×

Pipeline padding apparatus

  • US 5,120,433 A
  • Filed: 07/10/1991
  • Issued: 06/09/1992
  • Est. Priority Date: 10/11/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. A pipeline padding assembly for movement on a surface in a forward direction along the side of an excavated pipeline trough while separating fine material from excavated spoil piled on the underlying soil surface and placing the fine material in the pipeline trough, said padding assembly comprising:

  • vehicle means adapted for movement on the surface along the pipeline trough;

    means for separating spoil into fine material and rough material, said separating means being connected to said vehicle means to move with said vehicle means;

    means for returning fine material from said separating means into the pipeline trough;

    means for transferring spoil piled along said pipeline trough to said separator means, said transferring means being connected to said vehicle means to move with said vehicle means.a spoil guide positioned in the front of said transferring means and having an open bottom configuration which is open substantially the entire width of said transferring means, said spoil guide being operably connected for movement with said transferring means, and said spoil guide being positioned to extend forward of said transferring means whereby as said spoil guide is moved along the side of the pipeline trough by said vehicle means, the spoil in said open bottomed configuration is guided to said transferring means;

    at least two spaced guide projections being on said spoil guide, said guide projections being positioned on opposite sides of said transferring means and defining the open bottom therebetween, and at least a portion of said guide projections is positioned to extend forward of said transferring means;

    a flat, planar extending ground engaging lower surface on each said guide projection;

    said ground engaging surfaces extending substantially parallel to the surfaces on which said vehicle means moves; and

    spoil contacting inner guide surfaces on each of said guide projections extending above said ground engaging surfaces.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×