Patents by Inventor Fritz Hodl

Fritz Hodl 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).

  • Refractory gas-permeable structural unit
    Patent number: 4395026
    Abstract: A refractory gas-permeable structural unit for blowing a gas into a metal treatment vessel and through its casing has at least two elements composed of refractory material and having abutting longitudinal faces provided with at least one metal layer, a metal housing surrounding the elements to connect them with one another and tightly abutting against other longitudinal faces of the elements, and a gas distribution chamber formed at an end face of the elements and communicating with a gas supply conduit.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: July 26, 1983
    Assignee: Arbed S.A.
    Inventors: Fritz Hodl, Friedrich Kassegger