Patent US4188236A successfully refreshed from Google Patents.
US3154094A
Expired / Lapsed
US
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Ball valve
Assignee: Crane Co
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Filing: 1961-10-25
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Granted: 1964-10-27
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Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 Kurt B Bredtschneider
- 👤 Joseph A Englert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0626; F16K5/0636; F16K5/0663; F16K5/0673; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038; Y10T137/6041; Y10T137/6045; Y10T137/7504; Y10T137/7668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A BALL VALVE; A VALVE CASING THEREFOR WITH INLET AND OUTLET PORTS AND A VALVE CHAMBER BETWEEN THE SAID PORTS WITH A WALL PORTION THEREOF DEFINED BY AN INTEGRAL ARCUATELY EXTENTING CRADLE PORTION; A PORTED BALL CLOSURE MEMBER ROTATABLE WITHIN THE SAID CHAMBER; A CAP FOR CLOSING THE SAID CASING, ACTUATING MEANS JOURNALLED IN THE SAID CAP FOR ROTATING SAID CLOSURE MEMBER; A PLURALITY OF ANNULAR SEATING MEANS FOR THE SAID CLOSURE MEMBER SUBSTANTIALLY DEFINING THE OUTER END LIMITS OF SAID VALVE CHAMBER; THE SAID SEATING MEANS COMPRISING AT LEAST A PAIR OF RING-LIKE MEMBERS MOUNTED IN TANDEM IN FLUID SEALING RELATION TO THE SAID CASING; AT LEAST THE INNER ONE OF SAID RING-LIKE MEMBERS BEING SUPPORTED WITHIN SAID CRADLE PORTION OF THE VALVE CHAMBER FOR PERMITTING THE REMOVAL THEREOF SIMULTANEOUSLY WITH SAID BALL CLOSURE MEMBER THROUGH AN
Claim 2
Dependent Claim
139 words
IN A BALL VALVE; A VALVE CASING THEREFOR WITH INLET AND OUTLET PORTS AND A VALVE CHAMBER BETWEEN THE SAID PORTS WITH A WALL PORTION THEREOF DEFINED BY AN INTEGRAL ARCUATELY EXTENTING CRADLE PORTION; A PORTED BALL CLOSURE MEMBER ROTATABLE WITHIN THE SAID CHAMBER; A CAP FOR CLOSING THE SAID CASING, ACTUATING MEANS JOURNALLED IN THE SAID CAP FOR ROTATING SAID CLOSURE MEMBER; A PLURALITY OF ANNULAR SEATING MEANS FOR THE SAID CLOSURE MEMBER SUBSTANTIALLY DEFINING THE OUTER END LIMITS OF SAID VALVE CHAMBER; THE SAID SEATING MEANS COMPRISING AT LEAST A PAIR OF RING-LIKE MEMBERS MOUNTED IN TANDEM IN FLUID SEALING RELATION TO THE SAID CASING; AT LEAST THE INNER ONE OF SAID RING-LIKE MEMBERS BEING SUPPORTED WITHIN SAID CRADLE PORTION OF THE VALVE CHAMBER FOR PERMITTING THE REMOVAL THEREOF SIMULTANEOUSLY WITH SAID BALL CLOSURE MEMBER THROUGH AN
References Cited (Backward Citations)
US2201895A
Cited
US3037738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |