Patent ID: 7971804
Filing Date: 2011-07-05
Classification: B05B,F16K,Y10T

Abstract:
1. A check valve assembly, comprising: a conduit having an inlet end for connection to a pressurized fluid supply and an outlet end; an outlet fixture releasably coupled to the outlet end of the conduit; a sleeve mounted within the conduit, the sleeve having an internal valve seat with a central opening for fluid flow; an actuating member contained inside the conduit between the outlet fixture and the valve seat; a valve member mounted within the sleeve, the valve member comprising a disc on the opposite side of the valve seat from the outlet end of the conduit and a channeled shaft extending outward from the center of the disc and through the central opening in the internal valve seat, wherein the disc has a channel passing therethrough, the valve member being movable between an open position with the disc unseated from the valve seat allowing fluid flow along the channeled shaft and through the central opening in the valve seat and a closed position with the disc seated against the valve seat by pressurized fluid in the conduit, and wherein an outer perimeter of the disc contacts an interior surface of the sleeve both when the valve member is in the open or closed position; wherein when the outlet fixture is coupled to the outlet end of the conduit, the actuating member contacts the channeled shaft of the valve member and urges the valve member away from the valve seat and into the open position, and wherein when the outlet fixture is removed from the outlet end of the conduit, the pressurized fluid urges the valve member into the closed position with the disc seated against the valve seat.