Patents by Inventor Cord Schäffner

Cord Schäffner 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: 8404061
    Abstract: A component of an air-hardenable steel composed of (contents in mass %): C<0.20; Al<0.08; Si<1.00; Mn 1.20 to <2.50; P<0.020; S<0.015; N<0.0150; Cr 0.30 to <1.5; Mo 0.10 to <0.80; Ti 0.010 to <0.050; V 0.03 to <0.20; B 0.0015 to <0.0060, with the remainder being iron including the usual elements present in steel, is produced by heating a hot- or cold-rolled steel sheet or steel tube section to a temperature of ?blank=800 to 1050° C. and then forming the sheet or tube into a component in a forming tool. After removal from the tool, the component is cooled down in air while the component still has a temperature above ?removal=200° C. and below 800° C. The component achieves the required mechanical properties during air-cooling.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: March 26, 2013
    Assignee: Salzgitter Flachstahl GmbH
    Inventors: Michael Braun, Uwe Eggers, Cord Schäffner, Joachim Schöttler, Friedrich Luther, Stefan Mütze, Manuel Otto, Thorsten Reier
  • Publication number: 20120107632
    Abstract: A component of an air-hardenable steel composed of (contents in mass %): C<0.20; Al<0.08; Si<1.00; Mn 1.20 to <2.50; P<0.020; S<0.015; N<0.0150; Cr 0.30 to <1.5; Mo 0.10 to <0.80; Ti 0.010 to <0.050; V 0.03 to <0.20; B 0.0015 to <0.0060, with the remainder being iron including the usual elements present in steel, is produced by heating a hot- or cold-rolled steel sheet or steel tube section to a temperature of ?blank=800 to 1050° C. and then forming the sheet or tube into a component in a forming tool. After removal from the tool, the component is cooled down in air while the component still has a temperature above ?removal=200° C. and below 800° C. The component achieves the required mechanical properties during air-cooling.
    Type: Application
    Filed: June 21, 2010
    Publication date: May 3, 2012
    Applicant: SALZGITTER FLACHSTAHL GMBH
    Inventors: Michael Braun, Uwe Eggers, Cord Schäffner, Joachim Schottler, Friedrich Luther, Stefan Mütze