Patents by Inventor Peter Wahls

Peter Wahls 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: 5402993
    Abstract: The invention is directed to an immersion casting pipe for feeding molten steel from a casting vessel into a mold having wide side walls and narrow side walls for the production of flat products. The immersion casting pipe has a pipe piece which adjoins the casting vessel and expands in cross section in the direction of the narrow side walls of the mold. The pipe piece is provided with a central base member at the lower end which allows for outlet openings for the melt. For the purpose of developing an immersion outlet which allows higher slab withdrawal speed of up to 6 m/min with slabs measuring 50 to 100 mm in thickness and 600 mm to 2000 mm in width, the inner wall of the portion of the immersion casting pipe which widens in cross section forms flow channels in conjunction with the opposite wall parts of the base member. The axes of the flow channels enclose an angle .alpha. between 10.degree. and 22.degree.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: April 4, 1995
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Georg Hofmann, Lothar Parschat, Fritz P. Pleschiutschnigg, Peter Wahls, Hans Butz, Ulrich Siegers
  • Patent number: 4019560
    Abstract: Continuously cast ingots are spray-cooled by a fanned-out flow of water which has been accellerated by pressurized air with an original nozzle direction parallel to the surface of the ingot and transversely to the direction of ingot withdrawal. The arrangement avoids cooling impediment on account of the Leiden frost phenomenon.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: April 26, 1977
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Hans Gruner, Gerd Diederich, Hans Butz, Peter Wahls, Engelbert Weins