Patent ID: 9551449
Date: 2017-01-24
CPC Classifications: F16L

Claim:
1. A method of repairing a straight length of pipe line comprising: taking a first liner; applying a resinous material capable of curing and hardening to the first liner; positioning at least a portion of the first liner in the straight length of pipe line; allowing the resinous material applied to the first liner to cure and harden; taking a second liner; applying a resinous material capable of curing and hardening to the second liner; inverting at least a portion of the second liner in the straight length of pipe line so as to overlap with the first liner with a hydrophilic or hydrophobic sealing member disposed about a circumferential interior of the first liner between the overlapped portion of the first and second liners; securing the hydrophilic or hydrophobic sealing member to the circumferential interior of the first liner before the inverting step; allowing the resinous material applied to the second liner to cure and harden; and wherein hydrophilic or hydrophobic sealing member comprises a material different than the first and second liners and provides a watertight seal between the portions of the first and second liners.