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).
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Patent number: 12587062Abstract: 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: GrantFiled: May 3, 2021Date of Patent: March 24, 2026Assignee: Hilti AktiengesellschaftInventors: Wolfgang Schreiber, Helmut Burger, Konrad Artmann, Tobias Schmid, Manfred Ege
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Patent number: 12489345Abstract: 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: GrantFiled: November 19, 2020Date of Patent: December 2, 2025Assignee: Hilti AktiengesellschaftInventors: Konrad Artmann, Lothar Dietl, Tobias Schmid, Helmut Burger
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Patent number: 12316162Abstract: 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: GrantFiled: November 24, 2020Date of Patent: May 27, 2025Assignee: Hilti AktiengesellschaftInventors: Konrad Artmann, Lothar Dietl, Tobias Schmid, Helmut Burger
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Patent number: 11979065Abstract: 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: GrantFiled: November 20, 2019Date of Patent: May 7, 2024Assignee: Hilti AktiengesellschaftInventors: Tobias Schmid, Helmut Burger, Lothar Dietl
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Publication number: 20230198336Abstract: 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: ApplicationFiled: May 3, 2021Publication date: June 22, 2023Inventors: Wolfgang SCHREIBER, Helmut BURGER, Konrad ARTMANN, Tobias SCHMID, Manfred EGE
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Publication number: 20230041078Abstract: 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: ApplicationFiled: November 24, 2020Publication date: February 9, 2023Inventors: Konrad ARTMANN, Lothar DIETL, Tobias SCHMID, Helmut BURGER
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Publication number: 20230017431Abstract: 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: ApplicationFiled: November 19, 2020Publication date: January 19, 2023Inventors: Konrad ARTMANN, Lothar DIETL, Tobias SCHMID, Helmut BURGER
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Patent number: 11228219Abstract: 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: GrantFiled: October 12, 2017Date of Patent: January 18, 2022Assignee: Hilti AktiengesellschaftInventors: Torsten Tussing, Helmut Burger, Wolfgang Ludwig
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Publication number: 20210384803Abstract: 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: ApplicationFiled: November 20, 2019Publication date: December 9, 2021Inventors: Tobias SCHMID, Helmut BURGER, Lothar DIETL
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Patent number: 11084160Abstract: 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: GrantFiled: July 12, 2016Date of Patent: August 10, 2021Assignee: Hilti AktiengesellschaftInventors: Antonios Draganis, Florian Mayr, Helmut Burger, Georg Braml
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Patent number: 11027406Abstract: 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: GrantFiled: May 29, 2013Date of Patent: June 8, 2021Assignee: Hilti AktiengesellschaftInventors: Helmut Burger, Thomas Thanner, Rene Richter
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Patent number: 10675746Abstract: 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: GrantFiled: May 20, 2016Date of Patent: June 9, 2020Assignee: Hilti AktiengesellschaftInventor: Helmut Burger
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Publication number: 20190288575Abstract: 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: ApplicationFiled: October 12, 2017Publication date: September 19, 2019Inventors: Torsten TUSSING, Helmut BURGER, Wolfgang LUDWIG
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Publication number: 20180207784Abstract: 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: ApplicationFiled: July 12, 2016Publication date: July 26, 2018Applicant: Hilti AktiengesellschaftInventors: Antonios DRAGANIS, Florian MAYR, Helmut BURGER, Georg BRAML
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Publication number: 20180133885Abstract: 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: ApplicationFiled: May 20, 2016Publication date: May 17, 2018Applicant: Hilti AktiengesellschaftInventor: Helmut Burger
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Patent number: 9905966Abstract: 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: GrantFiled: May 29, 2013Date of Patent: February 27, 2018Assignee: Hilti AktiengesellschaftInventors: Helmut Burger, Thomas Thanner, Rene Richter
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Publication number: 20150151423Abstract: 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: ApplicationFiled: May 29, 2012Publication date: June 4, 2015Inventors: Helmut Burger, Thomas Tanner, Rene Richter
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Publication number: 20150132988Abstract: 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: ApplicationFiled: May 29, 2013Publication date: May 14, 2015Applicant: Hilti AktiengesellschaftInventors: Helmut Burger, Thomas Thanner, Rene Richter
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Publication number: 20120235520Abstract: 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: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: Hilti AktiengesellschaftInventor: Helmut BURGER
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Patent number: 8072116Abstract: 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: GrantFiled: October 21, 2009Date of Patent: December 6, 2011Assignee: Hilti AktiengesellschaftInventors: Martin Zacher, Armin Hoffmann, Helmut Burger, Markus Forstner