Patents by Inventor Stephan Bühren

Stephan Bühren 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: 7605509
    Abstract: A rotor shaft of a spinning rotor has an annular magnet bearing component which is secured from the centrifugal force effective during the spinning process by means of a ring liner, for radially and axially supporting the rotor shaft, whereby the rotatable magnetic bearing component interacts with a stationary magnetic bearing component. The magnetic bearing component linked with the rotor shaft (4) of the spinning rotor (3) is configured as a slotted permanent magnet ring (32,42), thereby ensuring the deformability required for fitting a ring liner (6,7).
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: October 20, 2009
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventor: Stephan Bühren
  • Patent number: 7377095
    Abstract: The invention relates to an open end spinning device comprising a single-motor driven spinning rotor whose cup is rotationally actuated in the rotor housing which is negatively pressurized and closed by a cover element during a spinning process. According to said invention, the rotor house (2) is embodied in the form of a central element which is fixable to the frame of a textile machine and connects the control (3) of the spinning rotor (21) to the carrier (4) for the cover element (6) provided with a fibre band releasing device (23).
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: May 27, 2008
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Heinz-Georg Wassenhoven, Georg Schmidt, Norbert Coenen, Friedhelm Mistler, Stephan Bühren
  • Patent number: 6863466
    Abstract: An open-end spinning rotor (3) is supported by its rotor shaft (4) in a spinning-rotor bearing (5) with the rotor shaft (4) detachably connected via a coupling device (29) to a rotor cup (26) such that the rotor shaft (4) remains supported in the spinning-rotor bearing (5) when the rotor cup (26) is removed. The coupling device (29) comprises a magnetic device (30) for fixing rotor shaft (4) and rotor cup (26) axially relative to one another and a mechanical rotational safety mechanism (31) for fixing rotor shaft (4) and rotor cup (26) radially relative to one another.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 8, 2005
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Stephan Bühren