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Apparatus for laying elongated flexible tubing

  • US 4,028,902 A
  • Filed: 10/01/1976
  • Issued: 06/14/1977
  • Est. Priority Date: 10/01/1976
  • Status: Expired due to Term
First Claim
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1. Apparatus for laying elongated flexible tubing in a trench adapted to be secured to a trenching boom carried by a vehicle, said apparatus comprising:

  • an upwardly open hopper having a forward end adapted to be secured to a trenching boom in trailing relation thereto, and a trailing end;

    a first partition adjacent said forward end defining a flexible tubing tunnel, said tunnel opening to the top and bottom of said hopper so that flexible tubing may enter the top of said hopper and exit the bottom thereof behind said trenching boom;

    a second partition in said hopper rearwardly of said first partition defining first and second fill material receiving compartments, said compartments opening upwardly to receive fill material such as sand and downwardly to release fill material rearwardly of said tunnel, said second compartment opening downwardly at a level above the downward opening of said first compartment;

    a first compactor carried by said hopper rearwardly of said first compartment and forwardly of said second compartment for compacting fill material released from said first compartment;

    a second compactor carried by said hopper rearwardly of said second compartment for compacting fill material released from said second compartment; and

    a groover carried by said hopper at the bottom thereof forwardly of said tunnel for cutting a groove in the bottom of the trench dug by the trenching boom to which said apparatus may be attached, said groover being configured to cut a groove having a cross section substantially equal to that of the lower third of the flexible tubing being laid.

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