Method and apparatus for injecting foam into a pipeline,...

Details Method and apparatus for injecting foam into a pipeline,... Method and apparatus for injecting foam into a pipeline,...

B - Operations, Transporting

08

B

189/5

B08B 9/02 (2006.01) E03F 9/00 (2006.01) F16L 55/134 (2006.01) F16L 55/24 (2006.01)

Patent

CA 1045060

METHOD AND APPARATUS FOR INJECTING FOAM INTO A PIPELINE, INCLUDING AN INFLATABLE PLUG Abstract of the Disclosure Method and apparatus for injecting foam into a pipeline. Foam is produced and delivered under pressure to the inlet of a flexible foam-conducting tube. An inflatable plug slidably encircles the tube, so that the tube can be adjusted to extend any desired distance beyond the plug. The plug can be enlarged by inflation to bear against the wall of the pipe and also against the wall of the tube, so as to prevent the foam from flowing back beyond the plug.

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