Patents by Inventor Jaspal Sethi Attrey

Jaspal Sethi Attrey 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).

  • Display apparatus with DC gear motor drive control
    Patent number: 5767650
    Abstract: A display device for sequentially displaying multiple sets of image pixels formed on a transparent mosaic through an aperture pattern formed in a substantially opaque mask. An DC gear motor and drive assembly is employed to move the mosaic through a predetermined travel path relative to the mask to sequentially register the image sets with the aperture pattern. A control system is employed to temporarily deactivate the gear motor at predetermined precise positions to display the various images through the aperture pattern.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: June 16, 1998
    Assignee: Admotion Corporation
    Inventors: Hans J. Dehli, Jaspal Sethi Attrey, Francis Frederick Dyer