Compound pressure sealant-sealed valve
First Claim
15. IN A SEALANT SEALED VALVE, A HOUSING HAVING A FLOW PORT, A TWO-SIDED CLOSURE THEREFOR MOVABLE IN AT LEAST TWO PLANES RELATIVE TO THE FLOW PORT, A CLOSURE SEAT SLIDABLY MOUNTED ABOUT SAID FLOW PORT AND NORMALLY RESILIENTLY URGED AGAINST SAID CLOSURE, SEALANT SEALING FACES DISPOSED BETWEEN EACH SIDE OF SAID CLOSURE AND SEAT, A PAIR OF SEALANT RESERVOIRS IN COMMUNICATION WITH SAID FACES, MEANS RESPONSIVE TO LINE PRESSURE WHEN THE CLOSURE IS IN FLOW PORT-CLOSING POSITION IMPARTING MOVEMENT TO SAID SEAT WHEREBY SEALANT IS FORCED FROM ONE OF SAID RESERVOIRS TO SAID SEALING FACES, AND ADDITIONAL SEALANT RESERVOIR MEANS INTERIORLY OF SAID HOUSING RESPONSIVE TO LINE PRESSURE TO AUTOMATICALLY TRANSFER A SUPPLY OF SEALANT THEREFROM TO SAID ONE RESERVOIR.
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Accused Products
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Citations
15 Claims
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15. IN A SEALANT SEALED VALVE, A HOUSING HAVING A FLOW PORT, A TWO-SIDED CLOSURE THEREFOR MOVABLE IN AT LEAST TWO PLANES RELATIVE TO THE FLOW PORT, A CLOSURE SEAT SLIDABLY MOUNTED ABOUT SAID FLOW PORT AND NORMALLY RESILIENTLY URGED AGAINST SAID CLOSURE, SEALANT SEALING FACES DISPOSED BETWEEN EACH SIDE OF SAID CLOSURE AND SEAT, A PAIR OF SEALANT RESERVOIRS IN COMMUNICATION WITH SAID FACES, MEANS RESPONSIVE TO LINE PRESSURE WHEN THE CLOSURE IS IN FLOW PORT-CLOSING POSITION IMPARTING MOVEMENT TO SAID SEAT WHEREBY SEALANT IS FORCED FROM ONE OF SAID RESERVOIRS TO SAID SEALING FACES, AND ADDITIONAL SEALANT RESERVOIR MEANS INTERIORLY OF SAID HOUSING RESPONSIVE TO LINE PRESSURE TO AUTOMATICALLY TRANSFER A SUPPLY OF SEALANT THEREFROM TO SAID ONE RESERVOIR.
Specification
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- Resources
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Current AssigneeSmith International Incorporated (SLB)
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Original AssigneeAlexander S. Volpin
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InventorsVolpin, Alexander S.
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Application NumberUS04/423,271Time in Patent Office1,023 DaysField of SearchUS Class Current137/246.12CPC Class CodesF16K 3/36 Features relating to lubric...Y10T 137/4365 Plural feedY10T 137/4372 Line pressure feedY10T 137/4435 Spring biased piston feed
