Method of making a valve

Claim 1

A process for molding an integral housing about a preformed valve component to form a completed valve comprising the steps of; providing a preformed valve component having a passageway therethrough and a preformed annular elastomeric seal adapted for sealable engagement with said preformed valve component; securing said seal firmly against said preformed valve component with a seal tool having a plurality of spaced fingers for applying pressure at a plurality of spaced locations around the circumference of said seal; providing blocking means for substantially blocking said passageway against the entrance of molten plastic during molding; providing core means for forming inlet and outlet bores on each side of said valve component; inserting said valve component, seal means, seal tool, blocking means and core means into a mold having relieved surfaces corresponding to the desired exterior shape of the housing; molding said housing with a suitable plastic material about said valve component, seal means, seal tool, blocking means and core means during which time said fingers firmly hold said sealing means against said component; removing said seal tool, blocking means and core means after the plastic housing is hardened, and removing the completed valve from said mold, said plastic material between said spaced fingers holding said sealing means intimately against said component after said tool has been removed.