Patent ID: 8157243
Filing Date: 2012-04-17
Classification: B29C,B29L,F16K,Y10T

Abstract:
1. An evacuation valve for a liquid medium metering device comprising an insert molded seal and seal holder unit, wherein: said seal holder unit consists of a cup-like body having an outer surface, said seal holder unit defining an open chamber and an axial through hole communicating with said open chamber for passage of an injectable seal-forming pliable material, said open chamber including an inwardly extending, flanged lip dividing said open chamber into axially spaced inner and outer cavities; said seal being formed upon injection of said injectable seal-forming pliable material into an inner surface of the open chamber of said seal holder unit, to thereby provide said evacuation valve having said seal holder unit, wherein said seal is formed of said seal-forming pliable material restrained from axial and rotational movement relative to the inner surface of said open chamber of said seal holder unit and said flanged lip.