Patents by Inventor Frank Dykstra

Frank Dykstra 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).

  • Machine for producing optical illusions
    Patent number: 5738587
    Abstract: A motor is secured in the interior of an enclosed housing. The motor shaft extends outside of the housing. A turntable is connected to the motor shaft on the outside of the housing. The turntable is located in a recess in the housing. An illusionary disk is held on the turntable. A potentiometer controls the speed of the motor and thus the speed of the turntable to produce different optical illusions from the illusionary disk. A light is located in the housing near the turntable. The light flashes through openings in the illusionary disk to produce additional optical illusions as the illusionary disk rotates.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: April 14, 1998
    Inventor: Frank Dykstra