Patents by Inventor Helmut Burger

Helmut Burger 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: 12587062
    Abstract: Positioning apparatus for an electric motor and bearing block, wherein the electric motor includes a rotor, a rotor shaft and a stator. The positioning apparatus is configured at least partially from an elastic material and in a substantially pot-like manner with an interior and can be positioned in a central recess of the bearing block for at least partially receiving a first end of the rotor shaft.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: March 24, 2026
    Assignee: Hilti Aktiengesellschaft
    Inventors: Wolfgang Schreiber, Helmut Burger, Konrad Artmann, Tobias Schmid, Manfred Ege
  • Patent number: 12489345
    Abstract: An electric motor containing a board holder and an angle measuring unit with at least one Hall sensor for detecting a rotation angle and at least two hooks for receiving and holding a winding wire, wherein the angle measuring unit is designed to commutate the electric motor as a function of the detected rotation angle. The board holder contains a pot-like recess with an end face, wherein the recess and the angle measuring unit are designed such that, in an assembled state, the angle measuring unit bears against the end face of the recess such that the angle measuring unit is positioned before the at least two hooks in an arrow direction.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: December 2, 2025
    Assignee: Hilti Aktiengesellschaft
    Inventors: Konrad Artmann, Lothar Dietl, Tobias Schmid, Helmut Burger
  • Patent number: 12316162
    Abstract: Rotor for an electric motor, having a rotor shaft and, mounted on the rotor shaft, a rotor core having a number of core laminations arranged along an axis of the rotor core. Each core lamination includes a central contoured aperture which is traversed by the rotor shaft and which includes at least two radially extending elevations and at least two cutouts positioned between the elevations, wherein, to form a press fit of the core laminations on the rotor shaft, a distance between the free ends of the elevations is less than a diameter of the rotor shaft, and wherein a duct extending peripherally on the rotor shaft is formed by the respective cutout in the successively arranged core laminations.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 27, 2025
    Assignee: Hilti Aktiengesellschaft
    Inventors: Konrad Artmann, Lothar Dietl, Tobias Schmid, Helmut Burger
  • Patent number: 11979065
    Abstract: Brushless electric motor for an electric handheld power tool, wherein the electric motor has an end plate and a Hall board which is arranged on the end plate, wherein the Hall board is axially fixed to the end plate by an elastic O-ring.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: May 7, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tobias Schmid, Helmut Burger, Lothar Dietl
  • Publication number: 20230198336
    Abstract: Positioning apparatus for an electric motor and bearing block, wherein the electric motor includes a rotor, a rotor shaft and a stator. The positioning apparatus is configured at least partially from an elastic material and in a substantially pot-like manner with an interior and can be positioned in a central recess of the bearing block for at least partially receiving a first end of the rotor shaft.
    Type: Application
    Filed: May 3, 2021
    Publication date: June 22, 2023
    Inventors: Wolfgang SCHREIBER, Helmut BURGER, Konrad ARTMANN, Tobias SCHMID, Manfred EGE
  • Publication number: 20230041078
    Abstract: Rotor for an electric motor, having a rotor shaft and, mounted on the rotor shaft, a rotor core having a number of core laminations arranged along an axis of the rotor core. Each core lamination includes a central contoured aperture which is traversed by the rotor shaft and which includes at least two radially extending elevations and at least two cutouts positioned between the elevations, wherein, to form a press fit of the core laminations on the rotor shaft, a distance between the free ends of the elevations is less than a diameter of the rotor shaft, and wherein a duct extending peripherally on the rotor shaft is formed by the respective cutout in the successively arranged core laminations.
    Type: Application
    Filed: November 24, 2020
    Publication date: February 9, 2023
    Inventors: Konrad ARTMANN, Lothar DIETL, Tobias SCHMID, Helmut BURGER
  • Publication number: 20230017431
    Abstract: An electric motor containing a board holder and an angle measuring unit with at least one Hall sensor for detecting a rotation angle and at least two hooks for receiving and holding a winding wire, wherein the angle measuring unit is designed to commutate the electric motor as a function of the detected rotation angle. The board holder contains a pot-like recess with an end face, wherein the recess and the angle measuring unit are designed such that, in an assembled state, the angle measuring unit bears against the end face of the recess such that the angle measuring unit is positioned in front of the at least two hooks in an arrow direction.
