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Exhaust valve

  • US 3,084,707 A
  • Filed: 03/08/1961
  • Issued: 04/09/1963
  • Est. Priority Date: 03/08/1961
  • Status: Expired due to Term
First Claim
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1. IN A HIGH-SPEED, QUICK RELEASE VALVE, IN COMBINATION:

  • A UNITARY VALVE MEMBER OF FLEXIBLE MATERIAL;

    SAID VALVE MEMBER HAVING A PERIPHERAL BEAD AND A CENTRAL PLUG, AND AN INTERMEDIATE RELATIVELY THIN ANNULUS;

    SAID INTERMEDIATE ANNULUS BEING UNITED INTEGRALLY ALONG ITS OUTER EDGE TO SAID BEAD, AND ALONG ITS INNER EDGE TO SAID PLUG;

    A HOUSING COMPRISING, AN INLET CUP OPENING IN ONE DIRECTION AND AN OUTLET AND DISCHARGE CUP OPENING IN THE OTHER DIRECTION;

    SAID CUPS HAVING PERIPHERAL LIPS REPRESENTING ABUTMENT FACES TO EACH OTHER;

    SAID CUPS IMMEDIATELY INSIDE SAID ABUTMENT FACES, HAVING ANNULAR GROOVES OPENING TOWARD EACH OTHER;

    SAID GROOVES JOINTLY DEFINING AN ANNULAR SPACE FITTING AND GRIPPING SAID BEAD TIGHTLY;

    OPPOSED INLET AND DISCHARGE PASSAGES IN SAID CUPS;

    SAID PASSAGES BEING COAXIAL WITH SAID CUPS AND DIAPHRAGM;

    SAID PLUG HAVING SUBSTANTIALLY SMOOTH ABUTMENT FACES AT ITS AXIAL EXTREMITIES NEAR ITS OUTER EDGE;

    SAID PASSAGES HAVING SMOOTH ANNULAR ABUTMENT SEATS POSITIONED TO RECEIVE THE ADJACENT FACES OF SAID PLUG;

    SAID INLET CUP BEING RELATIVELY SHALLOW AND HAVING AN INWARDLY BULGING BREAST IMMEDIATELY INSIDE ITS LIP;

    SAID OUTLET AND DISCHARGE CUP HAVING A RELATIVELY DEEP ANNULAR GROOVE EXTENDING AXIALLY OUTSIDE SAID DISCHARGE PASSAGE AWAY FROM THE OTHER CUP;

    SAID OUTLET AND DISCHARGE CUP HAVING A LATERAL OUTLET PASSAGE COMMUNICATING WITH SAID DEEP ANNULAR GROOVE, AND ADAPTED TO BE CONNECTED TO A POWER CYLINDER OR THE LIKE;

    SAID ANNULUS HAVING A MULTIPLICITY OF OPENINGS INTERMEDIATE ITS INNER AND OUTER EDGES;

    SAID APERTURES BEING POSITIONED TO LIE IN THE ANNULAR PORTION HUGGING SAID BREAST WHEN THERE IS PRESSURE BELOW SAID ANNULUS IN EXCESS OF THAT ABOVE THE ANNULUS, AND SAID ANNULUS AND PLUG HAVE BEEN MOVED UP INTO DISCHARGE POSITION WITH SAID PLUG IN ABUTMENT WITH SAID INLET PASSAGE;

    WHEREBY SAID APERTURES ARE CLOSED BY SAID BREAST AND A WIDE OPEN COMMUNICATION IS ESTABLISHED BETWEEN SAID OUTLET PASSAGE AND SAID EXHAUST PASSAGE;

    SAID APERTURES LYING OUT IN SAID DEEP ANNULAR GROOVE WHEN THERE IS PRESSURE ABOVE SAID PLUG AND ANNULUS IN EXCESS OF THAT BELOW AND SAID PLUG IS IN ABUTMENT WITH SAID DISCHARGE PASSAGE;

    WHEREBY, WHEN SAID OUTLET PASSAGE IS CONNECTED TO A POWER CYLINDER OR THE LIKE, ONLY RELATIVELY LIGHT PRESSURE DIFFERENCES CAN BE DEVELOPED DURING THE POWER STROKE;

    SAID INLET CUP BEING SHAPED TO CUSHION ALL SAID ANNULUS AND PLUG, EXCEPT FOR THE CENTRAL AXIAL INLET PASSAGE, WITHOUT DISTORTING SAID ANNULUS BEYOND ITS ELASTIC LIMIT, DURING THE INITIAL PORTION OF THE RETURN STROKE WHEN THE FLUID PRESSURE BELOW SAID VALVE MEMBER IS AT OR NEAR MAXIMUM LOAD.

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