Patents by Inventor Jan Kurzenberger

Jan Kurzenberger 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).

  • Publication number: 20210235626
    Abstract: A garden and/or forestry system has a hand-held gardening and/or forestry processing apparatus, and an assistance device, which is formed separately from the gardening and/or forestry processing apparatus and which is designed to support a user in operation of the gardening and/or forestry processing apparatus. The assistance device has a user interface, by which the assistance device is controllable by user inputs. The hand-held gardening and/or forestry processing apparatus has a user-actuable operator control element for user inputs to the user interface.
    Type: Application
    Filed: July 4, 2018
    Publication date: August 5, 2021
    Inventors: Oliver GERSTENBERGER, Maximilian EBERHARDT, Jan KURZENBERGER, Benjamin FREY
  • Patent number: 10800065
    Abstract: A hand-guided power tool has an internal combustion engine that is arranged in a power tool housing and drives a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit has a plug contact and a connecting plug is plugged into the plug contact. The connecting plug is connected by a connecting line to the at least one electric component. The connecting plug is arranged on a top side of the control device which is facing upwardly in the usual parking position of the power tool.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: October 13, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Günter Wolf, Jan Kurzenberger, Holger Vollmer, Marcel Förster, Ulrich Kapinsky
  • Patent number: 10525611
    Abstract: A handheld work apparatus has a combustion engine with a cylinder. A removable cover is fixed via a closure. The closure includes a tensioning element rotatable about a rotational axis and, in the locked position of the closure, is supported on a tension contour. The closure has a damping element. The damping element is held on a section of the cylinder in the axial direction of the rotational axis. During rotation from unlocked into locked position, the tensioning element is moved by the tension contour in the axial direction of the rotational axis. In the locked position of the closure, the tensioning element clamps the section of the cylinder in the axial direction of the rotational axis between a first abutment and a second abutment of the damping element. In the unlocked position of the closure, the tensioning element is held on the damping element on the cylinder.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: January 7, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Ulrich Kapinsky, Roland Hartinger
  • Publication number: 20190255727
    Abstract: A hand-guided power tool has an internal combustion engine that is arranged in a power tool housing and drives a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit has a plug contact and a connecting plug is plugged into the plug contact. The connecting plug is connected by a connecting line to the at least one electric component. The connecting plug is arranged on a top side of the control device which is facing upwardly in the usual parking position of the power tool.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Günter Wolf, Jan Kurzenberger, Holger Vollmer, Marcel Förster, Ulrich Kapinsky
  • Patent number: 10322519
    Abstract: A hand-guided power tool has a power tool housing and an internal combustion engine arranged in the power tool housing and configured to drive a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component of the power tool and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit is positioned laterally adjacent to the fuel tank device, when viewing the power tool in the usual parking position.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 18, 2019
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Günter Wolf, Jan Kurzenberger, Holger Vollmer, Marcel Förster, Ulrich Kapinsky
  • Publication number: 20190084179
    Abstract: A handheld work apparatus has a combustion engine with a cylinder. A removable cover is fixed via a closure. The closure includes a tensioning element rotatable about a rotational axis and, in the locked position of the closure, is supported on a tension contour. The closure has a damping element. The damping element is held on a section of the cylinder in the axial direction of the rotational axis. During rotation from unlocked into locked position, the tensioning element is moved by the tension contour in the axial direction of the rotational axis. In the locked position of the closure, the tensioning element clamps the section of the cylinder in the axial direction of the rotational axis between a first abutment and a second abutment of the damping element. In the unlocked position of the closure, the tensioning element is held on the damping element on the cylinder.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Inventors: Jan Kurzenberger, Ulrich Kapinsky, Roland Hartinger
  • Publication number: 20170165863
    Abstract: A hand-guided power tool has a power tool housing and an internal combustion engine arranged in the power tool housing and configured to drive a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component of the power tool and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit is positioned laterally adjacent to the fuel tank device, when viewing the power tool in the usual parking position.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: Günter Wolf, Jan Kurzenberger, Holger Vollmer, Marcel Förster
