Patents by Inventor Tommy Roitsch
Tommy Roitsch 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: 11386721Abstract: A system for analysis of operation of a hand-guided working apparatus, wherein the working apparatus includes a working tool and a drive system for driving the working tool, includes an optical recording device configured for recording a temporal succession of images of a working procedure on a workpiece using the working tool, an identification device configured for identifying a temporal succession of operational data values of the drive system during recording of the temporal succession of images, and at least one output device configured for outputting in each case at least one of the recorded images together with at least one identified operational data value correlated in time thereto.Type: GrantFiled: March 27, 2019Date of Patent: July 12, 2022Assignee: Andreas Stihl AG & Co. KGInventors: Patrick Russ, Tommy Roitsch, Friedrich Hollmeier, Claus Naegele, Michael Unterkircher, Michael Gramm
-
Publication number: 20220118598Abstract: A method is provided for obtaining information for operating an accumulator, and for obtaining periods of time for charging different accumulators using the method. An electrical gardening and/or forestry apparatus system with at least one accumulator for carrying out such a method is provided.Type: ApplicationFiled: December 27, 2021Publication date: April 21, 2022Inventors: Tommy ROITSCH, Simon TRINKLE
-
Patent number: 11245269Abstract: A method is provided for obtaining information for operating an accumulator, and for obtaining periods of time for charging different accumulators using the method. An electrical gardening and/or forestry apparatus system with at least one accumulator for carrying out such a method is provided.Type: GrantFiled: June 8, 2018Date of Patent: February 8, 2022Assignee: Andreas Stihl AG & Co. KGInventors: Tommy Roitsch, Simon Trinkle
-
Patent number: 11184761Abstract: A method for operating a wireless transmitter and a wireless receiver, wherein the wireless transmitter is assigned to a tool and is adapted to detect an operation condition of the tool and to send an operation condition signal as a function of the detected operation condition. The wireless receiver is assigned to an apparatus and is adapted to receive the sent operation condition signal and to control an operation condition of the apparatus as a function of the received operation condition signal. The method assigns the wireless transmitter and the wireless receiver by a user-operated, electric assignment apparatus such that the receiver controls the operation condition of the apparatus as a function of the received operation condition signal. The assignment apparatus is separate from the transmitter and the receiver.Type: GrantFiled: November 21, 2018Date of Patent: November 23, 2021Assignee: Andreas Stihl AG & Co. KGInventors: Patrick Russ, Tommy Roitsch
-
Publication number: 20200126319Abstract: A system for analysis of operation of a hand-guided working apparatus, wherein the working apparatus includes a working tool and a drive system for driving the working tool, includes an optical recording device configured for recording a temporal succession of images of a working procedure on a workpiece using the working tool, an identification device configured for identifying a temporal succession of operational data values of the drive system during recording of the temporal succession of images, and at least one output device configured for outputting in each case at least one of the recorded images together with at least one identified operational data value correlated in time thereto.Type: ApplicationFiled: March 27, 2019Publication date: April 23, 2020Inventors: Patrick RUSS, Tommy ROITSCH, Friedrich HOLLMEIER, Claus NAEGELE, Michael UNTERKIRCHER, Michael GRAMM
-
Patent number: 10630227Abstract: A method is provided for type-specific operating of an electric drive unit, wherein the drive unit is configured for coupling and driving a tool unit selected from a set of different types of tool units. The set includes at least one rotatory tool unit and at least one non-rotatory tool unit. The method includes: driving of a coupled tool unit by the drive unit; identifying operating data of the drive unit during the driving procedure; determining, based on the identified operating data, whether the coupled tool unit is a rotatory tool unit or a non-rotatory tool unit; and controlling the drive unit in a rotation control mode if the coupled tool unit is determined to be a rotatory tool unit, or in a non-rotation control mode if the coupled tool unit is determined to be a non-rotatory tool unit.Type: GrantFiled: March 7, 2019Date of Patent: April 21, 2020Assignee: Andreas Stihl AG & Co. KGInventors: Simon Trinkle, Andreas Wachtel, Tommy Roitsch
-
