Patents by Inventor Sebastian Hanussek

Sebastian Hanussek 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).

  • Patent number: 11685034
    Abstract: A handheld work apparatus includes a work tool, a belt drive, a drive motor configured to drive the work tool via the belt drive, a brake unit configured to act on the belt drive, and a holding arrangement. The brake unit has a braking position and a released position and the holding arrangement is configured to hold the brake unit in the released position. The holding arrangement includes an electromagnet to which current is supplied during operation of the work apparatus.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: June 27, 2023
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Hanussek, Jan Rieger
  • Patent number: 10821627
    Abstract: A work apparatus has a drive motor and a work tool driven in a rotating manner by the drive motor. The work tool is at least partially covered by a protective hood which is mounted pivotably about the rotational axis of the work tool. A control unit is provided for controlling at least one component of the work apparatus. The work apparatus has a detection unit for detecting at least one position of the protective hood. The control unit is configured for controlling the at least one component of the work apparatus depending on the detected position of the protective hood. In a method for operating a work apparatus, the detection unit detects at least one position of the protective hood and supplies the information to the control unit. The control unit activates the at least one component depending on the detected position of the protective hood.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 3, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Hanussek, Lukas Zuercher
  • Patent number: 10816048
    Abstract: A work apparatus has a work tool driven by a combustion engine. A brake assembly has a brake element for braking the work tool as it slows down. In a braking position of the brake assembly, the work tool is braked, while, in a stand-by position of the brake assembly, the brake element enables the movement of the work tool. The brake element is held in the stand-by position by a holding force from an electromagnet supplied with energy by an electric generator driven by the engine, for which purpose, in the stand-by position of the brake assembly, a holding current is supplied to the electromagnet. To extend the holding time as the engine slows down, an operating parameter of the engine is monitored and, after a limit value of the operating parameter is reached, the holding current supplied to the electromagnet is reduced.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 27, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Michael Schneider, Felix Mayer, Tobias Deigendesch, Sebastian Hanussek
  • Publication number: 20200246957
    Abstract: A handheld work apparatus includes a work tool, a belt drive, a drive motor configured to drive the work tool via the belt drive, a brake unit configured to act on the belt drive, and a holding arrangement. The brake unit has a braking position and a released position and the holding arrangement is configured to hold the brake unit in the released position. The holding arrangement includes an electromagnet to which current is supplied during operation of the work apparatus.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventors: Sebastian Hanussek, Jan Rieger
  • Patent number: 10711913
    Abstract: A method is for activating an electromagnetic valve including a valve seat and a valve body. The valve body is movable between a first and the second position (A, B) via an electric drive coil. The drive coil is connected to a control device which as a function of a setting variable (S) energizes the drive coil with a signal sequence consisting of control signals in order to move the valve body. The control device as a function of the setting variable (S) sets a predetermined signal amplitude and/or a predetermined signal duration of the control signals. It is provided that at least one control signal of the signal sequence is formed with an amplitude superelevated above the predetermined signal amplitude and/or with a signal duration extended beyond the predetermined signal duration.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 14, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Michael Schneider, Felix Mayer, Tobias Deigendesch, Sebastian Hanussek
  • Patent number: 10703006
    Abstract: A handheld work apparatus has a tool and a brake assembly for the tool. The brake assembly has an actuating element which acts on a brake element of the brake assembly. The actuating element is movable between a fixed position wherein the tool is not braked, and a released position, wherein the brake element brakes the tool. To fix the actuating element in the fixed position, an electromagnet is provided. The electromagnet interacts with an anchor on the actuating element. The anchor is mounted via a pivot joint on an anchor pin to be pivotable about a pivot axis. A guide includes a guide part connected to the anchor and a guide part connected to the yoke, wherein, in the fixed position of the actuating element, the guide parts guide the anchor relative to the yoke in a transverse direction of an outrigger of the apparatus.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: July 7, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Patrick Levien, Tobias Deigendesch, Alexander Klein, Georg Maier, Sebastian Hanussek