  • 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
  • Patent number: 9561599
    Abstract: A hand-held work implement comprises a housing, at least one tool and a combustion engine for driving the tool. The combustion engine has a cylinder and has a piston which drives a crankshaft in rotation about an axis of rotation. The crankshaft drives a fan impeller. The work implement has a handle unit with a handle bar and has an engine unit, these being connected to one another via anti-vibration elements. The combustion engine has a transverse plane which encompasses the cylinder longitudinal axis and which runs parallel to the axis of rotation of the crankshaft. The transverse plane divides the work implement into a front region, in which a section of the tool that projects out of the housing is arranged, and a rear region. The fixing of the anti-vibration element to the cylinder is realized in the front region.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 7, 2017
    Assignee: ANDREAS STIHL AG & CO. KG
    Inventors: Jan Kurzenberger, Jens Knauβ, Johannes Menzel, Sebastian Friedrich
  • Patent number: 9528450
    Abstract: A hand-held power tool has an internal combustion engine provided with a throttle trigger adjustable between an idle position and a full throttle position. The engine has an operating mode selector adjustable between an operating position and a start position. In an intake passage of the engine, a throttle element is arranged that is in a throttling position when the operating mode selector is in the start position. The throttle element is secured in the throttling position by a locking action. The locking action is released when the throttle trigger is moved from the idle position toward the full throttle position. A restoring element is coupled permanently to the position of the throttle trigger. The restoring element, when the throttle trigger is moved for releasing the locking action, acts on the operating mode selector and restores the operating mode selector from the start position into the operating position.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 27, 2016
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Werner Gräter
  • Patent number: 9216517
    Abstract: A handheld work apparatus has a drive motor (8) that is held in a motor housing (2). At least one handle (4) is provided, with a vibration gap (12) being formed between the handle (4) and the motor housing (2). The vibration gap (12) permits a relative movement between handle (4) and motor housing (2). The handle (4) is connected to the motor housing (2) via at least one anti-vibration device (13, 14, 15, 16, 31, 49, 50, 63) that bridges the vibration gap (12). The anti-vibration device (15, 16, 31, 49, 50, 63) has a longitudinal center axis (23, 24). The anti-vibration device (15, 16, 31, 49, 50, 63) bridges the vibration gap (12) via at least one tension element. The anti-vibration device (15, 16, 31, 49, 50, 63) also has a spring (17, 32, 33, 51, 55, 72, 73) arranged functionally in series with the tension element.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 22, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Johannes Menzel, Helmut Lux
  • Patent number: 9016246
    Abstract: In an internal combustion engine (2) of a portable handheld work apparatus, the cylinder (3) is provided with cooling ribs (4, 4?). A cooling airflow is generated by the fan wheel (13) and is guided over the cooling ribs. A carburetor (9) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor (9) takes place in that an opening (11), which passes the heated cooling air, is selectively closed or opened via a closure element (12). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element (12) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 28, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Thorsten Hecht, Sebastian Hänssler, Stefan Kummermehr
  • Publication number: 20150026988
    Abstract: A hand-held work implement comprises a housing, at least one tool and a combustion engine for driving the tool. The combustion engine has a cylinder and has a piston which drives a crankshaft in rotation about an axis of rotation. The crankshaft drives a fan impeller. The work implement has a handle unit with a handle bar and has an engine unit, these being connected to one another via anti-vibration elements. The combustion engine has a transverse plane which encompasses the cylinder longitudinal axis and which runs parallel to the axis of rotation of the crankshaft. The transverse plane divides the work implement into a front region, in which a section of the tool that projects out of the housing is arranged, and a rear region. The fixing of the anti-vibration element to the cylinder is realized in the front region.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Jan Kurzenberger, Jens Knauß, Johannes Menzel, Sebastian Friedrich
  • Publication number: 20150027745
    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: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Jan Kurzenberger, Jens Knauß, Johannes Menzel, Sebastian Friedrich
  • Publication number: 20140352660
