US PATENT SUBCLASS 405 / 164
.~.~.~ By towing submerged sled with attached plow and pipe or cable guide

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

154  DF  PIPE OR CABLE LAYING, RETRIEVING, OR UNDERWATER MANIPULATION {6}
158  DF  .~ Submerging, raising, or manipulating line of pipe or cable in or from marine environment {7}
159  DF  .~.~ Entrenched or buried {3}
164.~.~.~ By towing submerged sled with attached plow and pipe or cable guide {1}
165  DF  .~.~.~.~> With means to forcibly feed or to control tension in pipe or cable

DEFINITION

Classification: 405/164

By towing submerged sled with attached plow and pipe or cable guide:

(under subclass 159) Method or apparatus wherein the string or conduit is positioned beneath the bottom by a device having means by which it may be connected to a vessel to pull the device along the bottom, and further comprising a digging tool having integral or attached means for restricting lateral movement of the string or conduit as the same travels from a supply to its final position beneath the bottom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

180+, for a trench forming tool with attached pipe or cable guide employed to bury the pipe or cable at other than a submerged site.