    Type: Application
    Filed: November 19, 2020
    Publication date: January 19, 2023
    Inventors: Konrad ARTMANN, Lothar DIETL, Tobias SCHMID, Helmut BURGER
  • Patent number: 11228219
    Abstract: A winding support (100) that serves to at least partially accommodate a stator coil of a stator, whereby the winding support (100) has a plurality of protrusions (1, 2, 3, 4, 5, 6) that can each be inserted in an insertion direction (E) into a cavity that is formed by two adjacent stator pole teeth of a laminated core of the stator, whereby at least one of the protrusions (1, 3, 5) has a different length in the insertion direction (E) than at least one of the other protrusions (2, 4, 6).
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: January 18, 2022
    Assignee: Hilti Aktiengesellschaft
    Inventors: Torsten Tussing, Helmut Burger, Wolfgang Ludwig
  • Publication number: 20210384803
    Abstract: Brushless electric motor for an electric handheld power tool, wherein the electric motor has an end plate and a Hall board which is arranged on the end plate, wherein the Hall board is axially fixed to the end plate by an elastic O-ring.
    Type: Application
    Filed: November 20, 2019
    Publication date: December 9, 2021
    Inventors: Tobias SCHMID, Helmut BURGER, Lothar DIETL
  • Patent number: 11084160
    Abstract: A hand-held power tool has a tool holder for holding a tool, an electric motor for driving the tool holder, and a handle for holding and guiding the hand-held power tool. A button has a button housing, a pin that can be moved on an actuation axis, and an electric slider which is connected to the pin and which slides on an electric slider track. The button housing is suspended in the handle in such a way that the button housing can be pivoted about a pivot axis perpendicular to the actuation axis.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 10, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Antonios Draganis, Florian Mayr, Helmut Burger, Georg Braml
  • Patent number: 11027406
    Abstract: The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical counter contact 32.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: June 8, 2021
    Assignee: Hilti Aktiengesellschaft
    Inventors: Helmut Burger, Thomas Thanner, Rene Richter
  • Patent number: 10675746
    Abstract: A hand-held power tool housing is disclosed. The housing includes a first housing part on the edge of which a first rebate is formed and a second housing part on the edge of which a second rebate is formed. The first rebate and the second rebate are formed in a complementary manner to one another such that the first housing part and the second housing part can be assembled in an assembly direction. A groove is formed on the edge of the first housing part and a spring is formed on the edge of the second housing part, forming an interlocking groove-spring connection in a transverse direction to the assembly direction.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 9, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventor: Helmut Burger
  • Publication number: 20190288575
    Abstract: A winding support (100) that serves to at least partially accommodate a stator coil of a stator, whereby the winding support (100) has a plurality of protrusions (1, 2, 3, 4, 5, 6) that can each be inserted in an insertion direction (E) into a cavity that is formed by two adjacent stator pole teeth of a laminated core of the stator, whereby at least one of the protrusions (1, 3, 5) has a different length in the insertion direction (E) than at least one of the other protrusions (2, 4, 6).
    Type: Application
    Filed: October 12, 2017
    Publication date: September 19, 2019
    Inventors: Torsten TUSSING, Helmut BURGER, Wolfgang LUDWIG
  • Publication number: 20180207784
    Abstract: A hand-held power tool has a tool holder for holding a tool, an electric motor for driving the tool holder, and a handle for holding and guiding the hand-held power tool. A button has a button housing, a pin that can be moved on an actuation axis, and an electric slider which is connected to the pin and which slides on an electric slider track. The button housing is suspended in the handle in such a way that the button housing can be pivoted about a pivot axis perpendicular to the actuation axis.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 26, 2018
    Applicant: Hilti Aktiengesellschaft
    Inventors: Antonios DRAGANIS, Florian MAYR, Helmut BURGER, Georg BRAML
  • Publication number: 20180133885
    Abstract: A hand-held power tool housing is disclosed. The housing includes a first housing part on the edge of which a first rebate is formed and a second housing part on the edge of which a second rebate is formed. The first rebate and the second rebate are formed in a complementary manner to one another such that the first housing part and the second housing part can be assembled in an assembly direction. A groove is formed on the edge of the first housing part and a spring is formed on the edge of the second housing part, forming an interlocking groove-spring connection in a transverse direction to the assembly direction.
