Patents Assigned to Andreas Stihl AG & Co. KG
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Patent number: 12256668Abstract: A gardening appliance has a traction drive system with a clutch, an electric motor drive system and a user-triggerable signalling device. The electric motor drive system effects forward rotation and backward rotation of the clutch. An operating method includes: a) in a user-triggered manner, operating the electric motor drive system in a running-down and/or braking operating mode to lower a motor rotational speed of the forward-rotating electric motor drive system; b) acquiring whether a back electromotive force caused by the electric motor drive system satisfies a standstill criterion, wherein the standstill criterion is characteristic of an attainment of a standstill state of the electric motor drive system; and c) when the standstill criterion is satisfied, operating the electric motor drive system in a backward-rotation operating mode to effect the backward rotation of the electric motor drive system for disengaging the clutch for freewheeling operation.Type: GrantFiled: October 20, 2021Date of Patent: March 25, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Markus Kippes, Ingo Kugler, Tobias Froehlich
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Patent number: 12251813Abstract: A handheld power tool has an electric connecting socket and a handle for handling the power tool. The handle includes a plurality of components, wherein at least one component of the handle is used as a mounting of the electric connecting socket.Type: GrantFiled: May 11, 2022Date of Patent: March 18, 2025Assignee: Andreas Stihl AG & Co. KGInventor: Joachim Kolb
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Publication number: 20250083196Abstract: The invention relates to a pressure washer (1) comprising a port (2) for a liquid source (3), a high-pressure pump (4), a main line (5), through which liquid can be conveyed from the port (2) to a spray opening (6) of the main line (5) by the high-pressure pump (4), and a first electric motor (10) for driving the high-pressure pump (4), which generates a first amount of power. The pressure washer (1) comprises a second electric motor (20) for driving the high-pressure pump (7), which generates a second amount of power. The pressure washer (1) comprises a gearbox (30), which comprises an output shaft (31) for driving the high-pressure pump (4). The gearbox (30) is designed in such a way that the first amount of power and the second amount of power can be used simultaneously to drive the output shaft (31) of the gearbox (30).Type: ApplicationFiled: September 10, 2024Publication date: March 13, 2025Applicant: Andreas Stihl AG & Co. KGInventors: Alexander Kiebler, Lukas Zürcher, Christopher Tost
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Publication number: 20250065485Abstract: A work apparatus has an internal combustion engine. The internal combustion engine includes a crankcase in which a crankshaft is mounted rotatably about an axis of rotation. The work apparatus includes a fan spiral and a fan wheel arranged in the fan spiral for conveying cooling air for the internal combustion engine. A cylinder is arranged on the crankcase, and the cylinder includes a first outer side facing the fan wheel and a second outer side facing away from the fan wheel. The fan spiral has a first outlet opening for a first cooling air flow for cooling the first outer side of the cylinder. The fan spiral has a second outlet opening for a second cooling air flow for cooling the second outer side of the cylinder.Type: ApplicationFiled: August 20, 2024Publication date: February 27, 2025Applicant: Andreas Stihl AG & Co. KGInventors: Robert Köhli, Tilman Seidel, Mario Kuschewski, Jens Riehmann
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Patent number: 12233524Abstract: A handheld work apparatus includes a motor, a transmission shaft, a tool, a guide tube, a housing, and a first anti-vibration element. The motor via the transmission shaft drives the tool. The transmission shaft is received in the guide tube. The motor is disposed in the housing. The tool is disposed on a front longitudinal end of the guide tube. The housing is disposed on the rear longitudinal end of the guide tube. The housing at least partially encompasses the guide tube, wherein the guide tube projects from the housing. The first anti-vibration element is disposed such that it acts in a vibration-decoupling manner between the housing and the guide tube. The first anti-vibration element is disposed on that side of the motor facing the tool. The handheld work apparatus includes a second anti-vibration element connecting the motor to the housing in an at least indirectly vibration-decoupled manner.Type: GrantFiled: April 26, 2023Date of Patent: February 25, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Menzel, Lars Robert Kraft, Matthias Maier, Denis Ehrler, Felix Moessinger, Marc Schmid
