Patent ID: 6135508
Filing Date: 2000-10-24
Classification: F16L

Abstract:
A pipe fitting for pipelines comprisinga body made of a first material,at least one seating in said body for receiving an end of a pipe to be coupled made of a second material, different from said first material,a seating surface of said at least one seating for coming into contact with a surface of the pipe end,said seating surface being adapted to support the end of the pipe to be coupled to said body and being adapted to cover an entire end area of the pipe to be coupled to said body,said at least one seating being entirely composed of a material including at least a portion of a reactive adhesive material having a chemical adhesion reaction on reaching of a predetermined temperature,an electric winding for heating the reactive adhesive material of said at least one seating when an electric current passes therethrough so that said predetermined temperature is reached,the at least one seating, including said seating surface, being formed as a sleeve incorporating the electric winding at least partly, and the sleeve, in turn, being anchored in the body so that said sleeve, upon reaching said predetermined temperature chemically reacts and chemically bonds with said body and is adapted to chemically react with and chemically bond with the end of the pipe, forming an indissoluble chemical adhesive link with said body and is adapted to form an indissoluble chemical adhesive link with the end of the pipe.