Patent ID: 7568498
Filing Date: 2009-08-04
Classification: F16K,Y10T

Abstract:
1. A check valve comprising: a valve body including a flowpath extending therethrough and a pair of stop supports extending axially therefrom, the valve body comprising an engineered composite; a stop mechanism integrally formed with the valve body and extending between the pair of stop supports, the stop mechanism comprising the engineered composite; a flapper rotationally coupled to the valve body and configured to be selectively moveable between an open and closed position in response to a pressure differential thereacross, the flapper comprising the engineered composite; and a protrusion disposed on the flapper inwardly from an outer periphery of the flapper, the protrusion comprising an elastomeric material integrally molded with the engineered composite of the flapper and configured to contact the stop mechanism when the flapper is in the open position, wherein: the flapper has a first side, a second side, a depression formed in the first side, and a mount hole extending between the first side and the second side, and the protrusion has a first portion disposed in the mount hole and a second portion disposed in the depression.