Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1988-02-28
1989-10-03
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
37 83, 37 86, 405174, 405180, E02F 510
Patent
active
048712817
ABSTRACT:
A highly mobile and accurately positionable trenching tool approaches the surface below which the trench is to be dug at an angle of substantially 90.degree., enters the earth while maintaining the angle of substantially 90.degree., and continues its path of travel into the earth while maintaining the angle of substantially 90.degree., until the trenching tool reaches the intended depth of digging operation. Further, the horizontal or width displacement of the trenching tool is limited so that the entry point of the trenching tool occupies a small surface area.
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