Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With forming or cutting of pipe or cable
Patent
1998-03-02
2000-03-21
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
With forming or cutting of pipe or cable
405154, 405184, 405303, F16L 5518, F16L 100
Patent
active
060395052
ABSTRACT:
The apparatus and technique of the invention constitutes a hydraulic jack system for pushing sections of new pipe which, in turn, pushes a sleeve-cone expander arrangement to break up the old pipe and define a straight path for the new pipe. Apparatus is employed to determine the skin friction and the penetration friction, and to dispense a lubricant to reduce such frictional forces.
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