Drive apparatus for installing flexible pipe through in-situ pipe

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United States of America Patent

PATENT NO 9546753
APP PUB NO 20130330130A1
SERIAL NO

13966482

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Importance

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Abstract

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Pusher apparatus and a method of using the apparatus inserts a flexible liner into an in-situ pipe. At least a pair of contra-rotating resilient drive assemblies, having a nip therebetween, drive the liner into the pipe. A guide tube can extend between the drive assemblies and the pipe. A pull head can be affixed to a leading end of the liner and adapted for sealing within a bore of the pipe and pressured fluid can be applied to pull a leading end of the liner into the pipe while the pusher pushes. The contra-rotating resilient drive assemblies can be one or more pair of opposing wheels or opposing tracks. Track assemblies can be mounted to a frame which is movable on rails and restrained with a load cell for measuring reactive forces while pushing. The rails can be angled for aligning the nip with the pipe.

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goss, Chris Turner Valley, CA 6 34

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