Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1997-08-25
1999-11-30
Graysay, Tamara
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405175, 405180, E02F 510
Patent
active
059931159
ABSTRACT:
A pipeline trenching and laying device is disclosed, having a tractor supported portion, a ripper and a pipe feed chute. The tractor supported portion supports the pipe as it passes over the tractor. A plurality of rollers are spaced and elevated in a manner that carefully controls the curvature of the pipe. A ripper, towed behind the tractor by a rigid fixed connection, cuts a trench. A pipe feed chute is in turn towed by the ripper. The pipe feed chute provides forward and rearward portions separated by an articulating joint. A following roller, having a winch attached, allows pressure to be put on the pipe to cause it to curve in a manner calculated to pass over the tractor supported portion and through the pipe feed chute without bending excessively or kinking.
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Sauerwein, Stanzet "Big AZ--One of a Kind Plow from Calgary" Apr. 1979, Construction West.
Jensen Eric
Jensen John
Graysay Tamara
Lagman Frederick
Thompson David S.
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