Patent Number: 6,305,430

Title: Reinforcement structure for pipe

Abstract: A reinforcement structure of pipe comprises a hard resin to be insertedinto a pipe portion to be reinforced and protruded members protruded fromthe hard resin and having a slightly larger diameter than an insidediameter of the pipe portion, the protruded members being formed of afoaming resin material and the protruded members pressed into the pipeportion being foamed and expanded to seal between an internal surface ofsaid pipe and an external surface of at least one of said core member.

Inventors: Ishikawa; Masahiro (Saitama, JP)

Assignee:

International Classification:

Expiration Date: 10/23/2013