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Class Information
Number: 405/161
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 > Entrenching or burying apparatus guided by pre-positioned pipe or cable
Description: Method or apparatus wherein the string or conduit is initially positioned on and along the bottom of the body of water, and is subsequently positioned beneath the bottom by a device having means to engage the string or conduit and guide the device along the same.










Sub-classes under this class:

Class Number Class Name Patents
405/162 With apparatus buoyancy control 23
405/163 With bottom fluidizing means 56


Patents under this class:

Patent Number Title Of Patent Date Issued
7520696 Vehicle for installing a cable in a ground formation Apr. 21, 2009
7025534 Marine seismic surveying Apr. 11, 2006
6837653 Ploughs Jan. 4, 2005
6220786 Underwater burial apparatus Apr. 24, 2001
6116818 Underwater plow apparatus and method Sep. 12, 2000
6061932 Steerable underwater plow with movable body member May. 16, 2000
6050009 Steerable underwater plow Apr. 18, 2000
6022173 Underwater trenching system Feb. 8, 2000
5639185 Underwater trenching system Jun. 17, 1997
5632574 Backfilling device and apparatus therefor May. 27, 1997
5601383 Excavation method and apparatus for accessing underground pipes of pipelines for gas, oil, and the like for maintenance and/or restoration Feb. 11, 1997
5456551 Underwater trenching system Oct. 10, 1995
4806049 Process and device for temporarily supporting the walls of a trench Feb. 21, 1989
4802793 Pipeline or cable plough Feb. 7, 1989
4749308 Self-propelled underwater cable burying machine Jun. 7, 1988
4714378 Apparatus and method for trenching subsea pipelines Dec. 22, 1987
4643613 Underwater trenching and pipe-laying devices Feb. 17, 1987
4542334 Induced-signal capacitance effect cable tracking sensor Sep. 17, 1985
4537530 Marine cable burying method and device therefor Aug. 27, 1985
4470720 Underwater trenching & pipelaying apparatus Sep. 11, 1984
4428132 Trenching plow with plow carriage on curved supporting track Jan. 31, 1984
4395158 Method and apparatus for entrenching an enlongated under-water structure Jul. 26, 1983
4389139 Oscillating jet head underwater trenching apparatus Jun. 21, 1983
4384808 Under-water cable burying device May. 24, 1983
4362436 Method and device for embedding cables or the like into an underwater ground Dec. 7, 1982
4338042 Apparatus for the subaqueous entrenching of pipes Jul. 6, 1982
4329793 Soil moving device May. 18, 1982
4314414 Trench digging apparatus and bearing therefor Feb. 9, 1982
4274757 Immersion/suspension method for the submarine deployment of high voltage transmission cable Jun. 23, 1981
4245927 Laying of pipes or cables in a bed of material Jan. 20, 1981
4141667 Underwater pipeline laying method and apparatus Feb. 27, 1979
4087981 Buoyant self-propelled underwater trenching apparatus May. 9, 1978
4043136 System and method for installing production casings Aug. 23, 1977
3995439 Device for embedding objects such as continuous pipes into water bottoms Dec. 7, 1976
3990377 Self-propelled machine for sea-bed work Nov. 9, 1976











 
 
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