Patents by Inventor Ralf Meixner

Ralf Meixner 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: 11699870
    Abstract: A power tool, which includes a receiving device having at least one receiving element and a power supply unit connectable to the power tool, for example a rechargeable battery, which includes a connecting device, the connecting device having at least one contact element, the receiving device being designed to receive and hold the connecting device, so that the at least one receiving element and the at least one contact element are connectable to each other for establishing an electrical connection. A damping element is provided on at least one contact element, whereby the at least one contact element is movable in a first direction and a second direction as well as relative to the particular receiving element, so that it is possible to counteract a relative movement between the contact element and the particular receiving element when the contact element and the receiving element are connected to each other.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: July 11, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Patent number: 11688912
    Abstract: A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: June 27, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Markus Holubarsch, Stefan Schmid, Tobias Koeniger, Michael Göttlinger, Katharina Marsiglia, Julian Harbaum, Bernd Ziegler, Dieter Profunser, Ralf Meixner, David Klingen
  • Patent number: 11652257
    Abstract: A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: May 16, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Markus Holubarsch, Stefan Schmid, Tobias Koeniger, Michael Göttlinger, Katharina Marsiglia, Julian Harbaum, Bernd Ziegler, Dieter Profunser, Ralf Meixner, David Klingen
  • Publication number: 20220223964
    Abstract: A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 14, 2022
    Inventors: Markus HOLUBARSCH, Stefan SCHMID, Tobias KOENIGER, Michael GÖTTLINGER, Katharina MARSIGLIA, Julian HARBAUM, Bernd ZIEGLER, Dieter PROFUNSER, Ralf MEIXNER, David KLINGEN
  • Publication number: 20220181813
    Abstract: A power tool, which includes a receiving device having at least one receiving element and a power supply unit connectable to the power tool, for example a rechargeable battery, which includes a connecting device, the connecting device having at least one contact element, the receiving device being designed to receive and hold the connecting device, so that the at least one receiving element and the at least one contact element are connectable to each other for establishing an electrical connection. A damping element is provided on at least one contact element, whereby the at least one contact element is movable in a first direction and a second direction as well as relative to the particular receiving element, so that it is possible to counteract a relative movement between the contact element and the particular receiving element when the contact element and the receiving element are connected to each other.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Patent number: 11329345
    Abstract: A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 10, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventors: Markus Holubarsch, Stefan Schmid, Tobias Koeniger, Michael Göttlinger, Katharina Marsiglia, Julian Harbaum, Bernd Ziegler, Dieter Profunser, Ralf Meixner, David Klingen
  • Patent number: 11289842
    Abstract: A power tool, which includes a receiving device having at least one receiving element and a power supply unit connectable to the power tool, for example a rechargeable battery, which includes a connecting device, the connecting device having at least one contact element, the receiving device being designed to receive and hold the connecting device, so that the at least one receiving element and the at least one contact element are connectable to each other for establishing an electrical connection. A damping element is provided on at least one contact element, whereby the at least one contact element is movable in a first direction and a second direction as well as relative to the particular receiving element, so that it is possible to counteract a relative movement between the contact element and the particular receiving element when the contact element and the receiving element are connected to each other.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 29, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Publication number: 20210384579
    Abstract: A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 9, 2021
    Inventors: Markus HOLUBARSCH, Stefan SCHMID, Tobias KOENIGER, Michael GÖTTLINGER, Katharina MARSIGLIA, Julian HARBAUM, Bernd ZIEGLER, Dieter PROFUNSER, Ralf MEIXNER, David KLINGEN
  • Patent number: 11173551
    Abstract: A power tool includes a receiving device having at least one first and second power consumption element. A power supply unit connectable to the power tool includes a connecting device having at least one first and second power output element, the receiving device being designed to receive and hold the connecting device, so that the power consumption elements and the power output elements are connectable. Both the first and second power consumption elements have a positive pole as well as a negative pole, and both the first and second power output elements have a positive pole as well as a negative pole. The positive pole of the first power consumption element and the positive pole of the second power consumption element as well as the negative pole of the first power consumption element and the negative pole of the second power consumption element are positioned at a distance from each other in at least one first and second direction.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: November 16, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Patent number: 11005206
