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Class Information
Number: 405/175
Name: Hydraulic and earth engineering > Subterranean or submarine pipe or cable laying, retrieving, manipulating, or treating > By means advancing along terrain and guiding pipe or cable into subterranean position > Condition responsive
Description: 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.










Patents under this class:

Patent Number Title Of Patent Date Issued
8231306 Advancement of pipe elements in the ground Jul. 31, 2012
8047709 Method and system for interface detection Nov. 1, 2011
7607863 Automated pipe-laying method and apparatus Oct. 27, 2009
7384213 Apparatus and method for constructing a curvilinear structure in an excavation Jun. 10, 2008
7186059 Padding machine and method of use Mar. 6, 2007
6736216 Laser-guided construction equipment May. 18, 2004
6616378 Device and method for storing and protecting data relating to pipe installation Sep. 9, 2003
6332738 Fiber optic cable installation method and apparatus Dec. 25, 2001
6280119 Apparatus and method for placing and engaging elongate workpieces Aug. 28, 2001
5993115 Pipeline trenching and laying device Nov. 30, 1999
5961252 Underground utility installation tension monitoring arrangement and method Oct. 5, 1999
5145290 Pipe-laying apparatus Sep. 8, 1992
4927294 Method and equipment for laying an elongated element underground May. 22, 1990
4744696 Cable laying apparatus May. 17, 1988
4741646 Machine for laying conduct and methods for use thereof May. 3, 1988
4714381 Machine for laying conduit and methods for use thereof Dec. 22, 1987
4692063 System to control tension in a cable during underground placement Sep. 8, 1987
4643615 Process and device for obtaining data relative to the position in a vertical plane of a supple pipe in the process of being buried Feb. 17, 1987
4492492 Guiding method for cable burying device and a device therefor Jan. 8, 1985
4293238 Ditchless drainlayer Oct. 6, 1981
4249630 Plow guidance system Feb. 10, 1981
4244123 Guidance device for drain tile laying machine Jan. 13, 1981
4031709 Tile degapper Jun. 28, 1977
4027486 Adjustably submersible breakwater Jun. 7, 1977











 
 
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