    Type: Application
    Filed: May 20, 2016
    Publication date: May 17, 2018
    Applicant: Hilti Aktiengesellschaft
    Inventor: Helmut Burger
  • Patent number: 9905966
    Abstract: A hand-held machine tool has an integrated tool or a tool holder to receive a tool. An electric motor drives the tool or the tool holder. A battery pack for supplying power to the electric motor can be pushed into a guide in a first direction. Electrical contacts are disposed in a contact holder being offset with respect to each other in a second direction. A mounting for the contact holder holds the contact holder so that it can move in the first direction-and in a third direction with respect to the mounting. The first direction, second direction and third direction are orthogonal to each other in pairs. A spring acts upon the contact holder with a force opposite to the first direction. An end face oriented opposite to the first direction is provided with a centerer which cooperates with a centering support on the battery pack in order to prevent a relative movement between the end face and the battery pack in the third direction.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: February 27, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventors: Helmut Burger, Thomas Thanner, Rene Richter
  • Publication number: 20150151423
    Abstract: The hand machine tool according to the invention has an integrated tool or a tool holder 2 to receive a tool 4. An electric motor 5 serves to drive the tool 4 or the tool holder 2. A battery pack 18 for supplying power to the electric motor 5 can be pushed into a guide 23 in a first direction. A plurality of electrical contacts 31 for contacting counter contacts 32 of the battery pack 18 are disposed in a contact holder 36. Wires 40, which are connected in each case to one of the electrical contacts 31, have cores which extend in a wave-like manner in the first direction 28 adjacent to the electrical contact 32.
    Type: Application
    Filed: May 29, 2012
    Publication date: June 4, 2015
    Inventors: Helmut Burger, Thomas Tanner, Rene Richter
  • Publication number: 20150132988
    Abstract: A hand-held machine tool has an integrated tool or a tool holder to receive a tool. An electric motor drives the tool or the tool holder. A battery pack for supplying power to the electric motor can be pushed into a guide in a first direction. Electrical contacts are disposed in a contact holder being offset with respect to each other in a second direction. A mounting for the contact holder holds the contact holder so that it can move in the first direction-and in a third direction with respect to the mounting. The first direction, second direction and third direction are orthogonal to each other in pairs. A spring acts upon the contact holder with a force opposite to the first direction. An end face oriented opposite to the first direction is provided with a centerer which cooperates with a centering support on the battery pack in order to prevent a relative movement between the end face and the battery pack in the third direction.
    Type: Application
    Filed: May 29, 2013
    Publication date: May 14, 2015
    Applicant: Hilti Aktiengesellschaft
    Inventors: Helmut Burger, Thomas Thanner, Rene Richter
  • Publication number: 20120235520
    Abstract: A hand tool is disclosed. A polarity reversing switch has first contact devices which are immovable with respect to a machine housing and second contact devices on a brush holder. An operating element is adjustable between two positions for changing a direction of travel of an electric motor. At least one of the first contact devices has a first metal strip and a first spring. A section of the first metal strip has a first contact face for contacting one of the second contact devices. The first spring is prestressed in the direction toward the second contact device. At least one of the second contact devices has a second metal strip and a second spring. A section of the second metal strip has a second contact face for contacting one of the first contact devices. The second spring is prestressed in the direction of the first contact device.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Applicant: Hilti Aktiengesellschaft
    Inventor: Helmut BURGER
  • Patent number: 8072116
    Abstract: A brush holder (10) for a motor and having a plate-shaped base body (11) having an opening (13) for passing the motor rotor (30) therethrough, at least one brush receptacle (14) in which a carbon brush (15) is displaceably received, and an electronics can (12) projecting from the plate-shaped base body (11), closed at its side (21) adjacent to an axis (A) defined by the base body opening (13), and having an inner chamber (22) in which at least a portion of components of control electronics is received.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: December 6, 2011
    Assignee: Hilti Aktiengesellschaft
    Inventors: Martin Zacher, Armin Hoffmann, Helmut Burger, Markus Forstner