Patents Assigned to James J. Oqilvy
  • Game switch matrix
    Patent number: 4274638
    Abstract: A game switch particularly useful as a bingo table used by a bingo caller has greatly increased reliability over conventional microswitch actuated tables. A matrix of conductive flexible strips are used, whereby when a ball is depressed at an intersection of a vertical and horizontal strip, a contact is made. The resistance of the contact is particularly suitable for use with CMOS gate inputs to an electronic matrix position determining circuit.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: June 23, 1981
    Assignee: James J. Oqilvy
    Inventor: Graham A. Jullien