Patents by Inventor Donald J. Spry

Donald J. Spry 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).

  • Electrical supply system and method for improving the operating characteristics of gaseous discharge display panels
    Patent number: 3976912
    Abstract: There is disclosed an electrical system and method for supplying operating potentials to gaseous discharge display panels and improving the performance characteristics of such devices. Write and erase operations are accomplished by means of controlling the level of pedestals which has the advantage over previous system in the improvement of sustaining and write/erase characteristics of gaseous discharge display/memory panels of the type disclosed in Baker et al. U.S. Pat. No. 3,499,167, which in turn produces a larger 100 percent operating window.
    Type: Grant
    Filed: February 23, 1972
    Date of Patent: August 24, 1976
    Assignee: Owens-Illinois, Inc.
    Inventors: Joseph L. Miavecz, Donald J. Spry, David S. Wojcik