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Class Information
Number: 405/159
Name: Hydraulic and earth engineering > Subterranean or submarine pipe or cable laying, retrieving, manipulating, or treating > Submerging, raising, or manipulating line of pipe or cable in or from marine environment > Entrenched or buried
Description: Method or apparatus wherein the string or conduit is positioned beneath the bottom earth surface of the body of water.










Sub-classes under this class:

Class Number Class Name Patents
405/164 By towing submerged sled with attached plow and pipe or cable guide 40
405/160 Condition responsive 22
405/161 Entrenching or burying apparatus guided by pre-positioned pipe or cable 35


Patents under this class:
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Patent Number Title Of Patent Date Issued
8668406 Subsea cable installation Mar. 11, 2014
8430601 System for deploying fabric cloth in marine sediment Apr. 30, 2013
8328466 Buoyancy stabilized underwater plow and methods for use Dec. 11, 2012
8083437 Underwater trenching apparatus Dec. 27, 2011
7674072 Connection between a lateral and main pipe and method for making same Mar. 9, 2010
7637696 Underwater trenching apparatus Dec. 29, 2009
7520696 Vehicle for installing a cable in a ground formation Apr. 21, 2009
7147402 Submarine pipeline spoiler Dec. 12, 2006
7101116 Cable or pipe retrieval and burial apparatus and methods Sep. 5, 2006
7025534 Marine seismic surveying Apr. 11, 2006
6837653 Ploughs Jan. 4, 2005
6821054 Method and system for laying pipe through the use of a plow Nov. 23, 2004
6679655 Permafrost support system and method for vacuum-insulated pipe Jan. 20, 2004
6374519 Dredging apparatus Apr. 23, 2002
6220786 Underwater burial apparatus Apr. 24, 2001
6116818 Underwater plow apparatus and method Sep. 12, 2000
5971665 Cable-laying apparatus and method Oct. 26, 1999
5755530 Underwater cable burial machine having improved cable laying apparatus May. 26, 1998
5722793 Method and device for continuously laying and burying a flexible submarine conduit Mar. 3, 1998
5707174 Underwater cable burial machine using a single cable for towing and lifting Jan. 13, 1998
H1642 Wear and impact tolerant plow blade Apr. 1, 1997
5100260 Cable burying equipment Mar. 31, 1992
5088857 Scavenging apparatus for embedding cables or the like into the soil of waters Feb. 18, 1992
4877355 Underwater cable laying system Oct. 31, 1989
4844658 Apparatus for burying pipe under water Jul. 4, 1989
4802793 Pipeline or cable plough Feb. 7, 1989
4787777 Method and device for progressively producing an underwater laying-out channel Nov. 29, 1988
4758116 Multi-blade ditching machine Jul. 19, 1988
4749308 Self-propelled underwater cable burying machine Jun. 7, 1988
4721409 Method and device for progressively producing an underwater laying-out channel Jan. 26, 1988
4712946 Assembly and installation of pipes Dec. 15, 1987
4648745 Method and device for burying a conduit in the bottom of a waterbed Mar. 10, 1987
4616955 Method and apparatus for encasing pipeline or cable Oct. 14, 1986
4615645 Pipeline trenching Oct. 7, 1986
4588329 Propulsion method and apparatus for advancing a marine pipeline excavation shield May. 13, 1986
4585372 Pipeline plough with lifting assemblies Apr. 29, 1986
4575280 Underwater trencher with pipelaying guide Mar. 11, 1986
4545139 Under ice pipelay apparatus and method Oct. 8, 1985
4488836 Method and apparatus for embedding a pipe in a trench in weak ground Dec. 18, 1984
4487230 Increasing the output of a pipeline anode Dec. 11, 1984
4409747 Digging apparatus Oct. 18, 1983
4400115 Method for depositing material on the ocean bed and apparatus for performing the same Aug. 23, 1983
4395158 Method and apparatus for entrenching an enlongated under-water structure Jul. 26, 1983
4384415 Trenching plow May. 24, 1983
4345854 Apparatus for laying underwater pipelines Aug. 24, 1982
4342526 Submersible backfill machine Aug. 3, 1982
4312144 Multi-blade ditching machine Jan. 26, 1982
4193713 Method and apparatus for covering or filling a trench on the sea bottom Mar. 18, 1980
4190382 Separable trenching apparatus Feb. 26, 1980
4154551 Flow-through swivel pipe joint May. 15, 1979

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