Patents by Inventor Christian WOETZL

Christian WOETZL 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).

  • Control method for an impact wrench
    Patent number: 11465263
    Abstract: A control method includes two operating modes carried out in response to a position of a selector switch. The first operating mode provides: carrying out first impacts of the hammer onto the anvil; detecting the event of an impact of the hammer onto the anvil with an impact sensor; detecting an angular position of the anvil with an angle sensor; estimating an individual impact angle of the anvil due to the last detected impact, based on the angular position of the anvil before the last detected impact and the angular position of the anvil after the last detected impact, and comparing the individual impact angle with an individual impact setpoint angle. The first operating mode is ended when the individual impact angle drops below an individual impact setpoint angle.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 11, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventors: Christian Woetzl, Dario Bralla, Matthaeus Alberding
  • CONTROL METHOD FOR AN IMPACT WRENCH
    Publication number: 20190118353
    Abstract: A control method includes two operating modes carried out in response to a position of a selector switch. The first operating mode provides: carrying out first impacts of the hammer onto the anvil; detecting the event of an impact of the hammer onto the anvil with an impact sensor; detecting an angular position of the anvil with an angle sensor; estimating an individual impact angle of the anvil due to the last detected impact, based on the angular position of the anvil before the last detected impact and the angular position of the anvil after the last detected impact, and comparing the individual impact angle with an individual impact setpoint angle. The first operating mode is ended when the individual impact angle drops below an individual impact setpoint angle.
    Type: Application
    Filed: March 29, 2017
    Publication date: April 25, 2019
    Inventors: Christian WOETZL, Dario BRALLA, Matthaeus ALBERDING