Pipe restraint

An improved energy absorption and pipe displacement limiting device of simple construction, ease of inspection and minimal maintenance, said device for connection between a pipe subject to movement due to dynamic loads and thermal deformation and an adjacent structure and possessing symmetric stiffness in both tension and compression which resists buckling under load being characterized by:

• an assembly which includes a central rod having a hollow cylinder mounted at each end thereof, a first hollow cylinder slidingly telescopically receiving one end of said central rod and a second hollow cylinder fixedly receiving the other end of said central rod;
• a tube frame connected to said first cylinder and having walls spaced from and surrounding an intermediate portion of the central rod for axial movement relative thereto;
• first base members mounted at opposing locations of the intermediate portion of the central rod;
• second and third base members mounted at wall locations opposite said first base forming members;
• a symmetrical arrangement of wire energy absorbing rope parallel bights, each having portions in a state of precompression fixed to said first base member and to said second base member to provide a pipe movement restraint having bi-linear spring properties;