Patents by Inventor Ulrich MANDEL

Ulrich MANDEL 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: 12220801
    Abstract: Hammer drill and/or chipping hammer having a drive motor, an impact mechanism and a tool fitting for fitting a tool, wherein the impact mechanism has an anvil that is axially displaceable in an anvil guide and acts on the tool, wherein the impact mechanism has an idle-strike damper element and a rebound-strike damper element, which are formed in one piece with one another and as such form a combined damper element, wherein the anvil guide is arranged outside, preferably only outside the combined damper element.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 11, 2025
    Assignee: Hilti Aktiengesellschaft
    Inventors: Uto Plank, Ulrich Mandel, Josef Fünfer
  • Publication number: 20240424651
    Abstract: Hammer drill and/or chipping hammer (100) having a drive motor (70), an impact mechanism (10) and a tool fitting (50) for fitting a tool (110), wherein the impact mechanism (10) has an anvil (30) that is axially displaceable in an anvil guide (20) and acts on the tool (110), wherein the impact mechanism (10) has an idle-strike damper element (11), which acts between the anvil (30) and the tool fitting (50), and wherein the impact mechanism has a guide housing (80), which engages at least partially around the anvil (30) and/or the tool fitting (50), wherein an additional idle-strike damper element (31) is provided, which acts between the tool fitting (50) and the guide housing (80).
    Type: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: Josef FÜNFER, Ulrich MANDEL
  • Patent number: 12115637
    Abstract: Hammer drill and/or chipping hammer (100) having a drive motor (70), an impact mechanism (10) and a tool fitting (50) for fitting a tool (110), wherein the impact mechanism (10) has an anvil (30) that is axially displaceable in an anvil guide (20) and acts on the tool (110), wherein the impact mechanism (10) has an idle-strike damper element (11), which acts between the anvil (30) and the tool fitting (50), and wherein the impact mechanism has a guide housing (80), which engages at least partially around the anvil (30) and/or the tool fitting (50), wherein an additional idle-strike damper element (31) is provided, which acts between the tool fitting (50) and the guide housing (80).
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 15, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Josef Fünfer, Ulrich Mandel
  • Publication number: 20240123589
    Abstract: Hammer drill and/or chipping hammer having a drive motor, an impact mechanism and a tool fitting for fitting a tool, wherein the impact mechanism has an anvil that is axially displaceable in an anvil guide and acts on the tool, wherein the impact mechanism has an idle-strike damper element and a rebound-strike damper element, which are formed in one piece with one another and as such form a combined damper element, wherein the anvil guide is arranged outside, preferably only outside the combined damper element.
    Type: Application
    Filed: November 12, 2019
    Publication date: April 18, 2024
    Inventors: Uto PLANK, Ulrich MANDEL, Josef FÜNFER
  • Publication number: 20220388137
    Abstract: Hammer drill and/or chipping hammer (100) having a drive motor (70), an impact mechanism (10) and a tool fitting (50) for fitting a tool (110), wherein the impact mechanism (10) has an anvil (30) that is axially displaceable in an anvil guide (20) and acts on the tool (110), wherein the impact mechanism (10) is equipped with an idle-strike damper element (11) and a rebound-strike damper element (13), wherein the idle-strike damper element (11) and/or the rebound-strike damper element (13) is/are integrated on the anvil (30).
    Type: Application
    Filed: November 6, 2020
    Publication date: December 8, 2022
    Inventors: Ulrich MANDEL, Josef FÜNFER
  • Publication number: 20220362916
    Abstract: Hammer drill and/or chipping hammer (100) having a drive motor (70), an impact mechanism (10) and a tool fitting (50) for fitting a tool (110), wherein the impact mechanism (10) has an anvil (30) that is axially displaceable in an anvil guide (20) and acts on the tool (110), wherein the impact mechanism (10) has an idle-strike damper element (11), which acts between the anvil (30) and the tool fitting (50), and wherein the impact mechanism has a guide housing (80), which engages at least partially around the anvil (30) and/or the tool fitting (50), wherein an additional idle-strike damper element (31) is provided, which acts between the tool fitting (50) and the guide housing (80).
    Type: Application
    Filed: November 6, 2020
    Publication date: November 17, 2022
    Inventors: Josef FÜNFER, Ulrich MANDEL
  • Publication number: 20220355389
    Abstract: Tool fitting device for a power tool, in particular a chipping hammer, including—a holding device for receiving and holding a tool shank, a retention element extending at least around a section or sections of the holding device, and a dust protection device for preventing the penetration of dust into the tool fitting device. The dust protection device includes at least one first dust stripping element, at least one fixing bead, and at least one sealing lip element, wherein the sealing lip element is positioned in front of the retention element in the axial direction. Dust protection device for use in a tool fitting device.
    Type: Application
    Filed: June 30, 2020
    Publication date: November 10, 2022
    Inventors: Udo HAUPTMANN, Ulrich MANDEL