US3378026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricated valve with means to relieve excessive sealant pressure
Assignee: Cooper Industries LLC
•
Filing: 1964-03-26
•
Granted: 1968-04-16
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 John P Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:17
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673; F16K5/08; F16K5/22; F16K5/227; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4442; Y10T137/6198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A VALVE, COMPRISING A BODY HAVING A FLOWWAY THERETHROUGH, A VALVE MEMBER MOVABLE WITHIN THE BODY FOR OPENING AND CLOSING THE FLOWWAY, A SEAT WITHIN THE FLOWWAY ON ONE SIDE OF THE VALVE MEMBER AND HAVING A GROOVE ABOUT ITS INNER END FOR DISPOSAL OPPOSITE SAID ONE SIDE OF THE VALVE MEMBER, MEANS PROVIDING A RESULTANT OUTWARDLY FACING PRESSURE RESPONSIVE AREA ON THE SEAT BODY WHICH IS RESPONSIVE TO FLUID PRESSURE TO URGE THE INNER END OF THE SEAT AGAINST THE VALVE MEMBER, BUT WHICH IS SMALLER THAN THE INWARDLY FACING PRESSURE RESPONSIVE AREA OF THE GROOVE, AND PASSAGEWAY MEANS FOR INTRODUCING LUBRICANT AT A DESIRED PRESSURE TO THE OUTWARDLY AND INWARDLY FACING PRESSURE RESPONSIVE AREAS ON THE SEAT SO AS TO SO URGE THE INNER END OF THE SEAT AGAINST THE VALVE MEMBER UNTIL THE PRESSURE OF SAID LUBRICANT REACHES A PREDETERMINED VALUE.
Claim 2
Dependent Claim
144 words
A VALVE, COMPRISING A BODY HAVING A FLOWWAY THERETHROUGH, A VALVE MEMBER MOVABLE WITHIN THE BODY FOR OPENING AND CLOSING THE FLOWWAY, A SEAT WITHIN THE FLOWWAY ON ONE SIDE OF THE VALVE MEMBER AND HAVING A GROOVE ABOUT ITS INNER END FOR DISPOSAL OPPOSITE SAID ONE SIDE OF THE VALVE MEMBER, MEANS PROVIDING A RESULTANT OUTWARDLY FACING PRESSURE RESPONSIVE AREA ON THE SEAT BODY WHICH IS RESPONSIVE TO FLUID PRESSURE TO URGE THE INNER END OF THE SEAT AGAINST THE VALVE MEMBER, BUT WHICH IS SMALLER THAN THE INWARDLY FACING PRESSURE RESPONSIVE AREA OF THE GROOVE, AND PASSAGEWAY MEANS FOR INTRODUCING LUBRICANT AT A DESIRED PRESSURE TO THE OUTWARDLY AND INWARDLY FACING PRESSURE RESPONSIVE AREAS ON THE SEAT SO AS TO SO URGE THE INNER END OF THE SEAT AGAINST THE VALVE MEMBER UNTIL THE PRESSURE OF SAID LUBRICANT REACHES A PREDETERMINED VALUE.
References Cited (Backward Citations)
US3123078A
Cited
US2030458A
Cited
US2837308A
Cited
US3135285A
Cited
US3132837A
Cited
US3078865A
Cited
US3181552A
Cited
US3215157A
Cited
US3241808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |