Patents by Inventor Christian Augustin

Christian Augustin 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: 20240413778
    Abstract: A mains-operable power tool having a mains connection, a rectifier connected downstream of the mains connection, and an electric motor with an upstream motor stage, wherein the rectifier and the motor stage are connected via an intermediate circuit having a smoothing capacitor connected in parallel with the rectifier and a switching branch connected in parallel with the rectifier, wherein the switching branch has an additional capacitor which can be discharged if necessary via a discharge circuit included in the intermediate circuit by a switching element included in the switching branch, wherein the intermediate circuit has a precharge circuit which is or can be used to set an offset voltage of the additional capacitor.
    Type: Application
    Filed: October 26, 2022
    Publication date: December 12, 2024
    Inventors: Walter WISSMACH, Christian AUGUSTIN, Anton KIDESS, Markus SCHERBAUM, Justus FREISCHLE
  • Publication number: 20240213893
    Abstract: An electric drive unit for an electric handheld power tool, having an electric motor with a stator winding and a rotor winding, an actuating circuit for actuating the electric motor and a connection unit for coupling an energy source for driving the electric motor, wherein the stator winding is connected via a first node to a stator-side first half-bridge including a first semiconductor component and a second semiconductor component and is connected via a second node to the rotor winding, wherein the rotor winding is connected to a third node which is connected via a conductive component to the connection unit, and wherein the actuating circuit includes a third semiconductor component which is connected via the second node to the rotor winding and the stator winding and which is connected via a fourth node directly to the connection unit.
    Type: Application
    Filed: May 5, 2022
    Publication date: June 27, 2024
    Inventors: Christian AUGUSTIN, Xiaodong ZHANG, Walter WISSMACH
  • Publication number: 20240213894
    Abstract: Control method for braking an electric motor (7) of an electric handheld power tool (1), the electric motor (7) including a stator winding (12) and a rotor winding (14), wherein the method includes a) switching (S1) the electric motor (7) from motor operation to braking operation, b) reversing the polarity (S2) of an input voltage applied to the rotor winding (14) compared to motor operation, c) limiting (S3) a rotor current (IR(t)) of the rotor winding (14) as a function of a predetermined threshold value (IL), and d) regulating (S4) a stator current (IS(t)) of the stator winding (12) as a function of a current rotation speed (n(t)) of the electric motor (7).
    Type: Application
    Filed: May 5, 2022
    Publication date: June 27, 2024
    Inventors: Christian AUGUSTIN, Xiaodong ZHANG, Walter WISSMACH
  • Publication number: 20210339372
    Abstract: The hand-held power tool (1) includes a housing (8), which has a first housing element (9) and a second housing element (10), wherein the first housing element (9) and the second housing element (10) are decoupled from one another and are movable relative to one another. The hand-held power tool (1) furthermore includes a tool holder (2) and a motor (4) for rotational and/or percussive driving of the tool holder (2). Furthermore, the hand-held power tool (1) has a magnetic field sensor (16) for detecting a spacing (L) between the first housing element (9) and the second housing element (10). Moreover, the hand-held power tool (1) includes a control device (18) for setting a motor speed of the motor (4) in accordance with the detected spacing (L).
    Type: Application
    Filed: September 10, 2019
    Publication date: November 4, 2021
    Inventors: Steffen Geiger, Christian Augustin, Darko Saric, Markus Rank, Stefan SCHMID, Christian IGLHAUT
  • Patent number: 11060334
    Abstract: The invention relates to a vertical sliding element including an element frame and a sash which can be moved in the vertical direction relative to the element frame. In the closed position of the sash, one fitting chamber each is formed in the intermediate spaces which are laterally limited by mutually facing side faces of the sash and the element frame. Each fitting chamber is provided with a guide rail and guide elements guided in the guide rail. The sash is connected to the guide elements via a scissors' arrangement having a plurality of parking scissors. The scissors arrangement is designed for parallel parking of the sash in a partially open position, in which the sash is positioned in front of an opening in the element frame, seen in the horizontal direction, and wherein the guide elements are designed to move the sash parked in parallel in the vertical direction by moving the guide elements in the guide rails.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 13, 2021
    Assignee: METALL BAU GmbH
    Inventors: Christian Augustin, Jurgen Kain, Tanja Süß
  • Publication number: 20190128036
    Abstract: The invention relates to a vertical sliding element including an element frame and a sash which can be moved in the vertical direction relative to the element frame. In the closed position of the sash, one fitting chamber each is formed in the intermediate spaces which are laterally limited by mutually facing side faces of the sash and the element frame. Each fitting chamber is provided with a guide rail and guide elements guided in the guide rail. The sash is connected to the guide elements via a scissors' arrangement having a plurality of parking scissors. The scissors arrangement is designed for parallel parking of the sash in a partially open position, in which the sash is positioned in front of an opening in the element frame, seen in the horizontal direction, and wherein the guide elements are designed to move the sash parked in parallel in the vertical direction by moving the guide elements in the guide rails.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 2, 2019
    Inventors: Christian Augustin, Jurgen Kain, Tanja Süß