Patents by Inventor Jack T. Hallberg

Jack T. Hallberg 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: 4456263
    Abstract: A multi-sided horizontal platform for the support of object or target balls is supported above the horizontal base of a main pyramid support frame. A single swinging missile ball is connected by a tether to the apex of the main pyramid support frame and during use has its swing interrupted by the apex of an internal smaller pyramid frame whose base and apex are symmetrically arranged relative to the base and apex of the main pyramid frame. Plural players in succession at the sides of the game apparatus elevate and aim the missile ball at opposing players' target balls held on that side of the ball support platform in front of each player. The target balls of each player have a distinct color different from those of other players and the target balls are arranged alternately on the sides of the support platform. Each platform side also supports one black ball which, when knocked off by a player, results in a penalty.
    Type: Grant
    Filed: December 7, 1982
    Date of Patent: June 26, 1984
    Inventor: Jack T. Hallberg