Patents Assigned to Andreas Stihl AG & Co.
  • Hand-guided work apparatus and assembly including said hand-guided work apparatus and a support
    Patent number: 9689126
    Abstract: An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 27, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Christian Barth, Markus Hittmann, Thomas Maier, Johann Winterholler, Matti Schwalk, Felix Oberhofer
  • Venting valve for a container for liquids
    Patent number: 9677678
    Abstract: A venting valve for a container for liquid has a valve housing having a pressure compensation passage connecting the container interior with the container exterior. A valve member is arranged in the valve housing and controls the pressure compensation passage. An air-permeable filter body is secured within the valve housing and covers the pressure compensation passage, wherein a face of the filter body faces the container interior. A filter element covers the face of the filter body that is facing the container interior. The filter element is a securing element for the filter body. The filter element closes off an opening of the valve housing that opens into the container interior.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 13, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Steffen Joos
  • Internal combustion engine having a starter device
    Patent number: 9664143
    Abstract: An internal combustion engine has a supply channel for supplying combustion air. A throttle element is arranged in the supply channel. The engine has a starter device which enables a defined free flow cross section in the supply channel in a starting position. The starter device latches in the starting position and the latching is released by actuating an operator-controlled element. A first ramp controls the free flow cross section of the fuel port depending on the position of the throttle element. The free flow cross section of the fuel opening is controlled by a second ramp. The free flow cross section of the fuel opening, which is set using the second ramp, is greater than a flow cross section set using the first ramp for the same position of the throttle element. A favorable performance of the engine after starting thereof is achieved.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: May 30, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Gerhard Osburg, Dimitrios Galagas, Peter Schmidt
  • Carburetor for a hand-guided power tool and hand-guided power tool
    Patent number: 9650950
    Abstract: A carburetor for a hand-guided power tool has a carburetor housing and a carburetor rotor supported rotatably in the carburetor housing about an axis of rotation. A needle is disposed on the carburetor rotor and projects into a fuel opening of the carburetor. An adjusting element is operatively connected to the needle so as adjust a position of the needle relative to the carburetor rotor. The adjusting element has an engagement contour that is to be engaged by a tool for adjusting the adjusting element. A securing contour that is fixedly connected to the carburetor rotor is provided. The securing contour, at any point of the securing contour, has a spacing to the axis of rotation of at least approximately 10 mm.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 16, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Kai Oppenländer, Antonio Fattorusso, Jörg Amann, Arne Götzel
  • HEDGE TRIMMER
    Publication number: 20170127619
    Abstract: A cutting tool has a housing. A blade bar projects forwards from the housing along a longitudinal axis. An electric drive motor drives the blade bar. At least one battery supplies the drive motor with electrical energy. The blade bar, the drive motor and the battery are mounted on the housing. The cutting tool has a top handle arranged above a center of gravity of the hedge trimmer, and a rear handle arranged behind the hedge-trimmer center of gravity. The battery is arranged on the housing at least mainly in front of the rear handle.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: Andreas Stihl AG & Co KG
    Inventor: Heiko Rosskamp
  • Hedge trimmer
    Patent number: 9642313
    Abstract: A hedge trimmer having a drive motor, a gear mechanism, and a blade arrangement with at least one cutter bar, which is driven in a reciprocating manner by the drive motor via the gear mechanism in a longitudinal direction. The blade arrangement includes a guide mechanism that extends over at least a part of the length of the blade arrangement. The guide mechanism is embodied as a molded part that includes a generally flat fastening portion and a profiled guide portion. The cutter bar is longitudinally movably held on the guide portion.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 9, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Georg Heinzelmann
  • Work apparatus and method for determining the starting conditions thereof
    Patent number: 9644558
    Abstract: A work apparatus has an internal combustion engine and a starter device for starting the engine. Within a housing of the work apparatus, a first electrical component is arranged at a first location and a second electrical component is arranged at a second location. A control unit is provided which is connected to the first electrical component and to the second electrical component. The control unit detects a first temperature-dependent value of the first electrical component at the first location, and a second temperature-dependent value of the second electrical component at the second location, and identifies the starting conditions as a function of these values. The first electrical component is a first actuator and the second electrical component is a second actuator or a sensor.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: May 9, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Manuel Dangelmaier, Tim Gegg, Clemens Klatt
  • Handheld work apparatus having a drive motor for driving a work tool and method for operating said apparatus
    Patent number: 9636792
    Abstract: A handheld work apparatus has a drive motor for driving a tool, an operating element for operating the drive motor, a first inhibiting unit and a second inhibiting unit. Each inhibiting unit has a disable state and an enable state. The operating element is inhibited for operating the drive motor when at least one of the inhibiting units is in its disable state. The work apparatus further has a locking device which locks the first inhibiting unit in its enable state if the second inhibiting unit is in its enable state. A method for operating the work apparatus provides that the first inhibiting unit is locked in its enable state when the first inhibiting unit and the second inhibiting unit are situated in their enable states at the same time.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 2, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Mandalka, Georg Heinzelmann, Klaus Kaupp
  • Hand-held work implement and process for producing a braking device of a hand-held work implement
    Patent number: 9624993
