Patents by Inventor William A. Kmetz

William A. Kmetz 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).

  • Belt-roller crystal pulling mechanism
    Patent number: 4317799
    Abstract: A belt-roller crystal pulling mechanism is described. The belt-roller comprises a single driven belt having a vertical run, and a set of pivotally mounted follower rollers for urging the growing crystal in contact with the belt. The pivot mount enables bends or buckles in the crystal to go through the belt and rollers without causing wiggle at the growth interface which might otherwise cause the growing crystal to break free from the meniscus.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: March 2, 1982
    Assignee: Mobil Tyco Solar Energy Corporation
    Inventors: John B. Serafino, William A. Kmetz