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Patent number: 12233525Abstract: A working apparatus has a manual operating region, a tubular part extending away from the manual operating region, and an electric cable arrangement in the tubular part. The working apparatus includes a rod-shaped cable holder, which is inserted into and held in the tubular part and has a cable holding arrangement, by which the cable arrangement is held in a pre-mounted manner on the cable holder. An assembly method secures the cable arrangement on the cable holder by the cable holding arrangement, and inserts the cable holder, with the cable arrangement held thereon, into the tubular part. The working apparatus may be a battery-operated, hand-guided garden or forestry working apparatus.Type: GrantFiled: November 18, 2020Date of Patent: February 25, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Luecke, Jens-Peter Kern, Johanna Koch, Matthias Maier
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Publication number: 20250041887Abstract: A pressure washer includes a motor for a high-pressure pump, a battery pack to supply the motor with energy, a battery compartment for the battery pack and a housing. The battery compartment has an insertion opening through which the battery pack can be inserted into the battery compartment. The battery compartment has a base body. The pressure washer has a protective element for protecting the battery compartment from liquid, which is arranged radially outside the base body of the battery compartment and has a protective surface. The battery compartment has a projection which projects radially beyond the base body of the battery compartment. The protective surface points in an insertion direction. The pressure washer has at least one angular sector around the insertion axis in which the protective element axially overlaps the projection such that the projection lies in front of the protective surface with respect to the insertion direction.Type: ApplicationFiled: July 31, 2024Publication date: February 6, 2025Applicant: Andreas Stihl AG & Co. KGInventors: Christian Krauer, Alexander Kiebler, Michael Renz
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Publication number: 20250041907Abstract: A pressure washer includes a high-pressure pump by which cleaning fluid can be pressurized in the pressure washer, a hose reel, which is mounted so that it can rotate about an axis of rotation, a reel hose, which can be wound onto and unwound from the hose reel, and a housing. The high-pressure pump is arranged in the housing and includes at least one piston, which can be moved back and forth in a direction of movement to generate pressure on the cleaning fluid. The high-pressure pump has a middle axis running in the direction of movement of the at least one piston. During the operation of the pressure washer, cleaning fluid can be conveyed to the reel hose by the high-pressure pump. The axis of rotation runs transversely to the direction of movement of the at least one piston. The axis of rotation intersects the high-pressure pump.Type: ApplicationFiled: July 31, 2024Publication date: February 6, 2025Applicant: Andreas Stihl AG & Co. KGInventors: Christopher Tost, Alexander Kiebler, Christian Krauer
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Patent number: 12206136Abstract: A cell connector structure is provided for a rechargeable battery pack that supplies electrical drive power to an electrically driven gardening and/or forestry work appliance. The cell connector structure has: a plurality of cell connectors, wherein the cell connectors are designed for electrically connecting rechargeable battery cells, at least one cell connector element, wherein the cell connectors and the at least one cell connector element are designed for being arranged on one another and for being secured against becoming detached from one another, a plurality of voltage tap elements, wherein the voltage tap elements have voltage tap cables, wherein the voltage tap cables are designed for being electrically connected to the cell connectors, and at least one tap element body, wherein the voltage tap elements and the at least one tap element body are designed for being arranged on another and for being secured against becoming detached from one another.Type: GrantFiled: December 20, 2019Date of Patent: January 21, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Gerhard Stuebs, Sebastian Schenk, Denis Ehrler, Alexander Nordmann, Joachim Kolb
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Publication number: 20250017429Abstract: A portable work apparatus is designed as a vacuum and/or blower. It includes a housing (2) and a drive motor (3) arranged in the housing (2). A fan (4) has a spiral housing (5) and a fan wheel (6) arranged in the spiral housing (5). The spiral housing (5) has a housing section (8) which forms a first intake opening (9) of the fan (4). The fan wheel (6) has a first wall section (10) which forms a second intake opening (12) of the fan wheel (6). A gap seal (15) is formed between the housing section (8) of the spiral housing (5) and the first wall section (10) of the fan wheel (6). At least one air guide element (16) for generating a swirl zone (30) is formed in the gap seal (15).Type: ApplicationFiled: July 13, 2024Publication date: January 16, 2025Applicant: Andreas Stihl AG & Co. KGInventors: Benjamin Rutschke, Sebastian Piekarek, Thilo Stützel, Mathias Schmitz
