Patents by Inventor Donald P. Wadina

Donald P. Wadina 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: 3989244
    Abstract: A device to enable a pool player to pre-determine the direction to drive a cue ball in order to contact an object ball and drive the object ball in a pocket of a pool table. A plurality of mirrors are vertically disposed about a flat surface, and a combined cue ball direction and location magnetized simulation device is positionable on and viewable from anywhere on the flat surface. By observing the reflections of the simulation device in the mirrors from the desired pocket or position, a pool player is able to determine the proper direction to strike the cue ball with the cue stick.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: November 2, 1976
    Inventor: Donald P. Wadina