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Walk behind trencher for limited depth installations

  • US 20070089329A1
  • Filed: 10/22/2005
  • Published: 04/26/2007
  • Est. Priority Date: 10/22/2005
  • Status: Abandoned Application
First Claim
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1. An apparatus for installing small wires and cables underground that comprises:

  • A. handlebars placed in a manner that allows the operator to safely push and guide said apparatus;

    B. a driving mechanism;

    C. a hydraulic pump installed so that said driving mechanism'"'"'s motorization causes the oil of the pump to flow;

    D. a trenching mechanism;

    E. a hydraulic motor installed in said trenching mechanism in such a manner that its speed is controlled separately from the speed of said driving mechanism;

    F. a trenching blade that is made from the abrasion-resistant group of metals or some similar material;

    that has carbide, or some other type of teeth that are machined, cast, molded, welded or otherwise incorporated into said trenching blade; and

    that is connected to said trenching mechanism;

    G a wire feeder that is connected to said trenching mechanism in a manner that allows the wire to be fed into the trench after said trenching blade has cut the trench;

    H. one or more spool-holders that are connected to said apparatus in a manner that allows the wire, cable, or similar material to flow from its source to said wire feeder and from said wire feeder into the trench;

    I. a pivoting device that connects said driving mechanism to said trenching mechanism and allows for the oil from the pump in said driving mechanism to flow to the hydraulic motor in said trenching mechanism;

    J. a gauge wheel connected to said apparatus in such a manner that allows for said gauge wheel to adjust the height of said trenching blade and said wire feeder whereby the wire, cable, or similar material can be placed at the bottom of the trench, and easily inserted and/or removed without cutting or damaging the said wire, cable, or similar material; and

    whereby said gauge wheel can be dropped into a caster position allowing said trenching blade to be free of the ground while walking to or from the work site;

    Whereby said apparatus in claim 1 can vary its driving speed and trenching speed independently, vary its trenching depth and width, and easily negotiate turns.

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