.~ 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.
