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Mechanized unit for digging a trench and laying elongate objects

  • US 4,812,078 A
  • Filed: 06/19/1987
  • Issued: 03/14/1989
  • Est. Priority Date: 06/26/1986
  • Status: Expired due to Fees
First Claim
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1. A mechanized unit for digging a trench in the ground and laying elongate continuous object, like tubes, cables or similar in said trench, comprising:

  • a motor driven vehicle;

    a digging wheel connected to said vehicle;

    a reserve containing said elongate continuous object and connected to said vehicle;

    a receptacle containing a fine powdery material, which is sand, and mounted on a trailer hitched to said motor-driven vehicle, said trailer being disposed substantially parallel to said digging wheel; and

    means for feeding said fine powdery material from said receptacle on the trailer to said guide device so that, during formation of said trench by the digging wheel, said powdery material flows below said elongate continuous object in the bottom of the trench, and for then covering said elongate continuous object, this latter thus being buried in said fine powdery material deposited in said trench.

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