Patent number: 10532484Abstract: A motorized chain saw has a measuring system for measuring an object, in particular a trunk. The motorized chain saw has a saw chain, and the measuring system has an evaluation device. The measuring system includes a sensor system for capturing the movement of the saw chain as the saw chain rolls over an object to be measured. The evaluation device is configured to evaluate the movement of the saw chain captured by the sensor system. In a method for operating the motorized chain saw, the sensor system captures the movement of the saw chain as the saw chain rolls over an object to be measured, and the evaluation device evaluates the captured movement.Type: GrantFiled: August 17, 2018Date of Patent: January 14, 2020Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Meier, Patrick Russ, Harald Mang, Tommy Roitsch, Simon Jug, Sven Mueller, Philipp Sandbuehler
-
Patent number: 10489988Abstract: A device is provided for capturing operating data of a tool, wherein the tool is powered by an electric motor or a combustion engine, and wherein the device is embodied separately from the tool and is able to be coupled to the tool. The device includes: an operating data sensor, which is configured to wirelessly capture operating data of the tool, an operating data memory, which is configured to store operating data captured by the operating data sensor; and a communication interface, which is configured to wirelessly transmit operating data stored in the operating data memory to a terminal device.Type: GrantFiled: September 5, 2017Date of Patent: November 26, 2019Assignee: Andreas Stihl AG & Co. KGInventors: Patrick Russ, Tommy Roitsch, Kay-Steffen Gurr, Gernot Liebhard, Rudolf Saemann
-
Publication number: 20190280639Abstract: A method is provided for type-specific operating of an electric drive unit, wherein the drive unit is configured for coupling and driving a tool unit selected from a set of different types of tool units. The set includes at least one rotatory tool unit and at least one non-rotatory tool unit. The method includes: driving of a coupled tool unit by the drive unit; identifying operating data of the drive unit during the driving procedure; determining, based on the identified operating data, whether the coupled tool unit is a rotatory tool unit or a non-rotatory tool unit; and controlling the drive unit in a rotation control mode if the coupled tool unit is determined to be a rotatory tool unit, or in a non-rotation control mode if the coupled tool unit is determined to be a non-rotatory tool unit.Type: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Inventors: Simon TRINKLE, Andreas WACHTEL, Tommy ROITSCH
-
Publication number: 20190166487Abstract: A method for operating a wireless transmitter and a wireless receiver, wherein the wireless transmitter is assigned to a tool and is adapted to detect an operation condition of the tool and to send an operation condition signal as a function of the detected operation condition. The wireless receiver is assigned to an apparatus and is adapted to receive the sent operation condition signal and to control an operation condition of the apparatus as a function of the received operation condition signal. The method assigns the wireless transmitter and the wireless receiver by a user-operated, electric assignment apparatus such that the receiver controls the operation condition of the apparatus as a function of the received operation condition signal. The assignment apparatus is separate from the transmitter and the receiver.Type: ApplicationFiled: November 21, 2018Publication date: May 30, 2019Inventors: Patrick RUSS, Tommy ROITSCH
-
Publication number: 20180354153Abstract: A motorized chain saw has a measuring system for measuring an object, in particular a trunk. The motorized chain saw has a saw chain, and the measuring system has an evaluation device. The measuring system includes a sensor system for capturing the movement of the saw chain as the saw chain rolls over an object to be measured. The evaluation device is configured to evaluate the movement of the saw chain captured by the sensor system. In a method for operating the motorized chain saw, the sensor system captures the movement of the saw chain as the saw chain rolls over an object to be measured, and the evaluation device evaluates the captured movement.Type: ApplicationFiled: August 17, 2018Publication date: December 13, 2018Inventors: Johannes Meier, Patrick Russ, Harald Mang, Tommy Roitsch, Simon Jug, Sven Mueller, Philipp Sandbuehler
-
Publication number: 20180358822Abstract: A method is provided for obtaining information for operating an accumulator, and for obtaining periods of time for charging different accumulators using the method. An electrical gardening and/or forestry apparatus system with at least one accumulator for carrying out such a method is provided.Type: ApplicationFiled: June 8, 2018Publication date: December 13, 2018Inventors: Tommy ROITSCH, Simon TRINKLE
-
