Patents by Inventor Hans-Jürgen Nowak

Hans-Jürgen Nowak 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).

  • Patent number: 6293133
    Abstract: A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand at the exit side and an intermediate edging stand arranged between the universal stands, and a roughing group arranged in front of the compact rolling group and composed of vertical roll stands and horizontal roll stands and/or universal stands. A rectangular preliminary section or a preliminary section having the approximate final dimensions is preshaped in the roll stands of the roughing rolling group in a number of shape changing passes and/or shape reduction passes, possibly reversing with or without the use of selectable grooves. Subsequently, the section is further shaped in the compact rolling group in several shape changing passes or shape reduction passes in the universal stand on the entry side.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: September 25, 2001
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Ulrich Svejkovsky, Hans-Jürgen Nowak, Georg Engel, David A. Fournie, Lloyd M. Schmelzle
  • Patent number: 6205834
    Abstract: A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand at the exit side and an intermediate edging stand arranged between the universal stands, and a roughing group arranged in front of the compact rolling group and composed of vertical roll stands and horizontal roll stands and/or universal stands. A rectangular preliminary section or a preliminary section having the approximate final dimensions is preshaped in the roll stands of the roughing rolling group in a number of shape changing passes and/or shape reduction passes, possibly reversing with or without the use of selectable grooves. Subsequently, the section is further shaped in the compact rolling group in several shape changing passes or shape reduction passes in the universal stand on the entry side.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: March 27, 2001
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Ulrich Svejkovsky, Hans-Jürgen Nowak, Georg Engel, David A. Fournie, Lloyd M. Schmelzle