    Abstract: A plug-in coupling (100) for making electrical contact with an electric drive (90) which is included in a hand-held power tool (200) and has a battery unit (20) which is to be accommodated by the hand-held power tool (200). The plug-in coupling (100) has at least one electrical contact plate (1) which is to be connected to the hand-held power tool (200), and at least one electrical contact spring pair (3) which corresponds to the contact plate (1), wherein the contact spring pair (3) is to be arranged on the battery unit (20) and is to be slid onto the contact plate (1) in the sliding-on direction (AR) and is to be withdrawn therefrom in the withdrawal direction (AB), wherein in the state in which contact is made (ZK) the contact plate (1) and the contact spring pair (3) form a frictionally locking latching-connection pairing.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 11, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Johannes Stempfhuber, Markus Holubarsch
  • Publication number: 20200373698
    Abstract: A plug-in coupling (100) for making electrical contact with an electric drive (90) which is included in a hand-held power tool (200) and has a battery unit (20) which is to be accommodated by the hand-held power tool (200). The plug-in coupling (100) has at least one electrical contact plate (1) which is to be connected to the hand-held power tool (200), and at least one electrical contact spring pair (3) which corresponds to the contact plate (1), wherein the contact spring pair (3) is to be arranged on the battery unit (20) and is to be slid onto the contact plate (1) in the sliding-on direction (AR) and is to be withdrawn therefrom in the withdrawal direction (AB), wherein in the state in which contact is made (ZK) the contact plate (1) and the contact spring pair (3) form a frictionally locking latching-connection pairing.
    Type: Application
    Filed: August 3, 2018
    Publication date: November 26, 2020
    Inventors: Ralf MEIXNER, Johannes STEMPFHUBER, Markus HOLUBARSCH
  • Publication number: 20200366021
    Abstract: A plug-in coupling for making electrical contact between an electric motor included in a hand-held power tool and a battery unit, which is to be accommodated by the hand-held power tool, wherein the plug-in coupling has at least one electrical contact plate to be connected to the hand-held power tool and a corresponding contact plug with two opposing resilient contact limbs, wherein the contact plug is to be arranged on the battery unit and is to be slid onto the contact plate in the sliding-on direction and withdrawn from same in the withdrawal direction, and wherein each of the resilient contact limbs has a contact region which electrically contacts a respective side of the contact plate in the contacted state, wherein the contact regions are spaced apart from one another, in the uncontacted state, relative to a deflection direction of the resilient contact limbs.
    Type: Application
    Filed: August 8, 2018
    Publication date: November 19, 2020
    Inventors: Ralf MEIXNER, Markus HOLUBARSCH
  • Publication number: 20200215680
    Abstract: A battery unit (100), which is designed for being received in a receiving recess (90) of an electrical hand-held power tool (200). The battery unit (100) includes a locking mechanism (10), which in a locking state (VZ) prevents the battery unit (100) from being pulled out of the receiving recess (90), wherein the locking mechanism (10) has an unlocking button (11) with a pressing area (13), by pressing and deflecting which the locking mechanism (10) can be brought into a release state (FZ), in which the battery unit (100) can be pulled out of the receiving recess (90) in a pulling-out direction (AR), wherein the pressing area (13) defines in the release state (FZ) and in relation to the pulling-out direction (AR) a first oblique plane (E1) in such a way that a vector component (FA) of an actuating force (FB) acting on the pressing area (13) is oriented in the pulling-out direction (AR).
    Type: Application
    Filed: July 30, 2018
    Publication date: July 9, 2020
    Inventors: Ralf MEIXNER, Markus HOLUBARSCH, Tobias KOENIGER
  • Patent number: 10675745
    Abstract: A hand-held power tool, in particular a hammer drill or a combination hammer, is disclosed. The hand-held power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool has an electric drive motor with a cooling fan. The tool housing has a first vent portion which is located in the receiving recess and through which a volume flow generated by the cooling fan can be guided.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: June 9, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Manfred Jakob, Thomas Thanner
  • Publication number: 20200153142
    Abstract: A power tool, which includes a receiving device having at least one receiving element and a power supply unit connectable to the power tool, for example a rechargeable battery, which includes a connecting device, the connecting device having at least one contact element, the receiving device being designed to receive and hold the connecting device, so that the at least one receiving element and the at least one contact element are connectable to each other for establishing an electrical connection. A damping element is provided on at least one contact element, whereby the at least one contact element is movable in a first direction and a second direction as well as relative to the particular receiving element, so that it is possible to counteract a relative movement between the contact element and the particular receiving element when the contact element and the receiving element are connected to each other.