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Patent number: 12193362Abstract: A garden tool has a controllable travel drive system, wherein the travel drive system is designed to propel the garden tool, and a speed control device, wherein the speed control device has a user-operable operating element and a displacement sensor device. At least one sensor part of the displacement sensor device is supported so as to be movable in translation. The operating element is designed by its operation to displace at least the sensor part in translation. A sensor signal of the displacement sensor device is dependent on a translational position of at least the sensor part. The speed control device is designed for controlling the travel drive system for the variable setting of a travel speed of the garden tool in accordance with the sensor signal.Type: GrantFiled: June 23, 2021Date of Patent: January 14, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Markus Gassner, Laura Pantel
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Patent number: 12196222Abstract: A guard for an intake channel or blow channel of a power tool has a first rib with a longitudinal direction, wherein the first rib has a first rib section that extends along the longitudinal direction of the first rib from a first end to a second end of the first rib section. The first rib section has an inherent frequency. One or more first disruptive bodies are arranged on the first rib section between the first end and the second end of the first rib section. The first disruptive bodies are configured to translatorily vibrate together with the first rib section. The first rib section and the one or more first disruptive bodies form a vibration system with a system inherent frequency, wherein the inherent frequency of the first rib section is different from the system inherent frequency.Type: GrantFiled: February 4, 2022Date of Patent: January 14, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Jonathan Seiz, Sebastian Junker
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Patent number: 12196445Abstract: A charger includes a charger housing with at least one battery-charging space accessible from the outside for positioning of a rechargeable battery unit, a charging electronics unit in the charger housing for controlling an electrical charging operation for the battery unit positioned on the battery-charging space, and a cooling-air-guiding structure configured for guiding a cooling-air flow from an air inlet structure of the charger housing via the charging electronics unit to an air outlet structure of the charger housing. The cooling-air-guiding structure has a cooling housing arranged in the interior of the charger housing and has a cooling housing air inlet structure and a cooling housing air outlet structure, and is configured for guiding the cooling-air flow through the cooling housing from the cooling housing air inlet structure to the cooling housing air outlet structure and from the latter to the air outlet structure of the charger housing.Type: GrantFiled: December 14, 2021Date of Patent: January 14, 2025Assignee: Andreas Stihl AG & Co. KGInventors: Michael Fuchs, Leonard Mattheis, Charis Hellmann, Markus Mueller
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Patent number: 12178153Abstract: An outdoor treatment system has an autonomous mobile outdoor treatment robot and a sensor and control device. The robot has a chassis and a contact element. The chassis executes a travelling movement in a direction of travel. The contact element executes an avoiding movement in an avoiding direction as a result of the travelling movement and contact between an obstacle and a lower contact point below a height limit, and executes a detection movement in a detection direction as a result of the travelling movement and contact between an obstacle and an upper contact point at or above the height limit. The contact element is mounted to move with respect to the chassis. The avoiding direction and the detection direction are different. The sensor and control device detects the detection movement and controls a robot protective function, and does not detect or evaluate the avoiding movement.Type: GrantFiled: April 28, 2022Date of Patent: December 31, 2024Assignee: Andreas Stihl AG & Co. KGInventors: Philip Wolf, Georg Duregger
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Patent number: 12176129Abstract: A power tool has a drive unit and an operating handle. At least one electrical line connects the operating handle and the drive unit to each other. The at least one electrical line is fastened at a first electrical connection location to the operating handle and at a second electrical connection location to the drive unit. A safety cable extends along the at least one electrical line between operating handle and drive unit. The safety cable has a first end section and a second end section. The first end section is connected mechanically fixed at a first fixation location to the operating handle. The second end section is connected mechanically fixed at a second fixation location to the drive unit. The at least one electrical line and the safety cable are guided together such that the safety cable forms a tear-off protection for the at least one electrical line.Type: GrantFiled: December 3, 2021Date of Patent: December 24, 2024Assignee: Andreas Stihl AG & Co. KGInventors: Andreas Dettling, Dennis Karl, Denis Ehrler, Markus König, Manuel Waiblinger, Jan Lukas Braun, Alexander Härtel
