Patents by Inventor Guenther Rduch

Guenther Rduch 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).

  • Extruder screw, extruder and shaft-hub connection
    Patent number: 8678637
    Abstract: An extruder screw includes a screw shaft with several screw elements which can be or have been detachably slipped onto this shaft, the screw shaft having an external gearing and the screw elements having an internal gearing which engage the external gearing. The profile of the teeth of the external and the internal gearing are asymmetric, whereby in relation to a preferred direction of rotation of the extruder screw, the torque-transferring flanks of the teeth of the external and the internal gearing make a smaller angle with the perpendicular to the axis of rotation than do respective opposing flanks, at the teeth, of the external and internal gearing.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: March 25, 2014
    Assignee: Leistritz Aktiengesellschaft
    Inventors: Peter Dietz, Guenter Schaefer, Ilaka Mupende, Cem Turan, Wolfgang Walter, Guenther Rduch
  • Extruder Screw, Extruder And Shaft-Hub Connection
    Publication number: 20080019212
    Abstract: An extruder screw, consisting of a screw shaft with several screw elements, which can be or have been detachably slipped onto this shaft, the screw shaft having an external gearing and the screw elements having an internal gearing, which engages the external gearing, the profile of the teeth of the external and the internal gearing being asymmetric, whereby in relation to a preferred direction of rotation of the extruder screw, the torque-transferring flanks of the teeth of the external and the internal gearing make a smaller angle with the perpendicular to the axis of rotation than do respective opposing flanks, at the tooth, of the external and internal gearing.
    Type: Application
    Filed: August 19, 2005
    Publication date: January 24, 2008
    Inventors: Peter Dietz, Guenter Schaefer, Ilaka Mupende, Cem Turan, Wolfgang Walter, Guenther Rduch