Quick connect and disconnect valved coupling

Claim 1

Quick connect and disconnect means, comprising: A. an inlet bushing for attachment to a pneumatically operated appliance or the like, said bushing having a liquid passage therethrough, and a. a fixed web disposed in said fluid passage, said web having a central part and openings for fluid flow past said central part, b. an internal annular flange in the passage of said inlet bushing defining an opening coaxial with said passage and spaced rearwardly of the web, c. said passage in the inlet bushing having an enlarged and tapped bore at the rear thereof; B. a tubular valve housing having a fluid flow passage therethrough, and an external annular flange on said tubular valve housing adjacent to but spaced from the forward end of said housing, the portion of the housing forwardly of the flange being removably disposed in the opening defined by the internal flange of the inlet bushing and a portion of the passage through said bushing rearwardly of the web, a forward end portion of the passage through the housing being tapped; C. a valve core having an externally threaded part screwed into the tapped forward end portion of the housing passage, said valve core including: a. a movable valve member, b. a spring normally closing said movable valve member, c. and a valve stem for said movable valve member, said valve stem extending forwardly of the forward end of the valve housing when said valve core is oPerably positioned in the passage through the valve housing; D. and a connector nut having a bore therethrough for operable reception of the valve housing and an externally threaded body portion screwed into the enlarged tapped bore of the inlet bushing, and an annular radial flange at the rear thereof, the forward end of the connector nut having a connector bore for reception of the external flange of the valve housing, said forward end of the connector nut being in substantially the same plane as the forward side of the external flange of the valve housing; E. and an O-ring seal between the valve housing and inlet bushing, the forward projecting end of the valve stem engaging the central part of the web when the connector nut is partially screwed into the tapped part of the inlet bushing and upon further screwing inwardly of the encounter nut the valve stem is moved to unseat the valve member of the valve core, said valve member being seated by the spring therefor when the connector nut is unscrewed.