Patents by Inventor Mark A. Weyna

Mark A. Weyna 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: 6129353
    Abstract: A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. The pinball machine includes a cabinet, a playfield, a playfield panel, an electronics system, and a video display. The playfield is mounted in the cabinet with the playfield panel mounted to the cabinet and overlaying at least a portion of the playfield. The video display is mounted generally above the cabinet and is disposed to project video images onto the playfield panel for viewing by the player. When the pinball machine is retrofitted, diagnostics can be performed while the playfield panel is still removed from the pinball machine by displaying diagnostic video images/information onto a partially reflective member positioned below the video display.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: October 10, 2000
    Assignee: Williams Electronics Games, Inc.
    Inventors: Lawrence E. DeMar, Louis N. Koziarz, Peter J. Piotrowski, Mark A. Weyna
  • Patent number: 5741010
    Abstract: An apparatus provides interlevel play for a pinball game having an inclined playfield. The apparatus includes an elevated surface mounted above the playfield for supporting a rolling ball thereon. The elevated surface has an aperture therein for receiving the rolling ball therethrough, and a trap door is movable between a closed position and an open position. In the closed position, the trap door extends substantially the length of the aperture to support the rolling ball thereon. In the open position, the rolling ball is allowed to be ejected through the aperture and onto the elevated surface. An ejecting mechanism is also provided for ejecting the rolling ball from underneath the elevated surface, through the aperture, and onto the elevated surface.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: April 21, 1998
    Inventor: Mark Weyna