Patents by Inventor Christian Schaaf

Christian Schaaf 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: 20100282002
    Abstract: A measuring device, a method, and a shaft arrangement. The device enables and detects a robust and simultaneously precise measurement of torque, a torque variation and/or an equivalent variable. The device has a signal emitter that can be and/or is connected to the shaft in a rotationally fixed manner, a signal receiver to detect signals from the signal emitter and emit a measuring signal which has a constituent dependent on rotational speed, according to the detection of the signals of the signal emitter. The measuring device also has an evaluation device for determining the torque operating state of the shaft on the basis of, and/or, by evaluation of the measuring signal. The evaluation device carries out and/or completes the determination of the torque operating state by analyzing signal constituents of the measuring signal that have a limiting frequency which is higher than the current rotational frequency of the shaft.
    Type: Application
    Filed: October 16, 2008
    Publication date: November 11, 2010
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Tobias Hagemann, Christian Schaaf