Patents by Inventor Michael N. R. Humphrey

Michael N. R. Humphrey 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: 4449708
    Abstract: A golf practice device comprising a track secured to a fixed mounting surface, such as a wall, post or the like; a carriage guided for movement along the track and a flexible tension member connecting the carriage to the shaft of a golf club. The tension member is adjustable for length. The golf club is guided in a path of movement which lies generally in a plane parallel to the plane of the track. The track is of a smaller dimension and similar in shape to the path of movement.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: May 22, 1984
    Inventor: Michael N. R. Humphrey