F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/38 (2006.01) F16L 55/162 (2006.01) F16L 55/164 (2006.01)
Patent
CA 2163307
There is provided a suction system for use in a method of lining the internal surface of a pipe, said suction system comprises a pig receiving device to be attached to an open end of the pipe, a liquid receiving tank connected with the pig receiving device, and a suction pump connected with the liquid receiving tank. Further, a pig detecting device for detecting the passing of a pig is provided between the open end of the pipe and the pig receiving device, a suction force controlling device is provided between the pig receiving device and the liquid receiving tank, and a gas-liquid separation apparatus is provided between the liquid receiving tank and the suction pump.
Itagaki Masaaki
Toyoda Shigeru
Yagi Shuichi
Ridout & Maybee Llp
Tokyo Gas Co. Ltd.
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