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

• Current Assignee: Continental Bank NA (Bank of America Corp.), Robert A. Elliott
• Original Assignee: Continental Bank NA (Bank of America Corp.), Robert A. Elliott
• Inventors: BANK AND CONTINENTAL ILLINOIS, Elliott, Robert A.
• Application Number:
  US04/094,193
• Time in Patent Office: 762 Days
• US Class Current: 137/102
• CPC Class Codes: F15B 13/04 for use with a single servomotor
• CPC Class Codes: F16K 11/105 Three-way check or safety valves with two or more closure members
• CPC Class Codes: F16K 15/1402 having an integral flexible member cooperating with a plurality of seating surfaces
• CPC Class Codes: F16K 15/144 the closure elements being fixed along all or a part of their periphery
• CPC Class Codes: F16K 17/02 opening on surplus pressure on one side; closing on insufficient pressure on one side check valves F16K15/00
• CPC Class Codes: Y10T 137/2544 Supply and exhaust type
• CPC Class Codes: Y10T 137/784 Integral resilient member forms plural valves
• CPC Class Codes: Y10T 137/7843 Integral resilient member forms plural valves
• CPC Class Codes: Y10T 137/7866 Plural seating
• CPC Class Codes: Y10T 137/7867 Sequential

Claims

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.