Patents by Inventor Manu Jayswal

Manu Jayswal 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).

  • Movable optical target bank for a rolling ball game
    Patent number: 5181722
    Abstract: A pinball game playfield feature includes a circular table which is rotated by a motor and linkage. Mounted on the table is a target housing having optical emitters disposed therein. Optical detectors are located in the table. Each emitter-detector pair forms a light beam which can be interrupted by a pinball to signal the game microprocessor for scoring or other purposes. Rotation of the table permits selectable positioning of the optical target bank.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: January 26, 1993
    Assignee: William Electronics Games, Inc.
    Inventors: John R. Krutsch, Manu Jayswal
  • Ball accelerator for rolling ball games
    Patent number: 5158291
    Abstract: A ball accelerator mechanism employs one or more electromagnetic coils in combination with sensor elements to accelerate a rolling ball made of ferro-magnetic material. As a ball approaches the coil, it operates the sensor applying a DC current pulse to the coil. As the ball enters the coil, it is magnetically accelerated until it clears the sensor at which time the current is turned off. The length of the current pulse is thus a function of ball velocity. Preferably to maximize acceleration, the width of the coil is an integral multiple of the ball diameter.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: October 27, 1992
    Assignee: William ELectronics Games, Inc.
    Inventors: Carl Biagi, Charles R. Bleich, Manu Jayswal, Walter E. Smolucha