Fluid valve coupling with interlocking lugs

Claim 1

A FLUID COUPLING COMPRISING IDENTICAL COUPLING MEMBERS ADAPTED FOR INTERCONNECTION, EACH OF SAID COUPLING MEMBERS INCLUDING A VALVE HOUSING HAVING AN AXIAL BORE, A VALVE ASSEMBLY POSITIONED IN SAID VALVE HOUSING AND INCLUDING A VALVE BODY, A PORTION OF SAID VALVE BODY BEING FLARED TO PROVIDE A VALVE SEAT, AN INTERNAL SHOULDER IN THE VALVE BODY BORE INTERMEDIATE ITS LENGTH, THE ASSEMBLY FURTHER INCLUDING A MULTI-PART VALVE POSITIONED IN SAID VALVE BODY, AND MOVABLE LONGITUDINALLY WITH RESPECT THERETO, ONE END OF SAID VALVE BEING GRADUALLY ENLARGED TO FORM A TAPERED HEAD, THE PERIPHERAL PORTION OF WHICH IS COMPLEMENTAL TO, AND ADAPTED FOR ENGAGEMENT WITH, SAID VALVE SEAT, A SEALING MEMBER CONNECTED TO THE OPPOSITE END OF SAID VALVE, SAID SEALING MEMBER EXTENDING BEYOND THE LIMIT OF SAID VALVE BODY AND BEING PROVIDED WITH AN ANNULAR RECESS IN THE FRONT FACE THEREOF, INTERMEDIATE THE INNER AND OUTER PERIPHERY THEREOF, A SEALING RING POSITIONED IN THE ANNULAR RECESS AND PROTRUDING BEYOND THE FRONT FACE OF SAID SEALING MEMBER, A SPRING POSITIONED ON SAID VALVE BODY BETWEEN SAID SEALING MEMBER AND SAID INTERNAL SHOULDER IN THE VALVE BODY FOR NORMALLY HOLDING SAID VALVE HEAD IN FLUID-TIGHT ENGAGEMENT WITH SAID VALVE SEAT AND FOR FORCING SAID SEALING MEMBER BEYOND THE VALVE BODY, A FLUID PASSAGE EXTENDING AXIALLY THROUGH SAID SEALING MEMBER AND SAID VALVE TO SAID VALVE HEAD, FLUID CONDUITS EXTENDING FROM SAID FLUID PASSAGE THROUGH THE PERIPHERY OF SAID VALVE HEAD, THE COUPLING OF SAID MEMBERS COMPRESSING SAID SEALING ELEMENTS IN THEIR ANNULAR RECESSES AND EFFECTING MOVEMENT OF THE RESPECTIVE VALVE HEADS OUT OF SEALING ENGAGEMENT WITH THEIR VALVE SEATS AGAINST THE RESISTANCE OF THE SPRING OF EACH COUPLING MEMBER, TO OPEN COMMUNICATION BETWEEN SAID COUPLING MEMBERS, AND A LUG ASSEMBLY MOUNTED ON SAID VALVE BODY OF EACH MEMBER FOR COMPLEMENTAL ENGAGEMENT WITH THE LUG ASSEMBLY OF THE OPPOSED MEMBER, TO GET LOCKING WHEN SAID LUG ASSEMBLIES ARE RELATIVELY ROTATED, EACH LUG ASSEMBLY INCLUDING A CYLINDRICAL BODY ROTATABLE WITH REASPECT TO SAID VALVE AND VALVE HOUSING, AND LUGS AT RIGHT ANGLE SHAPE EXTENDING FROM A TERMINAL OF SAID CYLINDRICAL BODY, IN DIAMETRICALLY OPPOSED RELATIONSHIP, SAID TERMINAL BEING PROVIDED WITH COMPLEMENTAL LUG-RECEIVING RECESSES ADAPTED TO RECEIVE THE LUGS OF THE OPPOSED COUPLING MEMBER.