Patent ID: 6293311
Filing Date: 2001-09-25
Classification: B29C,B29D,B29L,B32B,F16L,Y10S

Abstract:
A fluid conduit system comprising:(a) multilayer composite pipes corriprising an inner layer of an amorphous, solvent cementable thermoplastic material having a completely closed, tubular outer surface; a metallic intermediate layer and an adhesive layer between the inner layer and the metallic intermediate layer; an outer layer of in amorphous, solvent cementable thermoplastic essentially surrounding the metallic intermediate layer, and an adhesive layer between the metallic intermediate layar and the outer layer;(b) a fitting; and(c) optionally, an insert having an open ended hollow cylindrical body with an extending flange which radiates outwardly from the end of the open ended hollow cylindrical body, having an outer diameter less than the inner diameter of the multilayer composite pipe, such that said insert fits inside said composite pipe.