    Abstract: A hand-held work implement having a tool has a braking device for the tool that includes a brake band which wraps around a brake drum. The brake band and the brake drum undergo friction as they move relative to one another during braking. At least one of the band or drum comprises an austenitic steel, a duplex steel, super duplex steel, a nickel-base alloy or a cobalt-base alloy and has a base body and a marginal layer. The hardness of the marginal layer is approximately 150% to approximately 600% of the hardness of the base body and the carbide proportion in the marginal layer is less than approximately 0.5% by weight. A process for production of the foregoing includes diffusing carbon and/or nitrogen into a marginal layer at a temperature of less than 500° C.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: April 18, 2017
    Assignee: ANDREAS STIHL AG & CO. KG
    Inventors: Norbert Apfel, Manfred Schumacher, Ralf Cornelsen
  • Handheld work apparatus
    Patent number: 9623547
    Abstract: A handheld work apparatus has a motor unit comprising a drive motor. The drive motor drives a tool of the work apparatus, for example a saw chain. The apparatus has a grip unit with a handle that is vibrationally decoupled from the motor unit via an antivibration element. The antivibration element is connected to a first component of the grip unit via a holding device and a second component of the motor unit via a holding element. Arranged in the connection of the first component to the second component through the antivibration element is a predetermined breaking point formed in a third component that is replaceable independently of the first component and the second component. The strength of the connection of the first component to the second component through the antivibration element is lowest at this predetermined breaking point.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: April 18, 2017
    Assignee: ANDREAS STIHL AG & CO. KG
    Inventors: Jan Kurzenberger, Jens Knauβ, Johannes Menzel, Sebastian Friedrich
  • Hand-held power tool
    Patent number: 9610700
    Abstract: In a hand-held power tool with a drive motor and a clutch connected to the drive motor and having an output part, the drive pinion is fixedly connected to the output part of the clutch so as to be driven by the drive motor for driving a tool. The drive pinion has a first individual part and a second individual part that are fixedly connected to each other. The first individual part has a toothing and the second individual part is connected to the output part of the clutch.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: April 4, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Hittmann, Ralf Schenk, Achim Rethaber
  • Hand-held power tool
    Patent number: 9610677
    Abstract: A hand-held power tool has a housing with a cylinder chamber. An internal combustion engine is arranged in the housing and the internal combustion engine has a cylinder arranged in the cylinder chamber. A device is provided that detects temperature information in the cylinder chamber when the internal combustion engine is in an inoperative state. An indicator device that indicates the temperature information is provided.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: April 4, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Mark Reichler, Klaus-Martin Uhl
  • Blower
    Patent number: 9587648
    Abstract: A blower has a blower tube and a fan unit that conveys an air flow through the blower tube. The fan unit has a fan having a fan axis. The fan conveys the air flow in the direction of the fan axis. The air flow exits the blower tube in an outflow direction at a tube aperture. The handle has on its lower side a grasping point, which in the operating position of the blower, lies on a vertical axis through the blower's center of gravity. The tube aperture has a center axis that is oriented in the outflow direction. So that the forces received by the user at the handle during operation can be made smaller, it is provided for the spacing from the center axis of the tube aperture to the grasping point to be smaller than the spacing from the fan axis to the grasping point.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: March 7, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Christian Barth, Markus Hittmann, Cornelius Gindele
  • Protective element
    Patent number: 9578910
    Abstract: A protective element is provided with a flat first material layer of a low-fold material and a flat second material layer of a folded cut-retardant material. A surface area of the second material layer in a stretched-out state is 1.2 to 2.5 times greater than a surface area of the first material layer in a stretched-out state. The second material layer is placed in a gathered state onto the first material layer. The first material layer forms a gliding layer for the second material layer.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: February 28, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Petra Strauβ
  • Air filter arrangement having a carburetor
    Patent number: 9581112
    Abstract: An air filter and carburetor arrangement includes a round filter and a round filter carrier having a filter plate. The round filter has a central filter axis, which lies at an angle to the filter plate. The carburetor has a carburetor body, in which an intake duct is configured with a duct longitudinal axis, and at one end of the intake duct on the carburetor body a filter connection side for the round filter carrier is configured, wherein the round filter carrier is fixed with at least one surface portion of the filter plate on the connection surface of the carburetor. The design is provided such that the duct longitudinal axis of the intake duct lies in the plane of the filter plate at a lateral distance (r) to the filter axis of the round filter fixed to the round filter carrier.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 28, 2017
    Assignee: ANDREAS STIHL AG & CO. KG
    Inventors: Karl-David Hermann, Frederik Herrmann, Lukas Zürcher
  • Outdoor power tool
    Patent number: 9572302
    Abstract: A tool has a housing. A blade bar projects forwards from the housing along a longitudinal axis. An electric drive motor drives the blade bar. At least one battery supplies the drive motor with electrical energy. The blade bar, the drive motor and the battery are mounted on the housing. The tool has a top handle arranged above a center of gravity of the tool, and a rear handle arranged behind the tool center of gravity. The battery is arranged on the housing at least mainly in front of the rear handle.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 21, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Heiko Rosskamp
  • Gas powered pressure washer
    Patent number: D779744
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: February 21, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Andreas Weinberg, Martin Ruf
  • Gas powered pressure washer
    Patent number: D779745
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: February 21, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Andreas Weinberg, Martin Ruf
  • Cutting head
    Patent number: D785420
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 2, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Michael Tinius
  • Battery pack
    Patent number: D790453
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 27, 2017
    Assignee: Andreas Stihl AG & Co., KG
    Inventor: Michael Tinius