Patents by Inventor Rudolf Bultmann

Rudolf Bultmann 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: 7275405
    Abstract: Rectilinear drawing machine for drawing material, especially bars, pipes or sections, with at least two movable drawing cars which are driven on a path, one run being assigned to each drawing car, and the runs can be fixed in a variable manner.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: October 2, 2007
    Assignee: BL Chemie GmbH & Co., KG
    Inventor: Rudolf Bültmann
  • Publication number: 20050210948
    Abstract: Rectilinear drawing machine for drawing material, especially bars, pipes or sections, with at least two movable drawing cars which are driven on a path, one run being assigned to each drawing car, and the runs can be fixed in a variable manner.
    Type: Application
    Filed: January 23, 2003
    Publication date: September 29, 2005
    Inventor: Rudolf Bultmann
  • Publication number: 20040250597
    Abstract: The invention relates to a method and device used to produce hollow sections with very high degrees of reduction at very high manufacturing speeds, while at the same time maintaining or improving the quality of the final product. According to the inventive method, it is possible to produce hollow sections having defined cross-sectional forms and dimensions from a starting material in the form of hollow sections having larger diameters. The starting material is shaped to form the desired hollow section by combinations of stretch reductions and drawing through drawing nozzles. The invention also includes a device for carrying out the above-mentioned method.
    Type: Application
    Filed: February 19, 2004
    Publication date: December 16, 2004
    Inventor: Rudolf Bultmann