Patents by Inventor Steffen Geiger
Steffen Geiger 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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Publication number: 20240116160Abstract: Method for the open-loop and closed-loop control of a power tool, in particular a chipping hammer, having a drive, a control device, a sensor device, a transmission device and a handle apparatus, wherein the handle apparatus contains a lever element with a signal transmitter, said lever element being pivotable relative to the sensor device. The method includes: sensing a first and second position of the signal transmitter by the sensor device; determining an acceleration of the signal transmitter from the first position to the second position by the control device; setting a first rotational speed for the drive by the control device for the output of a first impact energy value of the transmission device when the determined acceleration reaches a first predetermined threshold value or setting a second rotational speed for the drive by the control device for the output of a second impact energy value of the transmission device when the determined acceleration reaches a second predetermined threshold value.Type: ApplicationFiled: November 4, 2020Publication date: April 11, 2024Inventors: Stefan RINGLER, Ehsan MAHDIZADEH, Steffen GEIGER
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Publication number: 20240100674Abstract: Handle apparatus on a power tool, in particular a chipping hammer, having a drive, a control device, a transmission device, wherein the handle apparatus contains a lever element that is pivotable relative to a housing of the power tool. The lever element is movable reversibly relative to the housing of the power tool by exertion of a force in one direction, and a sensor device is contained for sensing at least one first or second position of the lever element relative to the housing of the power tool, wherein a first rotational speed value for the drive is settable depending on the first sensed position of the lever element relative to the housing of the power tool or at least one second rotational speed value for the drive is settable depending on the second sensed position of the lever element relative to the housing of the power tool.Type: ApplicationFiled: November 4, 2020Publication date: March 28, 2024Inventors: Stefan RINGLER, Ehsan MAHDIZADEH, Steffen GEIGER
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Publication number: 20240100673Abstract: Handle apparatus on a power tool, in particular a chipping hammer, having a drive, a control device, a transmission device, wherein the handle apparatus contains a lever element that is pivotable relative to a housing of the power tool. The lever element is movable reversibly relative to the housing of the power tool by exertion of a force in one direction, and a sensor device is contained for sensing at least one first or second position of the lever element relative to the housing of the power tool, wherein a first rotational speed for the drive is set when the first position of the lever element relative to the housing of the power tool is sensed and a second rotational speed for the drive is set when the second position of the lever element relative to the housing of the power tool is sensed.Type: ApplicationFiled: November 4, 2020Publication date: March 28, 2024Inventors: Stefan RINGLER, Steffen GEIGER
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Publication number: 20230330826Abstract: Chisel, in particular for a jackhammer, wherein the chisel has a free shank via which the chisel can be inserted along a working axis into an insertion sleeve of a tool fitting, wherein the free shank has a hexagonal cross section at least in certain portions, and wherein at least one guide segment, which modifies the hexagonal cross section and extends along the working axis, is formed on a surface of the free shank.Type: ApplicationFiled: September 20, 2021Publication date: October 19, 2023Inventor: Steffen GEIGER
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Publication number: 20230049303Abstract: The invention relates to a coating slip comprising (i) an aqueous dispersion of one or more vinyl acetate polymers, obtainable by free-radically initiated emulsion polymerization of 77% to 99% by weight of vinyl acetate, 1% to 13% by weight of ethylene and 0% to 10% by weight of one or more monoethylenically unsaturated monomers that are neither vinyl acetate nor ethylene, where the amounts of the monomers add up to 100% by weight, (ii) an aqueous dispersion of one or more styrene copolymers, obtainable by free-radically initiated emulsion polymerization of a monomer composition comprising 35% to 70% by weight of styrene, 20% to 60% by weight of one or more esters of acrylic and/or methacrylic acid with alkanols having 1 to 12 carbon atoms, or of one or more conjugated aliphatic dienes, 1% to 10% by weight of one or more monomers comprising acid groups, where the amounts of the monomers add up to 100% by weight, (iii) inorganic pigments and (iv) optionally further auxiliaries, where the total amount ofType: ApplicationFiled: August 5, 2022Publication date: February 16, 2023Inventors: Christian JEHN-RENDU, Silke BOERNER, Steffen GEIGER
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Publication number: 20220314412Abstract: A hand-held power tool includes a handle which is grippable by a user, a tool body, a pivot pin, where the handle is pivotably mounted on the tool body by the pivot pin, and a tension spring, where the handle is hooked on the tool body by the tension spring and the handle is decoupled from vibrations acting on the tool body by the tension spring.Type: ApplicationFiled: July 2, 2020Publication date: October 6, 2022Inventors: Steffen GEIGER, Andres WELLMANN JELIC
