Patents Assigned to Veb Waschgeratewerk Schwarzenberg
  • Method of producing fluoride-sensitive diaphragms
    Patent number: 4699806
    Abstract: A method of manufacturing diaphragms which are sensitive to fluoride ions, by depositing a poly-crystalline thin layer of difficulty soluble fluoride of 20 nm to 5,000 nm thick by means of sputtering or vaporization onto a substrate at temperatures of above 280.degree. C.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: October 13, 1987
    Assignee: Veb Waschgeratewerk Schwarzenberg
    Inventors: Martin Fait, Thomas Gunther, Peter Janietz, Werner Moritz, Lothar Muller, Hans Wellner