Patents Assigned to Bockman Enterprises, Inc.
  • Patent number: 5975804
    Abstract: A tile plow includes a horizontal beam and a shoe extending downwardly from the beam. The beam and shoe are supported on a rear wheel assembly, and a front linkage assembly. The beam and shoe are movable between a raised transport position and a lowered plowing position. The position of the rear wheel assembly and front linkage assembly is controlled by a slave hydraulic system for simultaneously raising and lowering the tile plow. A secondary hydraulic outlet adjusts the rear hydraulic cylinders relative to the front hydraulic cylinders. When the tile plow is laying a tile line, the rear wheels are positioned substantially behind the shoe.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: November 2, 1999
    Assignee: Bockman Enterprises, Inc.
    Inventor: Richard Bockman