Patents by Inventor Marvin Eisenhauer

Marvin Eisenhauer 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: 5839966
    Abstract: Time consuming, unreliable leveling of the playing surface of a billiard table is eliminated in a billiard table including a base frame (10) adapted to be supported above the underlying terrain by legs. The base frame has an upper top plate (12) of generally rectangular configuration and a slate bed made up of at least two slate sheets (24) with planar upper surfaces (26) disposed in a generally side by side abutting relation overlying the top plate (12). A plurality of nuts (52) are secured to the top plate (12) at predetermined locations thereon and a plurality of leveling screws (62) are provided, one for each nut (52). Each leveling screw includes a threaded shank (62) received in the associated nut (52) in a radially outwardly directed flange (64) at one end of the shank at the interface of the top plate (12) and the slate sheets (24) and engaging one of the slate sheets (24).
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 24, 1998
    Assignee: Brunswick Bowling & Billiards
    Inventors: Marvin Eisenhauer, William R. McCormick