Patents by Inventor Walter Pischel

Walter Pischel 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).

  • Publication number: 20070026954
    Abstract: The invention concerns a driveshaft (1) with a drive joint (9) for an vehicle, in which the drive joint (9) features a joint inner portion and joint outer portion (12), which are axially placed into one another and contain rolling elements associated with lead-in tracks (16, 17) between them. In order to make sure that the driveshaft (1) does not break and fall apart in case of impermissibly high torque moments, the joint outer portion (12) is constructed in such a manner that it breaks as a predetermined breaking point of the driveshaft (1) when a predefined torque moment barrier is exceeded.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Inventors: Gerald Langer, Armin Ihle, Walter Pischel, Stephan Lutzenberger, Manfred Hirschvogel
  • Patent number: 6516647
    Abstract: The invention relates to a method of manufacturing the outer part of a constant velocity joint, the outer part having in the finished condition a hollow chamber with a cylinder-shaped inner wall, in which there are provided ball raceways (1c) which run obliquely of the cylinder axis and are inclined with respect to one another. First, a wobble press die (4) is axially introduced into a goblet-shaped preliminary workpiece (1a) for the outer part having a conically developing inner and outer wall and pre-formed ball raceways (1c) in the inner wall. The preliminary workpiece (1a) is pressed (drawing process) by means of the wobble press die (4), sitting on the floor of the hollow chamber, through an opening in an outer die (2), so that a drawing process is carried out in which the preliminary workpiece (1a) is so cold formed that the inner wall of the hollow chamber is given a cylindrical shape.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: February 11, 2003
    Assignee: Hirschvogel Umformtechnik
    Inventors: Manfred Hirschvogel, Karl Schuster, Peter Kettner, Walter Pischel, Michael Dahme, Hubert Nägele