Patent US3363645A successfully refreshed from Google Patents.
US3363645A
Expired / Lapsed
US
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Check plate with reinforced sealing member
Assignee: MARLIN VALVE Inc HOUSTON TEXAS A TEXAS CORP
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Filing: 1963-10-21
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Granted: 1968-01-16
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Sheldon M Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:38
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16K; F16K15/00; F16K15/02; F16K15/03; F16K27/00; F16K27/02; F16K27/0209; F16K27/0218; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7857; Y10T137/7898
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
A CHECK VALVE COMPRISING A SUBSTANTIALLY ANNULAR BODY MEMBER, A CLOSURE MEMBER JOURNALED IN THE BODY MEMBER FOR ROTATION WITH RESPECT THERETO IN ONE DIRECTION TO PROVIDE AN OPEN POSITION FOR THE VALVE, VALVE SEAT MEANS PROVIDED IN THE BODY FOR COOPERATION WITH THE CLOSURE MEMBER FOR LIMITING THE ROTATION OF THE CLOSURE MEMBER IN AN OPPOSITE DIRECTION TO PROVIDE A CLOSED POSITION FOR THE VALVE, SAID CLOSURE MEMBER COMPRISING A PLATE MEMBER SECURED TO A RING MEMBER WHEREBY ONE PORTION OF THE PLATE MEMBER EXTENDS RADIALLY OUTWARD FROM THE RING MEMBER THROUGHOUT A PORTION OF THE OUTER PERIPHERY
References Cited (Backward Citations)
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US1346887A
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US1682075A
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US1979351A
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US2847181A
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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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |