Patent US3219447A successfully refreshed from Google Patents.
Patent US3485475A successfully refreshed from Google Patents.
US3485475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical rotary valve
Assignee: Whittaker Corp
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Filing: 1964-01-21
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Granted: 1969-12-23
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Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 William A Moore
- 👤 Edward C Skei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:28
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/58; F16; F16K; F16K5/00; F16K5/06; F16K5/0621; F16K5/08; F16K5/14; F16K5/20; F16K5/204; F05; F05D; F05D2250/00; F05D2250/20; F05D2250/24; F05D2250/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A VALVE COMPRISING A SPHERICAL HOUSING HAVING AN INLET AND A DIAMETRICALLY ALIGNED OUTLET, A SPHERICAL SEGMENT CLOSURE MEANS MOVABLY MOUNTED IN SAID HOUSING FOR PIVOTAL MOVEMENT BETWEEN POSITIONS CLOSING AND OPENING COMMUNICATION BETWEEN SAID INLET AND OUTLET, A TUBULAR MEMBER EXTENDING FROM SAID INLET TOWARD AND PROXIMATE TO SAID OUTLET, A SEAL MEANS FOR SEALING BETWEEN SAID TUBULAR MEMBER AND SAID CLOSURE MEANS IN THE CLOSED POSITION, MEANS FOR EXTENDING SAID SEAL MEANS TO ENGAGE AND SEAL WITH SAID OUTLET IN THE OPEN POSITION OF SAID CLOSURE MEANS, AND A PLURALITY OF ROLLERS MOUNTED IN SAID HOUSING SURROUNDING SAID OUTLET AND ENGAGING SAID CLOSURE MEANS FOR SUPPORTING SAID CLOSURE MEANS IN THE CLOSED POSITION AND EACH SAID ROLLER HAVING ITS AXES SEPARATELY ORIENTED WITH RESPECT TO THE SURFACE OF SAID CLOSURE MEANS AT THE LOCATION OF THAT ROLLER FOR ROLLING SUPPORT OF SAID CLOSURE MEANS DURING MOVEMENT TOWARD THE OPEN POSITION.
Claim 2
Dependent Claim
153 words
IN A VALVE COMPRISING A SPHERICAL HOUSING HAVING AN INLET AND A DIAMETRICALLY ALIGNED OUTLET, A SPHERICAL SEGMENT CLOSURE MEANS MOVABLY MOUNTED IN SAID HOUSING FOR PIVOTAL MOVEMENT BETWEEN POSITIONS CLOSING AND OPENING COMMUNICATION BETWEEN SAID INLET AND OUTLET, A TUBULAR MEMBER EXTENDING FROM SAID INLET TOWARD AND PROXIMATE TO SAID OUTLET, A SEAL MEANS FOR SEALING BETWEEN SAID TUBULAR MEMBER AND SAID CLOSURE MEANS IN THE CLOSED POSITION, MEANS FOR EXTENDING SAID SEAL MEANS TO ENGAGE AND SEAL WITH SAID OUTLET IN THE OPEN POSITION OF SAID CLOSURE MEANS, AND A PLURALITY OF ROLLERS MOUNTED IN SAID HOUSING SURROUNDING SAID OUTLET AND ENGAGING SAID CLOSURE MEANS FOR SUPPORTING SAID CLOSURE MEANS IN THE CLOSED POSITION AND EACH SAID ROLLER HAVING ITS AXES SEPARATELY ORIENTED WITH RESPECT TO THE SURFACE OF SAID CLOSURE MEANS AT THE LOCATION OF THAT ROLLER FOR ROLLING SUPPORT OF SAID CLOSURE MEANS DURING MOVEMENT TOWARD THE OPEN POSITION.
References Cited (Backward Citations)
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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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |