Patents by Inventor Louis V. Cook

Louis V. Cook 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).

  • Surface grade crossing structure
    Patent number: 4880158
    Abstract: A surface grade crossing structure comprising a series of flat rubber pads, each pad having a notch in the bottom to allow for easy installation. Adjacent pads are joined to each other by a key and keyway. Clips are placed in the keyway and secured in the railroad tie. The lower surface of the outer edges of each pad has a series of anchor reliefs which accommodate rail anchors at the base of the rail. The pads may be trapezoidal to accommodate both tangent and curved tracks.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: November 14, 1989
    Inventor: Louis V. Cook
  • Toy worm
    Patent number: D253785
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: December 25, 1979
    Inventor: Louis V. Cook