Patent ID: 6443421
Filing Date: 2002-09-03
Classification: B29C,F16K

Abstract:
A poppet valve assembly for mounting in a mold comprising a valve body member having a valve seat, a poppet valve member having a valve stem and a coil spring for seating said poppet valve member in said valve seat, a cross pin extending through said stem at a position spaced from said valve seat characterized by a movable sleeve member mounted over said stem and inside of said coil spring for movement with said poppet valve member, a radially outward flange on said sleeve member positioned over said cross pin and providing a seat for one end of said coil spring opposite to said valve seat end of said valve body member, said sleeve member having an outer diameter substantially the same as an inner diameter of said valve body member for sliding engagement with said poppet valve upon opening and closing of said poppet valve assembly whereby said sleeve member guides said valve stem preventing axial angular displacement of said valve stem by said cross pin extending outwardly from said sleeve member through said radially outward flange into slots in said valve body member to guide and limit movement of said poppet valve member.