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Publication number: 20210339372Abstract: The hand-held power tool (1) includes a housing (8), which has a first housing element (9) and a second housing element (10), wherein the first housing element (9) and the second housing element (10) are decoupled from one another and are movable relative to one another. The hand-held power tool (1) furthermore includes a tool holder (2) and a motor (4) for rotational and/or percussive driving of the tool holder (2). Furthermore, the hand-held power tool (1) has a magnetic field sensor (16) for detecting a spacing (L) between the first housing element (9) and the second housing element (10). Moreover, the hand-held power tool (1) includes a control device (18) for setting a motor speed of the motor (4) in accordance with the detected spacing (L).Type: ApplicationFiled: September 10, 2019Publication date: November 4, 2021Inventors: Steffen Geiger, Christian Augustin, Darko Saric, Markus Rank, Stefan SCHMID, Christian IGLHAUT
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Patent number: 11117250Abstract: A machine tool includes a tool holder and a pneumatic striking mechanism that includes, on a working axis, an exciter piston, a beater, and a pneumatic chamber disposed between the exciter piston and the beater. The exciter piston is drivable by the motor and includes a pot-shaped base body, a seal ring, and a tube-shaped cladding body. The pot-shaped base body has a lateral wall enclosing the working axis and a collar which protrudes in a radial direction. The tube-shaped cladding body is disposed on the pot-shaped base body surrounding the lateral wall. A groove is defined between the collar and the tube-shaped cladding body and the seal ring is disposed in the groove.Type: GrantFiled: June 20, 2017Date of Patent: September 14, 2021Assignee: Hilti AktiengesellschaftInventors: Pierre Pallmer, Steffen Geiger, Ferdinand Kristen, Franz Popp, Erich Daigeler, Henrik Luessmann
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Patent number: 10636597Abstract: A thermal fuse for an electrical circuit is described, with a contact arm by way of which two electrical conductors are electrically conductively connected to each other, wherein the connection of the contact arm to at least one of the two conductors is a soldered joint, which loses its strength when a activation temperature of the fuse is reached. In accordance with this disclosure a permanent magnet is provided, which generates a magnetic force, which lifts the contact arm from at least one of the two conductors as soon as the soldered joint loses its strength.Type: GrantFiled: July 11, 2019Date of Patent: April 28, 2020Assignee: BorgWarner Ludwigsburg GmbHInventors: Sisay Tadele, Alexander Dauth, Steffen Geiger, Markus Wetzel
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Publication number: 20200122310Abstract: A chisel (1) has a shaft (2), an impact surface (5), a tip (3), a longitudinal axis (7) which extends through the impact surface (5) and the tip (3), and a working section (6). The working section (6) has a trunk (11) which is arranged on the longitudinal axis, and two wings (12) which extend along the trunk (11) and protrude radially from the trunk (11). The two wings (12) are arranged in a V shape.Type: ApplicationFiled: July 31, 2017Publication date: April 23, 2020Inventor: Steffen GEIGER
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Publication number: 20200027682Abstract: A thermal fuse for an electrical circuit is described, with a contact arm by way of which two electrical conductors are electrically conductively connected to each other, wherein the connection of the contact arm to at least one of the two conductors is a soldered joint, which loses its strength when a activation temperature of the fuse is reached. In accordance with this disclosure a permanent magnet is provided, which generates a magnetic force, which lifts the contact arm from at least one of the two conductors as soon as the soldered joint loses its strength.Type: ApplicationFiled: July 11, 2019Publication date: January 23, 2020Inventors: Sisay Tadele, Alexander Dauth, Steffen Geiger, Markus Wetzel
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Publication number: 20190184538Abstract: A machine tool includes a tool holder and a pneumatic striking mechanism that includes, on a working axis, an exciter piston, a beater, and a pneumatic chamber disposed between the exciter piston and the beater. The exciter piston is drivable by the motor and includes a pot-shaped base body, a seal ring, and a tube-shaped cladding body. The pot-shaped base body has a lateral wall enclosing the working axis and a collar which protrudes in a radial direction. The tube-shaped cladding body is disposed on the pot-shaped base body surrounding the lateral wall. A groove is defined between the collar and the tube-shaped cladding body and the seal ring is disposed in the groove.Type: ApplicationFiled: June 20, 2017Publication date: June 20, 2019Applicant: Hilti AktiengesellschaftInventors: Pierre PALLMER, Steffen GEIGER, Ferdinand KRISTEN, Franz POPP, Erich DAIGELER, Henrik LUESSMANN
