US PATENT SUBCLASS 405 / 175
.~.~ Condition responsive


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}
174  DF  .~ By means advancing along terrain and guiding pipe or cable into subterranean position {6}
175.~.~ Condition responsive


DEFINITION

Classification: 405/175

Condition responsive:

(under subclass 174) Method or apparatus wherein the string or conduit is positioned beneath the surface by a device having means for sensing a characteristic (e.g., tension in the string or conduit, surface contour) or the occurrence of a predetermined event in the device, its environment, or the string or conduit, and regulating or modifying the operation of the device in accordance with said sensed characteristic or event.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160, for condition-responsive apparatus for entrenching a line of pipe or cable in the bottom earth surface of a body of water.