Patents by Inventor Klaus Frenken

Klaus Frenken 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).

  • Making withdrawal rollers for ingots
    Patent number: 4094707
    Abstract: A roller body is made of relatively low alloyed steel and sinter-coated for protection at a temperature up to 1000.degree. C; the coating is mechanically surface finished and the assembly is normalized and tempered followed by air cooling to enhance toughness and tensile strength of the roller body.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: June 13, 1978
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Hans Schrewe, Klaus Frenken
  • Supplying molten metal to a mold for continuous casting
    Patent number: 3996994
    Abstract: A feeder pipe for a mold for continuous casting of steel has near-rectangular inner and outer contour with oppositely directed discharge ports on the small sides of the rectangle feeding towards the small sides of the rectangle of a mold for casting of ingot with rectangular contour.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: December 14, 1976
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Hans Schrewe, Klaus Frenken