Patents by Inventor Stephan Lothar Kuschel

Stephan Lothar Kuschel 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).

  • Method and apparatus for the production of double-walled hollow sections by means of internal high-pressure forming
    Patent number: 6662447
    Abstract: The invention relates to a method and apparatus for the production of double-walled hollow sections by means of internal high-pressure forming, a first hollow section being inserted into a second hollow section, after which the double-walled hollow section thus formed is subjected to high internal fluid pressure in such a way in an internal high-pressure forming die that the double-walled hollow section is expanded. During this process, an air gap is formed between the first, inner, hollow section and the second, outer, hollow section.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: December 16, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Stephan Lothar Kuschel, Stefan Schwarz
  • Method and apparatus for the production of double-walled hollow sections by means of internal high-pressure forming
    Publication number: 20010037573
    Abstract: The invention relates to a method and apparatus for the production of double-walled hollow sections by means of internal high-pressure forming, a first hollow section being inserted into a second hollow section, after which the double-walled hollow section thus formed is subjected to high internal fluid pressure in such a way in an internal high-pressure forming die that the double-walled hollow section is expanded. During this process, an air gap is formed between the first, inner, hollow section and the second, outer, hollow section.
    Type: Application
    Filed: March 19, 2001
    Publication date: November 8, 2001
    Inventors: Stephan Lothar Kuschel, Stefan Schwarz