  • Patent number: 10675694
    Abstract: A handheld work apparatus has a drive motor which drives a work tool rotationally via a belt drive. The belt drive has a first, driving pulley and a second, driven pulley. The second pulley is connected fixedly to the work tool so as to rotate therewith. The rotational speed of the second pulley is lower during operation than that of the first pulley. A brake unit acts on the belt drive. A first drive belt of a first stage and a second drive belt of a second stage act between the pulleys to transfer the drive torque. The belts each bring about a rotational speed reduction. The belt drive includes a redirection roll which bears against the belt, via which the highest drive torque is transmitted during operation. As a result, a braking operation of the work tool is enabled independently of the rotational speed of the tool.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: June 9, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Hanussek, Jan Rieger
  • Patent number: 10610938
    Abstract: A handheld work apparatus has a drive motor which drives a work tool in rotation via a belt drive. The belt drive has at least one first, driving pulley and at least one second, driven pulley. Between the first pulley and the second pulley there acts at least one drive belt for transmitting the drive torque. A second pulley is connected to the tool for conjoint rotation. The rotational speed of the second pulley is less than the rotational speed of the first pulley during operation. The work apparatus has a brake unit which acts on the first pulley. The belt drive includes at least one redirection roll. During braking, at least one redirection roll bears on the tight side of each drive belt which acts between the first pulley and the second pulley. This allows a simple structure and safe braking of the work tool.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 7, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Hanussek, Jan Rieger
  • Publication number: 20190070746
    Abstract: A work apparatus has a drive motor and a work tool driven in a rotating manner by the drive motor. The work tool is at least partially covered by a protective hood which is mounted pivotably about the rotational axis of the work tool. A control unit is provided for controlling at least one component of the work apparatus. The work apparatus has a detection unit for detecting at least one position of the protective hood. The control unit is configured for controlling the at least one component of the work apparatus depending on the detected position of the protective hood. In a method for operating a work apparatus, the detection unit detects at least one position of the protective hood and supplies the information to the control unit. The control unit activates the at least one component depending on the detected position of the protective hood.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 7, 2019
    Inventors: Sebastian Hanussek, Lukas Zuercher
  • Publication number: 20180355930
    Abstract: A work apparatus has a work tool driven by a combustion engine. A brake assembly has a brake element for braking the work tool as it slows down. In a braking position of the brake assembly, the work tool is braked, while, in a stand-by position of the brake assembly, the brake element enables the movement of the work tool. The brake element is held in the stand-by position by a holding force from an electromagnet supplied with energy by an electric generator driven by the engine, for which purpose, in the stand-by position of the brake assembly, a holding current is supplied to the electromagnet. To extend the holding time as the engine slows down, an operating parameter of the engine is monitored and, after a limit value of the operating parameter is reached, the holding current supplied to the electromagnet is reduced.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 13, 2018
    Inventors: Michael Schneider, Felix Mayer, Tobias Deigendesch, Sebastian Hanussek
  • Publication number: 20180354152
    Abstract: A handheld work apparatus has a tool and a brake assembly for the tool. The brake assembly has an actuating element which acts on a brake element of the brake assembly. The actuating element is movable between a fixed position wherein the tool is not braked, and a released position, wherein the brake element brakes the tool. To fix the actuating element in the fixed position, an electromagnet is provided. The electromagnet interacts with an anchor on the actuating element. The anchor is mounted via a pivot joint on an anchor pin to be pivotable about a pivot axis. A guide includes a guide part connected to the anchor and a guide part connected to the yoke, wherein, in the fixed position of the actuating element, the guide parts guide the anchor relative to the yoke in a transverse direction of an outrigger of the apparatus.
