Patent ID: 6450551
Filing Date: 2002-09-17
Classification: F16L

Abstract:
A ferrous pipe coupling structure for coupling nonferrous metal pipes, said coupling structure comprising:a two piece iron socket component comprising two half members being divided along a horizontal axis, wherein each of the two half members having a first semicircular groove and a second semicircular groove; a separator component dually layered of a synthetic resin layer and a nonferrous metal layer, said separator component being fitted in the first groove of the two half members, and said nonferrous metal layer having a third semicircular groove formed along an inner surface; a cylindrical packing having two ends, and sealing rings at each of the two ends, said sealing rings being fitted into the second groove of the two half members and covering an inner surface of the two half members in opposition to the packing; and nonferrous metal pipes arranged at each of the two ends of the cylindrical packing, a stopper ring or lugs arranged on a periphery of the pipes so as to fit in the first groove of the iron socket component with said nonferrous metal layer of the separator disposed between the first groove and the stopper ring or lugs; and fasteners to join the two half members of the iron socket component together after arrangement of the pipes.