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Publication number: 20240415351Abstract: A connecting tube guides an air flow from a blower of a handheld work apparatus to a catcher bag. The connecting tube is curved in an arcuate manner in a plane of curvature and has an inlet opening and an outlet opening. The air flow in the connecting tube is deflected in the plane of curvature along a longitudinal center line by at least 70°. The connecting tube has flow cross-sections oriented perpendicular to the longitudinal center line, each having an inner height measured perpendicular to the plane of curvature. The connecting tube has a center flow cross-section oriented perpendicular to the longitudinal center line halfway between the inlet opening and the outlet opening. Each flow cross-section has an inner width in the direction perpendicular to its inner height. The inner height of the center flow cross-section is greater than the inner width of the center flow cross-section.Type: ApplicationFiled: June 13, 2024Publication date: December 19, 2024Applicant: Andreas Stihl AG & Co. KGInventors: Kai Freckmann, Sebastian Junker, Lars Robert Kraft, Markus Oesterle, Jonathan Seiz
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Patent number: 12164281Abstract: A hand-guided garden, forestry and/or construction working apparatus has an inactive state, an active state and a variable setting, as well as an apparatus operator control element which can be activated by a user. In the inactive state, the garden, forestry and/or construction working apparatus is designed to be transferred into the active state triggered by activation of the apparatus operator control element, and in the active state the garden, forestry and/or construction working apparatus is designed to change the setting and not to be transferred into the inactive state triggered by activation of the apparatus operator control element.Type: GrantFiled: October 28, 2020Date of Patent: December 10, 2024Assignee: Andreas Stihl AG & Co. KGInventors: Dirk Foerstner, Denis Ehrler, Michael Varga
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Publication number: 20240397861Abstract: A handheld work apparatus includes a housing with an upper housing part and a lower housing part, an electric motor arranged in the housing. A rotor shaft of the rotor is mounted relative to the housing by means of a first bearing and a second bearing so as to be rotatable about an axis of rotation. The rotor shaft extends in the direction of the axis of rotation from the upper housing part into the lower housing part. The first bearing is held by the upper housing part. The second bearing is held by the lower housing part, a receptacle formed at least partially on the upper housing part for fastening a tube to the housing— The upper housing part and the lower housing part at least partially overlap the stator in the direction of the axis of rotation.Type: ApplicationFiled: May 30, 2024Publication date: December 5, 2024Applicant: Andreas Stihl AG & Co. KGInventors: Timo Förg, Cornelius Gindele
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Patent number: 12148940Abstract: A structure for a battery pack for supplying an electrically driven work appliance with electrical drive power has a number of cell holder parts. The number of cell holder parts is designed for holding battery cells. At least two cell holder parts are designed for arrangement together in a holding arrangement and, in the holding arrangement, for jointly holding the battery cells. The cell holder parts, in the holding arrangement, jointly form at least a predominant part of a filling mould. The filling mould is designed for filling with a protective material for enclosing at least a part of a battery pack electronics unit. Additionally or alternatively, the structure has at least one cast assembly, wherein the cast assembly unites one of the number of cell holder parts and at least one casted-in cell contactor. The cell contactor is designed for contacting at least one cell terminal of at least one of the held battery cells.Type: GrantFiled: September 29, 2021Date of Patent: November 19, 2024Assignee: Andreas Stihl AG & Co. KGInventors: Christian Saemann, Florian Schumayer
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Patent number: 12138699Abstract: A saw chain includes connecting links and drive links that are mutually connected by rivets in an articulated manner about rivet axes. The rivets project through at least one rivet opening of one connecting link and through a rivet opening of a drive link. At least one rivet has, on one end face thereof, a depression having a depression edge and a depression base surrounded by the depression edge. The distance of the depression edge from a central plane of the saw chain increases at an increasing radial distance from the rivet axis. The distance (e) of the base from the central plane does not increase at any point of the base at an increasing radial distance from the rivet axis. A greatest distance (a) of the base from the rivet axis corresponds to 50% to 100% of half the core diameter (d) of the rivet.Type: GrantFiled: February 17, 2023Date of Patent: November 12, 2024Assignee: Andreas Stihl AG & Co. KGInventors: Georg Maier, Thomas Frei, Thomas Lux