Patents by Inventor Helmut Vacek

Helmut Vacek 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).

  • Gas purging plug for electric-arc furnaces and the corresponding electric-arc furnace
    Patent number: 5299785
    Abstract: The present invention pertains to a gas purging plug with integrated electrode for use in electric-arc furnaces.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: April 5, 1994
    Assignees: Radex-Heraklith Industriebeteiligungs Aktiengesellschaft, Ing. Leone Tagliaferri & C. S.p.A.
    Inventors: Georgio Cappelli, Helmut Vacek, Ing. Pericle Bosi
  • Two-piece terminal brick
    Patent number: 5060915
    Abstract: The invention concerns a fireproof ceramic terminal brick for a tapping system in particular in steel converters or electric furnaces composed of several fireproof ceramic founder's bricks arranged in a row, together enclosing a passage opening for the steel smelt, thereby characterized in that the terminal brick is formed in two pieces vertical to the direction of flow of the steel smelt and the lower section in the direction of flow of the smelt is formed as a cylindrical body that can be pressed firmly against the upper section of the terminal brick, arranged above it, in such a way as to seal but remaining detachable from it.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: October 29, 1991
    Assignee: Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
    Inventors: Sabine Altpeter, Helmut Vacek, Bernd Grabner