    Abstract: A hand-held power tool has an internal combustion engine provided with a throttle trigger adjustable between an idle position and a full throttle position. The engine has an operating mode selector adjustable between an operating position and a start position. In an intake passage of the engine, a throttle element is arranged that is in a throttling position when the operating mode selector is in the start position. The throttle element is secured in the throttling position by a locking action. The locking action is released when the throttle trigger is moved from the idle position toward the full throttle position. A restoring element is coupled permanently to the position of the throttle trigger. The restoring element, when the throttle trigger is moved for releasing the locking action, acts on the operating mode selector and restores the operating mode selector from the start position into the operating position.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 4, 2014
    Applicant: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Werner Gräter
  • Publication number: 20120291725
    Abstract: In an internal combustion engine (2) of a portable handheld work apparatus, the cylinder (3) is provided with cooling ribs (4, 4?). A cooling airflow is generated by the fan wheel (13) and is guided over the cooling ribs. A carburetor (9) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor (9) takes place in that an opening (11), which passes the heated cooling air, is selectively closed or opened via a closure element (12). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element (12) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 22, 2012
    Inventors: Jan Kurzenberger, Thorsten Hecht, Sebastian Hänssler, Stefan Kummermehr
  • Publication number: 20120160532
    Abstract: A handheld work apparatus has a drive motor (8) that is held in a motor housing (2). At least one handle (4) is provided, with a vibration gap (12) being formed between the handle (4) and the motor housing (2). The vibration gap (12) permits a relative movement between handle (4) and motor housing (2). The handle (4) is connected to the motor housing (2) via at least one anti-vibration device (13, 14, 15, 16, 31, 49, 50, 63) that bridges the vibration gap (12). The anti-vibration device (15, 16, 31, 49, 50, 63) has a longitudinal center axis (23, 24). The anti-vibration device (15, 16, 31, 49, 50, 63) bridges the vibration gap (12) via at least one tension element. The anti-vibration device (15, 16, 31, 49, 50, 63) also has a spring (17, 32, 33, 51, 55, 72, 73) arranged functionally in series with the tension element.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Inventors: Jan Kurzenberger, Johannes Menzel, Helmut Lux
  • Patent number: 7958946
    Abstract: A handheld work apparatus has a housing (2) wherein an internal combustion engine (10) and a fuel-metering unit for the engine (10) are mounted. A throttle lever (6) is provided which is pivotally journalled on a handle (3). The handle (3) is connected to the housing (2) via at least one antivibration element (33). A vibration gap (9) is formed between the handle (3) and the housing (2). A transmitting unit (13) is provided for transmitting the pivot movement of the throttle lever (6) to the fuel-metering unit. The transmitting unit (13) includes a rigid transmitting element (17, 77) which bridges the vibration gap (9). The transmitting element (17, 77) is rotatably journalled on at least one bearing (18, 19, 59) and transmits the pivot movement of the throttle lever (6) as a rotation about a rotational axis (22) lying transversely to the vibration gap (9). A first bearing (19, 59) of the transmitting element (17, 77) is located on the fuel-metering unit.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: June 14, 2011
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jan Kurzenberger, Alexander Kraus
  • Publication number: 20100199931
    Abstract: In an internal combustion engine (2) of a portable handheld work apparatus, the cylinder (3) is provided with cooling ribs (4, 4?). A cooling airflow is generated by the fan wheel (13) and is guided over the cooling ribs. A carburetor (9) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor (9) takes place in that an opening (11), which passes the heated cooling air, is selectively closed or opened via a closure element (12). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element (12) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 12, 2010
    Inventors: Jan Kurzenberger, Thorsten Hecht, Sebastian Hänssler, Stefan Kummermehr
  • Publication number: 20080277130
    Abstract: A handheld work apparatus has a housing (2) wherein an internal combustion engine (10) and a fuel-metering unit for the engine (10) are mounted. A throttle lever (6) is provided which is pivotally journalled on a handle (3). The handle (3) is connected to the housing (2) via at least one antivibration element (33). A vibration gap (9) is formed between the handle (3) and the housing (2). A transmitting unit (13) is provided for transmitting the pivot movement of the throttle lever (6) to the fuel-metering unit. The transmitting unit (13) includes a rigid transmitting element (17, 77) which bridges the vibration gap (9). The transmitting element (17, 77) is rotatably journalled on at least one bearing (18, 19, 59) and transmits the pivot movement of the throttle lever (6) as a rotation about a rotational axis (22) lying transversely to the vibration gap (9). A first bearing (19, 59) of the transmitting element (17, 77) is located on the fuel-metering unit.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 13, 2008
    Inventors: Jan Kurzenberger, Alexander Kraus