Ground cover mat manufactured from recycled plastic

  • US 5,807,021 A
  • Filed: 11/29/1995
  • Issued: 09/15/1998
  • Est. Priority Date: 11/29/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A ground cover mat to provide traction to vehicles and to protect terrain from damage, the ground cover mat comprising:

  • a flexible sheet formed from molded plastic and having an upper surface and a lower surface on opposite sides thereof;

    a first plurality of elongated lugs and a second plurality of elongated lugs formed substantially over the entire upper surface of the flexible sheet; and

    a third plurality of elongated lugs and a forth plurality of elongated lugs formed substantially over the entire lower surface of the flexible sheet, wherein;

    each lug has a similar size and has a height that varies between opposite ends thereof in a convex arcuate shape relative to its respective surface of the flexible sheet;

    each of the plurality of lugs is disposed in a pattern of parallel columns;

    the lugs in each column have their elongated axes aligned;

    adjacent lugs in each column are separated by a space;

    the columns of the first plurality of lugs and the columns of the third plurality of lugs are positioned in opposition on opposite sides of the flexible sheet;

    the lugs of the third plurality of lugs are positioned in opposition with the spaces between adjacent lugs in each column of the first plurality of lugs and vice versa;

    the columns of the second plurality of lugs and the columns of the fourth plurality of lugs are positioned in opposition on opposite sides of the flexible sheet and are positioned perpendicular to the columns of the first plurality of lugs and the columns of the second plurality of lugs;

    the lugs of the fourth plurality of lugs are positioned in opposition with the spaces between adjacent lugs in each column of the second plurality of lugs and vice versa;

    the lugs of the first plurality of lugs have central parts positioned in opposition with central parts of the lugs of the fourth plurality of lugs; and

    the lugs of the second plurality of lugs have central parts positioned in opposition with central parts of the lugs of the third plurality of lugs.

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