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Patent number: 10093014Abstract: An auxiliary handle is disclosed. The auxiliary handle has a frame-shaped grip which has a grip bar for gripping by a user, a crossbar, and two flanks connecting the grip bar to the crossbar. A loop-shaped clamping element is fastened to the crossbar for placing on a neck of a handheld machine tool. A clamping mechanism serves for clamping the element about the neck of the handheld machine tool. The frame-shaped grip has a frame-shaped base body molded from a first plastic, which has a solid body joint in each of the regions of the flanks. A casing made from a second plastic encloses the fame-shaped base body in the region of the grip bar and the solid body joints.Type: GrantFiled: December 15, 2015Date of Patent: October 9, 2018Assignee: Hilti AktiengesellschaftInventor: Steffen Geiger
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Publication number: 20180264636Abstract: A power tool is disclosed. The power tool has a pneumatic percussion mechanism with a percussion element guided on a working axis and a percussion surface pointing in a percussion direction, an exciter piston driven by a motor, and a pneumatic chamber formed between the exciter piston and the percussion element. The percussion element has a first partial body forming the percussion surface, a second partial body, and a spring element. The first partial body is moveable along the working axis relative to the second partial body. The second partial body has an abutment surface pointing in the percussion direction. The first partial body has an impact surface opposite the abutment surface. The spring element drives the first partial body relative to the second partial body in the percussion direction into a starting position in which the abutment surface is separated from the impact surface by a gap.Type: ApplicationFiled: December 15, 2015Publication date: September 20, 2018Applicant: Hilti AktiengesellschaftInventor: Steffen Geiger
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Publication number: 20180050447Abstract: An auxiliary handle is disclosed. The auxiliary handle has a frame-shaped grip which has a grip bar for gripping by a user, a crossbar, and two flanks connecting the grip bar to the crossbar. A loop-shaped clamping element is fastened to the crossbar for placing on a neck of a handheld machine tool. A clamping mechanism serves for clamping the element about the neck of the handheld machine tool. The frame-shaped grip has a frame-shaped base body molded from a first plastic, which has a solid body joint in each of the regions of the flanks. A casing made from a second plastic encloses the fame-shaped base body in the region of the grip bar and the solid body joints.Type: ApplicationFiled: December 15, 2015Publication date: February 22, 2018Applicant: Hilti AktiengesellschaftInventor: Steffen Geiger
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Publication number: 20160221172Abstract: A hand-held power tool is disclosed. The hand-held power tool has a drive and a pneumatic percussive mechanism. The percussive mechanism has a hammer movable along a working axis, a driving piston bound to the drive by a connecting rod, and a pneumatic chamber that couples a movement of the hammer to the driving piston. The connecting rod is suspended from the driving piston so as to swivel about a swiveling axis. A sealing ring encloses in a plane a lateral surface of the driving piston. The swiveling axis lies in the plane.Type: ApplicationFiled: September 24, 2014Publication date: August 4, 2016Applicant: Hilti AktiengesellschaftInventors: Steffen GEIGER, Stefan HAMMERSTINGL, Markus HARTMANN, Erwin MANSCHITZ
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Patent number: 8405007Abstract: Device for creating a temperature gradient, especially in gaseous media, comprising at least one ohmic resistor and at least two non-conducting insulators and at least one casing and at least one elastic element positioned between the non-conducting insulator and the casing.Type: GrantFiled: January 15, 2008Date of Patent: March 26, 2013Assignee: BERU AktiengesellschaftInventors: Martin Eller, Steffen Geiger, Erich Berdel, Nicolaus Wulff, Bernd Last, Gerald Fromm, Volker Brichzin
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Publication number: 20100126983Abstract: Device for creating a temperature gradient, especially in gaseous media, comprising at least one ohmic resistor and at least two non-conducting insulators and at least one casing and at least one elastic element positioned between the non-conducting insulator and the casing.Type: ApplicationFiled: January 15, 2008Publication date: May 27, 2010Inventors: Martin Eller, Steffen Geiger, Erich Berdel, Nicolaus Wulff, Bernd Last, Gerald Fromm, Volker Brichzin
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Patent number: 7231776Abstract: In an air-conditioning system for a motor vehicle having an internal combustion engine with an engine cooling circuit with a heat exchanger for heating and a heat pump with a refrigerant circuit including a heat exchanger for cooling the interior compartment of the motor vehicle, the refrigerant circuit includes also heat exchanges for heating or for cooling the coolant in the engine cooling circuit.Type: GrantFiled: January 31, 2006Date of Patent: June 19, 2007Assignee: DiamlerChrysler AGInventors: Roland Cäsar, Jan Gartner, Steffen Geiger, Klaus Harm, Jürgen Wertenbach
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Patent number: D972907Type: GrantFiled: February 19, 2021Date of Patent: December 20, 2022Inventors: Tobias Königer, Peter Gerold, Steffen Geiger