Patents by Inventor Johannes Schurr

Johannes Schurr 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: 6241290
    Abstract: A pipe coupling with a cylindrical pipe, whose smooth end section can be inserted into a fitting that has at least one sleeve-like area extending in the longitudinal direction. At least one sealing ring is arranged between the pipe outer wall and the fitting inner wall. The fitting and the pipe are connected securely to each other by an externally applied pressing tool that acts in a plastically deforming manner on at least one radial plane of the sleeve-like area of the fitting as well as the pipe section located under this. A metal sleeve, which can be placed over the pipe ends by force, is arranged between the pipe outer wall and the fitting inner wall. The fixed axial extension of the metal sleeve surrounds the pipe starting from the pipe end face, and the length of the metal sleeve is selected so as to correspond to the required overlap between the pipe and the fitting.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: June 5, 2001
    Assignee: Mannesmann AG
    Inventors: Herbert Foering, Thomas Gigowski, Michael Berane, Karl-Heinz Hartings, Johannes Schurr
  • Patent number: 6131956
    Abstract: A pipe coupling comprises a cylindrical pipe, whose smooth end section can be slipped onto a fitting that has at least one sleeve-like area extending in the longitudinal direction At least one sealing ring is arranged between the pipe and the fitting. The fitting and the pipe are securely connected to each other by means of an externally applied pressing tool, which acts in a plastically deforming manner on at least one radial plane on the pipe as well as the fitting section located below it. Between the fitting outer wall and the pipe inner wall is arranged a metal sleeve (31), which can be slipped onto the fitting by force. The fixed axial extension of the metal sleeve (31) encompasses the length of the fitting (1) The length of the metal sleeve is selected so as to correspond to the required overlap between the pipe (2.1, 2.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: October 17, 2000
    Assignee: Mannesmann AG
    Inventors: Herbert Foering, Thomas Gigowski, Michael Berane, Karl-Heinz Hartings, Johannes Schurr