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Class Information
Number: 405/181
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 > Including trench forming plow with pipe or cable guide > With depth adjustment
Description: Method or apparatus wherein the plowlike tool can be adjusted relative to its supporting structure whereby the vertical dimension of the trench can be selectively varied.










Patents under this class:

Patent Number Title Of Patent Date Issued
8047744 Conduit laying machine Nov. 1, 2011
7841802 Strand-like material laying device for cutting the ground and inserting strand-like material into the ground Nov. 30, 2010
7607863 Automated pipe-laying method and apparatus Oct. 27, 2009
7524142 Subsurface installation of tubing Apr. 28, 2009
6299381 Trencher plow for laying pipe Oct. 9, 2001
6189244 Self-cleaning narrow ditch trencher and flexible tile installer Feb. 20, 2001
6186242 Depth gauge for a vibratory plow Feb. 13, 2001
6183163 Method and apparatus for laying out a pipeline Feb. 6, 2001
6061932 Steerable underwater plow with movable body member May. 16, 2000
5988948 Underwater plough and method for varying ploughing depth Nov. 23, 1999
5741088 Apparatus for underground excavation Apr. 21, 1998
5320451 Cable laying attachment for tiller Jun. 14, 1994
5108229 Pipe installer and method for installation of pipe Apr. 28, 1992
5090141 Adjustable blade holder Feb. 25, 1992
4904116 Apparatus for making tunnels in the ground and for laying supply lines Feb. 27, 1990
4892443 Cable plow Jan. 9, 1990
4871281 Trenching tool for installing perforated pipe Oct. 3, 1989
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
4655639 Plough Apr. 7, 1987
4637755 Apparatus for burying conduit Jan. 20, 1987
4461598 Machine for installing drip irrigation conduit Jul. 24, 1984
4447173 Apparatus for burying drip irrigation tubing May. 8, 1984
4410297 Marine continuous pipe laying system Oct. 18, 1983
4293238 Ditchless drainlayer Oct. 6, 1981
4269541 Implement for the laying of cables and the like May. 26, 1981
4260290 Cable plow assembly Apr. 7, 1981
4244123 Guidance device for drain tile laying machine Jan. 13, 1981
4200410 Cable laying device Apr. 29, 1980
4140425 Cable plow assembly Feb. 20, 1979
4119157 Control for cable plows and the like Oct. 10, 1978
4114391 Tape laying trenching apparatus Sep. 19, 1978
4091629 Marine pipeline installation system May. 30, 1978
4038828 Vertical lift and control for plows Aug. 2, 1977
3952810 Slit trenching and cable laying device Apr. 27, 1976











 
 
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