发明名称 METHOD AND DEVICE FOR REPAIRING OR REINFORCING AN UNDERGROUND PIPE
摘要 A method for reinforcing or repairing a pipe pulls a liner assembly with a flexible smooth bore liner and a semi-rigid helix that gives non-collapsible characteristics within the damaged pipe for both linear pipe sections and curved pipe sections . The existing pipe is first cleaned with a specially designed brush with two wooden spheres at each end of the brush to prevent snagging or jamming during brush operations. The liner assembly is then pulled through the total length of the pipe and anchored at each end with retaining sleeves, which are sandwiched and glued within the liner assembly and the inside diameter of the existing pipe.
申请公布号 WO2006121543(A3) 申请公布日期 2009.06.11
申请号 WO2006US13025 申请日期 2006.04.05
申请人 COSBAN, WILLIAM, C. 发明人 COSBAN, WILLIAM, C.
分类号 F16L55/18 主分类号 F16L55/18
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