Patents by Inventor Werner D. Mateika

Werner D. Mateika 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).

  • Cold crucible for melting and crystallizing non-metallic inorganic compounds
    Patent number: 4687646
    Abstract: A cold crucible for melting and crystallizing non-metallic inorganic compounds having a cooled crucible wall in the form of metal pipes through which cooling medium flows which are in mechanical connection with the bottom of the crucible through which cooling medium also flows, and having an induction coil which surrounds the wall of the crucible and via which high frequency energy can be coupled in the contents of the crucible and having a second induction coil which can be controlled independently of the induction coil surrounding the wall of the crucible and which is provided below the bottom of the crucible, and having a crucible bottom consisting of a dielectric material.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: August 18, 1987
    Assignee: U.S. Philips Corporation
    Inventors: Werner D. Mateika, Rolf Laurien, Manfred R. Liehr