Patent ID: 8479775
Filing Date: 2013-07-09
Classification: F16L

Abstract:
1. An assembly including a flexible push-on hose having a terminal end with an inner diameter, and a push-in fitting having an elongate distal end with an outer diameter marginally larger than the inner diameter of the hose terminal end, the fitting distal end being insertable under a predetermined force into the hose terminal end to connect the hose to the fitting, the hose comprising: a core tube having at least an innermost layer with an interior surface forming the inner diameter of the hose terminal end, the core tube being radially expandable upon the insertion of the fitting distal end to accommodate the outer diameter thereof, and the core tube being radially recoverable to retain the fitting distal end within the hose terminal end, the core tube innermost layer being formed of material comprising an admixture of: a resin component which is a thermoplastic polyurethane elastomer having a shore durometer of between about 60A and 98A; and an incompatibilizing agent immiscible with the resin component, the agent being effective to reduce the force necessary to insert the fitting distal end into the hose terminal end connecting the hose to the fitting, and the agent is selected from the group consisting of homopolymers and copolymers of one or more polyolefins, and combinations thereof.