Patents by Inventor Herbert Hemminger

Herbert Hemminger 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).

  • Method of coating cathode wires by cataphoretic coating
    Patent number: 4806218
    Abstract: Oxide cathode wires are produced by coating tungsten wires with emissive material by cataphoretic coating. It is important for the coating to have a substantially uniform thickness over the entire surface of the wire. This is achieved in a simple manner by reversing the polarity of the direction of current flow for a short time at the beginning of the coating process, so that the tungsten wire to be coated is connected as an anode. The remainder of the coating process is performed in a known manner with a tungsten wire connected as a cathode.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: February 21, 1989
    Assignee: Nokia Graetz GmbH
    Inventors: Herbert Hemminger, Michael Schlipf
  • Bearing for faceplate panels of color-picture tubes
    Patent number: 4348017
    Abstract: During color-picture tube manufacture, faceplate panels must be set down on conveying devices several times. To prevent damage to the faceplate glass when the panels are being set down, the bearing on the conveying device is a wire fabric.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: September 7, 1982
    Assignee: International Standard Electric Corporation
    Inventors: Wolfgang Schlayer, Herbert Hemminger