Patents by Inventor Klaus J. Dietz

Klaus J. Dietz 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).

  • Xenon lamp system for materials testing apparatus
    Patent number: 5488267
    Abstract: An illumination system for weathering and fading resistance test instruments is provided with a pulse-driven xenon gas discharge lamp with an elongated discharge bulb that has an electrode spacing in the range from 10 to 50 cm; by adjusting the duty factor of the lamp current by means of an electronic control unit, a predetermined ratio between ultraviolet and infrared radiation is achieved; for the sake of light density, the lamp bulb is bent in a U.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: January 30, 1996
    Assignee: Heraeus Xenotest GmbH
    Inventors: Bernd Rudolph, Klaus J. Dietz, Klaas Oostlander