Patents by Inventor Erwin Strassburger

Erwin Strassburger 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).

  • Patent number: 12569920
    Abstract: A downforce indicator device for indicating a downforce acting on an insertion tool includes a tool receptacle for receiving an insertion tool, a downforce measurement unit for measuring a downforce acting on the tool receptacle, and a downforce indicator unit for indicating the measured downforce. The downforce measuring unit includes a first and a second sleeve, coaxially and displaceably disposed on the first sleeve in the axial direction. The first sleeve is connected to the second sleeve by a limiting element which can be displaced axially on the first sleeve to establish a maximum position of the second sleeve for an axial displacement of the second sleeve directed away from the first sleeve. The first sleeve and the second sleeve form a common receptacle for receiving a spring element acting on the second sleeve in the direction towards the maximum position. The maximum position is associated with a minimum downforce.
    Type: Grant
    Filed: July 22, 2024
    Date of Patent: March 10, 2026
    Assignee: Robert Bosch GmbH
    Inventor: Erwin Strassburger
  • Publication number: 20250033125
    Abstract: A downforce indicator device for indicating a downforce acting on an insertion tool includes a tool receptacle for receiving an insertion tool, a downforce measurement unit for measuring a downforce acting on the tool receptacle, and a downforce indicator unit for indicating the measured downforce. The downforce measuring unit includes a first and a second sleeve, coaxially and displaceably disposed on the first sleeve in the axial direction. The first sleeve is connected to the second sleeve by a limiting element which can be displaced axially on the first sleeve to establish a maximum position of the second sleeve for an axial displacement of the second sleeve directed away from the first sleeve. The first sleeve and the second sleeve form a common receptacle for receiving a spring element acting on the second sleeve in the direction towards the maximum position. The maximum position is associated with a minimum downforce.
    Type: Application
    Filed: July 22, 2024
    Publication date: January 30, 2025
    Inventor: Erwin Strassburger
  • Patent number: 11787030
    Abstract: A power tool includes a housing in which a drive unit is arranged, and a tool holder for the detachable holding of a tool insert. The tool insert is configured to be driven percussively and/or rotationally. A sensor unit is configured to detect at least one movement variable, and electronics are configured to control or regulate the power tool. The electronics have a percussion detection unit configured to determine a percussion mode based on at least one movement variable and/or a rotation detection unit configured to determine a rotation of the housing. The electronics control the drive unit based on the determined percussion mode and/or the determined rotation of the housing. The electronics have at least two parameter sets for the percussion detection unit and/or at least two parameter sets for the rotation detection unit. The electronics are configured to select one of the at least two parameter sets.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: October 17, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Wirnitzer, Joerg Hildebrandt, Andre Kurz, Erwin Strassburger, Andreas Schlegel, Patrick Heinen
  • Publication number: 20220105616
    Abstract: A power tool includes a housing in which a drive unit is arranged, and a tool holder for the detachable holding of a tool insert. The tool insert is configured to be driven percussively and/or rotationally. A sensor unit is configured to detect at least one movement variable, and electronics are configured to control or regulate the power tool. The electronics have a percussion detection unit configured to determine a percussion mode based on at least one movement variable and/or a rotation detection unit configured to determine a rotation of the housing. The electronics control the drive unit based on the determined percussion mode and/or the determined rotation of the housing. The electronics have at least two parameter sets for the percussion detection unit and/or at least two parameter sets for the rotation detection unit. The electronics are configured to select one of the at least two parameter sets.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 7, 2022
    Inventors: Bernd Wirnitzer, Joerg Hildebrandt, Andre Kurz, Erwin Strassburger, Andreas Schlegel, Patrick Heinen