Patents by Inventor Donald C. Medved

Donald C. Medved 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).

  • Patent number: 4040777
    Abstract: Flash lamp array sequencing circuits in which the lamps are provided with heat-sensitive switch material on the outside surface of the bulbs and extending between lead-in wires. The switch material initially has a relatively high impedance, and changes to a relatively low impedance between the lead-in wires when heated by the lamp when it is flashed. A coating of lacquer or plastic is provided over the bulb and switch material.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: August 9, 1977
    Assignee: General Electric Company
    Inventors: Edward J. Collins, Donald C. Medved