Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1993-07-27
1996-01-09
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405154, 405156, 138 47, F16L 100, F16L 5518
Patent
active
054824044
ABSTRACT:
The apparatus and technique of the invention constitutes a stationary hydraulic jack for pushing sections of new pipe which, in turn, push a frontal cone expander to break up the old pipe and define a path for the new pipe. Frontal apparatus located in front of the new pipe and pushed thereby can include a hydraulic jack for independently advancing the cone expander without operating the stationary hydraulic jack.
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