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Separable trenching apparatus

  • US 4,190,382 A
  • Filed: 03/09/1978
  • Issued: 02/26/1980
  • Est. Priority Date: 03/09/1978
  • Status: Expired due to Term
First Claim
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1. Apparatus for entrenching an elongated pipeline and the like on the bottom of a body of water comprisinga burying sled base, includingfirst and second pontoon skids having generally parallel longitudinal axes, said pontoon skids being connected by a cross support means to straddle said pipeline,a trench cutting assembly adapted to be connected to said sled base for cutting a trench beneath said pipeline, when said pipeline lies on said water bottom, andremote connecting and disconnecting means operative in a first state for remotely connecting said cutting assembly in an operational relationship to said sled base for entrenching said pipeline and in a second state for remotely disconnecting and separating said cutting assembly from said sled base,whereby said sled base may be left on the bottom of said body of water and said cutting assembly may be raised aboard a floating vessel.

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