    Type: Application
    Filed: April 16, 2018
    Publication date: May 14, 2020
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Publication number: 20200094329
    Abstract: A power tool includes a receiving device having at least one first and second power consumption element. A power supply unit connectable to the power tool includes a connecting device having at least one first and second power output element, the receiving device being designed to receive and hold the connecting device, so that the power consumption elements and the power output elements are connectable. Both the first and second power consumption elements have a positive pole as well as a negative pole, and both the first and second power output elements have a positive pole as well as a negative pole. The positive pole of the first power consumption element and the positive pole of the second power consumption element as well as the negative pole of the first power consumption element and the negative pole of the second power consumption element are positioned at a distance from each other in at least one first and second direction.
    Type: Application
    Filed: April 19, 2018
    Publication date: March 26, 2020
    Inventors: Ralf Meixner, Johannes Stempfhuber
  • Patent number: 10569407
    Abstract: A hand-held power tool, in particular a hammer drill or combination hammer, is disclosed. The power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool further includes an electric drive motor having a cooling fan and a first vent portion which is located on the tool housing outside the receiving recess and through which a volume flow generated by the cooling fan can be guided. The tool housing has a second vent portion which is different from the first vent portion and which is located in the receiving recess and through which the volume flow generated by the cooling fan can be at least partially guided.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 25, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Holger Cecchin, Bernd Ziegler
  • Patent number: 10461557
    Abstract: A rechargeable tool battery (200), in particular for supplying a hand-held power tool (100), including a rechargeable tool battery housing (290), inside which a secondary cell battery (210) having a nominal cell voltage (UN) is situated, the rechargeable tool battery (200) including a rechargeable battery DC-DC converter (220), integrated into the rechargeable tool battery housing (290), which is electrically connected to the secondary cell battery (210), and is designed for raising the nominal cell voltage (UN) to a supply voltage (UV) which is tappable at a rechargeable tool battery terminal (295) of the rechargeable tool battery (200).
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: October 29, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Bernd Ziegler, Holger Cecchin, Ralf Meixner
  • Patent number: 10232499
    Abstract: A production method for a tool socket includes forming a hollow spindle An elongated recess is provided in the wall. The spindle includes unalloyed or low-alloyed steel grades. An insert includes a high-alloyed tool steel. The insert has a pedestal that is complementary to the recess and it also has a rib. The insert is placed into the hollow spindle in such a way that the pedestal rests in the recess and the rib projects into the interior of the spindle. The pedestal is soldered into the recess at a temperature that is above the Ac3 temperatures of the steel grades employed. The combined structure is cooled and then undergoes a heat treatment in an atmosphere containing sufficient carbon to carburize the hollow spindle but not sufficient to carburize the insert. The heat treatment of the combined structure is carried out at a temperature between 800° C. and 950° C. The combined structure is cooled down in a salt bath or liquid bath subsequent to the heat treatment.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 19, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Manfred Schallert, Michael Bischof, Jens Kondratiuk
  • Patent number: 10099360
    Abstract: A tool socket 2 for a hand-held power tool has a tubular main body 17 and a dust cap 27. The main body 17 has an end face 19 that is adjoined by a cylindrical or prismatic outer surface 36. As seen in the insertion direction 20, the dust cap 27 consecutively has a sealing ring 28, a middle section 29 and a seat 30. As seen in the insertion direction 20, the sealing ring 28 is arranged in front of the end face 19 of the main body 17. The seat 30 has a cylindrical or prismatic inner surface 35 that is in contact with the outer surface 36 of the main body 17. The middle section 29 has a conical inner surface 39 whose inner diameter 40 decreases in the insertion direction 20 down to the inner diameter 37 of the seat 30.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: October 16, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ralf Meixner, Udo Hauptmann