Patents by Inventor Walter Schmelzer

Walter Schmelzer 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).

  • Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement
    Patent number: 5465942
    Abstract: To increase the service life of a tuyere arrangement for the introduction of agents into a molten bath, comprising an apertured block (3) refractory material which can be fitted into the wall (1) of a vessel (12) and which includes a cylindrical body (4) with an inserted tuyere tube (6,7), the cylindrical (4) is axially displaceably fitted in the apertured block (3) the tuyere tip which is consumed is replaced by a follow-up movement of the cylindrical body (4).
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: November 14, 1995
    Assignee: Kortec AG
    Inventors: William Wells, Georg Raidl, Walter Schmelzer