WHICH ARE LOADED BY THE SPRING PRESSURE AND BY THE PRESSURE OF THE FLOWING MEDIUM AND ARE OF RELATIVELY SMALL VOLUME AND CONSIST OF HEAT-STABLE AND CHEMICALLY STABLE SYNTHETIC PLASTIC MATERIAL.
References Cited (Backward Citations)
US2558087A
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US2548128A
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US2747834A
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US2919886A
Cited
US2946552A
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FR1222752A
Cited
US2929606A
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FR1208681A
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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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |