Harvard Industries, Inc.

Stephen Palinchak

A composite hose for use in automotive air conditioning systems employing 'Refrigerant 12' (dichlorodifluoromethane) including an innermost three-ply tube having an elastomer inner tube ply, a middle tube ply of a thermoplastic polymer bonded to the inner tube ply, and an outer tube ply of an elastomer bonded to the middle tube ply. At least one textile yarn, cord or fabric reinforcement layer surrounds the three-ply tube and a specially compounded elastomer cover overlies the textile reinforcement. Suitable adhesives maybe applied between the inner and middle tube and between the middle and outer tube to provide a consolidated, co-acting tube element. A hose fitting is attached to an end of the composite hose to form a hose assembly.

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Bucyrus, OH, United States of America

Stephen Palinchak