Patents by Inventor Markus Nefzger

Markus Nefzger 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: 20230241756
    Abstract: The invention relates to a hand-carried work apparatus with a housing (2), with a drive motor (3) arranged in the housing (2), wherein the drive motor (3) drives a tool (5) arranged at the front end (30) of the housing (2), wherein a first electrical functional element (13) is arranged in the housing (2), and wherein at least one second electrical functional element (14) is arranged on the outside (12) of the front handle (6), wherein the first electrical functional element (13) is connected to the second functional element (14) via at least one connecting cable (15), and wherein the at least one connecting cable (15) is arranged at least partially in the interior space (10) of the front handle (6) in the area of the side section (33) of the front handle (6).
    Type: Application
    Filed: January 26, 2023
    Publication date: August 3, 2023
    Applicant: Andreas Stihl AG & Co. KG
    Inventor: Markus Nefzger
  • Publication number: 20230128835
    Abstract: A handheld work apparatus has a motor unit including a drive motor for driving a tool and a handle unit including a handle. The motor unit and the handle unit are interconnected via at least one antivibration element. A first antivibration element includes a coil spring. A first holding element is attached in a first end of the coil spring. A second holding element is attached in a second end of the coil spring. The first holding element is firmly connected to the motor unit. The second holding element is firmly connected to the handle unit. The holding elements have end faces located in an interior of the coil spring. The end faces have centering elements that can come into contact with each other and thereby center the holding elements with respect to each other. The end faces form a stop for the movement of the handle.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Inventors: Andreas Schulz, Markus Nefzger
  • Patent number: 11359591
    Abstract: A pulley assembly for a starter device for starting an internal combustion engine of a hand-guided power tool has a pulley with an axis of rotation extending in axial direction. A circumferential side of the pulley is positioned outwardly in radial direction relative to the axis of rotation. A circumferential recess is arranged at the circumferential side and accommodates a starter rope. The pulley is provided with a spring receptacle. A connecting spring is disposed in the spring receptacle and has a first end fixedly connected to the pulley. The spring receptacle and the recess overlap each other, viewed in the axial direction and viewed in the radial direction. A starter device is provided with the pulley assembly and a second end of the connecting spring is fixedly connected to a coupling device of the starter device that couples the pulley to the crankshaft of the combustion engine.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: June 14, 2022
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Nefzger, Carel Karrar
  • Publication number: 20200291912
    Abstract: A pulley assembly for a starter device for starting an internal combustion engine of a hand-guided power tool has a pulley with an axis of rotation extending in axial direction. A circumferential side of the pulley is positioned outwardly in radial direction relative to the axis of rotation. A circumferential recess is arranged at the circumferential side and accommodates a starter rope. The pulley is provided with a spring receptacle. A connecting spring is disposed in the spring receptacle and has a first end fixedly connected to the pulley. The spring receptacle and the recess overlap each other, viewed in the axial direction and viewed in the radial direction. A starter device is provided with the pulley assembly and a second end of the connecting spring is fixedly connected to a coupling device of the starter device that couples the pulley to the crankshaft of the combustion engine.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Inventors: Markus Nefzger, Carel Karrar