Patents by Inventor Craig B. Dingle

Craig B. Dingle 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).

  • Golf putter
    Patent number: 5429356
    Abstract: A golf putter having an adjustable head with at least one post extending therefrom. A plurality of annular washers are interchangeably secured to the post for changing the center of gravity of the putter head. A hub assembly attaches a shaft to the post. A novel hub locking mechanism locks the hub to the posts in which tapered male portion engages a tapered female portion. Also, a pin and groove arrangement prevents the shaft from rotating further than a predetermined angle from the vertical axis.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: July 4, 1995
    Assignee: Bill-Ding Technology, Inc.
    Inventors: Craig B. Dingle, William Harpell
  • Golf putter
    Patent number: 5253869
    Abstract: A golf putter with an adjustable head having screw-threaded projections to which weighted metal disks or washers may be added or subtracted to change the center of gravity of the head and thus, the energy and the angular direction through which the ball travels when impacted by the player. An additional feature comprises provisions for changing the angle of attachment of the shaft to the head.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: October 19, 1993
    Inventors: Craig B. Dingle, William Harpell