Patents by Inventor Karl Heinz Putz

Karl Heinz Putz 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).

  • Device and method for moulding a grooved structure into a tubular workpiece
    Patent number: 6295854
    Abstract: According to the invention, a press roller device (1) for molding a grooved structure inside a tubular workpiece (7) has several press rollers (4,5,6), said press rollers rotating around a form tool (2) and being staggered axially in relation to one another. At least two of the press rollers (4,5) are driven in opposite directions to each other. This arrangement prevents the workpiece from twisting to a large extent.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: October 2, 2001
    Assignee: Dynamit Nobel GmbH Explosivstoff-und Systemtechnik
    Inventors: Bernd Stein, Karl-Heinz Putz, Heinz Steinhauer, Wilhelm Zimmermann
  • Flow-turning device and method for producing internally geared wheels using two sets of internal toothing
    Patent number: 6253589
    Abstract: The invention relates to a flowturning device (1; 101) for producing an internal geared wheel (17) with inner toothing, one set of which is slanted. The workpiece (9) is held by a retaining member (16; 116) during shaping of the first inner toothing. The workpiece (9) is held by the first toothing on the first shaping toot (2; 102) during shaping of the second inner toothing. Once the internal geared wheel (17) has been finished, the rotational coupling between both shaping tools (2, 4; 102, 104) is detached. The internal geared wheel (17) is detached from the slanted toothing(s) by means of a stripping member (18).
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 3, 2001
    Assignee: Dynamit Nobel GmbH Explosivstoff- und Systemtechnik
    Inventors: Karl Heinz Putz, Bernd Stein, Heinz Steinhauer, Wilhelm Zimmermann