    Type: Application
    Filed: June 8, 2018
    Publication date: December 13, 2018
    Inventors: Patrick Levien, Tobias Deigendesch, Alexander Klein, Georg Maier, Sebastian Hanussek
  • Publication number: 20180355995
    Abstract: A method is for activating an electromagnetic valve including a valve seat and a valve body. The valve body is movable between a first and the second position (A, B) via an electric drive coil. The drive coil is connected to a control device which as a function of a setting variable (S) energizes the drive coil with a signal sequence consisting of control signals in order to move the valve body. The control device as a function of the setting variable (S) sets a predetermined signal amplitude and/or a predetermined signal duration of the control signals. It is provided that at least one control signal of the signal sequence is formed with an amplitude superelevated above the predetermined signal amplitude and/or with a signal duration extended beyond the predetermined signal duration.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 13, 2018
    Inventors: Michael Schneider, Felix Mayer, Tobias Deigendesch, Sebastian Hanussek
  • Publication number: 20170072482
    Abstract: A handheld work apparatus has a drive motor which drives a work tool rotationally via a belt drive. The belt drive has a first, driving pulley and a second, driven pulley. The second pulley is connected fixedly to the work tool so as to rotate therewith. The rotational speed of the second pulley is lower during operation than that of the first pulley. A brake unit acts on the belt drive. A first drive belt of a first stage and a second drive belt of a second stage act between the pulleys to transfer the drive torque. The belts each bring about a rotational speed reduction. The belt drive includes a redirection roll which bears against the belt, via which the highest drive torque is transmitted during operation. As a result, a braking operation of the work tool is enabled independently of the rotational speed of the tool.
    Type: Application
    Filed: November 25, 2016
    Publication date: March 16, 2017
    Inventors: Sebastian Hanussek, Jan Rieger
  • Publication number: 20170066068
    Abstract: A handheld work apparatus has a drive motor which drives a work tool in rotation via a belt drive. The belt drive has at least one first, driving pulley and at least one second, driven pulley. Between the first pulley and the second pulley there acts at least one drive belt for transmitting the drive torque. A second pulley is connected to the tool for conjoint rotation. The rotational speed of the second pulley is less than the rotational speed of the first pulley during operation. The work apparatus has a brake unit which acts on the first pulley. The belt drive includes at least one redirection roll. During braking, at least one redirection roll bears on the tight side of each drive belt which acts between the first pulley and the second pulley. This allows a simple structure and safe braking of the work tool.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventors: Sebastian Hanussek, Jan Rieger
  • Patent number: 8469167
    Abstract: A centrifugal clutch, especially in a hand held work apparatus, such as a cut-off machine (1), a brush cutter or the like, having a rotational axis (20), at least one movably mounted centrifugal weight (25) arranged at the drive end and a clutch drum (16) arranged at the output end. The centrifugal clutch (15) includes a brake device (18) which is released by the centrifugal weight (25) when the centrifugal weight (25) moves radially outward in relation to the rotational axis (20).
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 25, 2013
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Hanussek, Jörg Elfner, Tim Gegg
  • Publication number: 20110073435
    Abstract: A centrifugal clutch, especially in a hand held work apparatus, such as a cut-off machine (1), a brush cutter or the like, having a rotational axis (20), at least one movably mounted centrifugal weight (25) arranged at the drive end and a clutch drum (16) arranged at the output end. The centrifugal clutch (15) includes a brake device (18) which is released by the centrifugal weight (25) when the centrifugal weight (25) moves radially outward in relation to the rotational axis (20).
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Inventors: Sebastian Hanussek, Jörg Elfner, Tim Gegg
  • Publication number: 20110031248
    Abstract: A closure device for a vessel for holding an operating medium includes a tank closure (2) and a tank stub (1). The tank stub (1) defines a fill opening having a sealing surface (16) disposed therearound. The tank closure (2) includes an outer part (6) and an inner part (8) which are limitedly movable toward one another in the axial direction of the tank stub (1). The inner part (8) does not rotate but is guided axially displaceably in the tank stub (1) and the outer part (6) is rotatable relative to the inner part (8) on the tank stub (1) so as to be fix-tightly screwable thereon. A spring (26) is provided between the outer part (6) and the inner part (8). The spring biases the inner part (8) against the sealing surface (16) on the tank stub (1).
    Type: Application
    Filed: August 4, 2010
    Publication date: February 10, 2011
    Inventors: Sebastian Hanussek, Klaus Langhans, Marcel Förster