Patent ID: 6808159
Filing Date: 2004-10-26
Classification: F16K,Y10T

Abstract:
A non-refillable valve adapted for use with a pressure container, said valve comprising:a valve body having an inner surface defining a longitudinally extending chamber extending therethrough, said chamber having a lower portion communicating with the pressure container to allow selective filling and discharge of said container, said chamber including a valve seat positioned in said lower portion of said chamber, said inner surface having a concentrically oriented protrusion extending from said inner surface into said chamber, and a transverse opening formed in said valve body and communicating with said valve chamber, said protrusion intersecting said transverse opening; a valve stem disposed in said chamber and being movable in said chamber, said valve stem including a valve core communicating with said valve stem, said valve core being independently movable in said chamber relative to said valve stem, said valve core including a flange; and at least one O-ring abutting said inner surface of said valve body for sealing said valve stem with respect to said valve body; wherein said valve operates to allow fluid to flow through said opening and chamber to fill the container when said valve stem is in a first position, and wherein the valve core is in an uncompressed state within said chamber when said valve stem is in said first position.