Patents by Inventor Norman L. Trout

Norman L. Trout has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3991887
    Abstract: A road transportable apparatus for moving drill pipe and casing including a rigid support frame assembly with a bifurcated mast assembly pivotally secured thereto, the support frame assembly being rigidly securable to the walk of a conventional drilling rig pipe rack. A hydraulic power cylinder is employed to rotate the mast assembly relative to the support frame assembly. Power winches are included and operate cables extending therefrom over the outer end of the mast assembly where they are securable to the respective opposite ends of the length of drill pipe or casing suspended therebelow. A hydraulic control system is disclosed for controlling the operation of the power cylinder and the power winches. A demountable trailer frame assembly is provided for supporting the support frame assembly and mast assembly when transported over the ground.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: November 16, 1976
    Inventor: Norman L. Trout