Publication number: 20180068493Abstract: A device is provided for capturing operating data of a tool, wherein the tool is powered by an electric motor or a combustion engine, and wherein the device is embodied separately from the tool and is able to be coupled to the tool. The device includes: an operating data sensor, which is configured to wirelessly capture operating data of the tool, an operating data memory, which is configured to store operating data captured by the operating data sensor; and a communication interface, which is configured to wirelessly transmit operating data stored in the operating data memory to a terminal device.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Inventors: Patrick RUSS, Tommy ROITSCH, Kay-Steffen GURR, Gernot LIEBHARD, Rudolf SAEMANN
-
Patent number: 8967099Abstract: A two stroke engine comprises a cylinder, in which a combustion chamber bounded by a piston is formed, and an intake passage. A carburetor forms a section of the intake passage, within which a throttle element is mounted pivotably, and at least one main fuel opening and at least one idling fuel opening open into the intake passage, which is divided downstream of the carburetor into an air passage and a mixture passage. The idling fuel opening feeds a secondary passage arranged within the mixture passage. In the idling position, the throttle element may be arranged adjacent to the upstream entry opening in the secondary passage, and the throttle element may have an opening which, in the idling position of the throttle element, is arranged in the region of the entry opening and connects the secondary passage to that region of the intake passage located upstream of the throttle element.Type: GrantFiled: December 15, 2011Date of Patent: March 3, 2015Assignee: Andreas Stihl AG & Co. KGInventors: Michael Grether, Niels Kunert, Tommy Roitsch, Klaus Geyer
-
Publication number: 20120152216Abstract: A two stroke engine comprises a cylinder, in which a combustion chamber bounded by a piston is formed, and an intake passage. A carburetor forms a section of the intake passage, within which a throttle element is mounted pivotably, and at least one main fuel opening and at least one idling fuel opening open into the intake passage, which is divided downstream of the carburetor into an air passage and a mixture passage. The idling fuel opening feeds a secondary passage arranged within the mixture passage. In the idling position, the throttle element may be arranged adjacent to the upstream entry opening in the secondary passage, and the throttle element may have an opening which, in the idling position of the throttle element, is arranged in the region of the entry opening and connects the secondary passage to that region of the intake passage located upstream of the throttle element.Type: ApplicationFiled: December 15, 2011Publication date: June 21, 2012Inventors: Michael GRETHER, Niels KUNERT, Tommy ROITSCH, Klaus GEYER
-
Patent number: 7363888Abstract: A two-stroke engine has a cylinder and a piston reciprocating in the cylinder and delimiting a combustion chamber. The piston has at least one piston recess. A crankshaft is rotatably arranged in a crankcase connected to the cylinder. A connecting rod connects piston and crankshaft. Transfer channels connect the crankcase to the combustion chamber in pre-defined piston positions. The transfer channels each have a transfer port opening into the combustion chamber. A device for supplying fuel and an air channel supplying combustion air are provided. In predetermined piston positions, the air channel is connected by the piston recess to the transfer ports. The air channel opens into the cylinder bore opposite the exhaust for the exhaust gases. The air channel, the piston recess, and the transfer channels define an air passage that provides approximately uniform distribution of air from the air channel into the transfer channels.Type: GrantFiled: January 13, 2006Date of Patent: April 29, 2008Assignee: Andreas Stihl AG & Co. KGInventors: Axel Klimmek, Silke Kaminski, Werner Geyer, Roland Schmidt, Tommy Roitsch, Ralf Blechsmidt, Andreas Bähner, Olaf Schmidt
-
Patent number: 7331314Abstract: A two-stroke engine has a cylinder with a combustion chamber that is delimited by a reciprocating piston that drives with a connecting rod a crankshaft rotatably supported in a crankcase. In predetermined positions of the piston, the crankcase is connected by at least one transfer channel to the combustion chamber. The two-stroke engine has a mixture channel for supplying a fuel/air mixture and an air channel that supplies substantially fuel-free air to the transfer channel. In order to provide a simple adjustment of the air channel to different two-stroke engines of a model range, a component in which the air channel is formed has a throttle member that is arranged at an end face of the component. The throttle member throttles the air flow through the air channel in at least one operating state of the two-stroke engine.Type: GrantFiled: December 14, 2005Date of Patent: February 19, 2008Assignee: Andreas Stihl AG & Co. KGInventors: Gerhard Osburg, Wolfgang Luithardt, Peter Schmidt, Tommy Roitsch, Michael Joos
-
Publication number: 20060225677Abstract: A two-stroke engine has a cylinder and a piston reciprocating in the cylinder and delimiting a combustion chamber. The piston has at least one piston recess. A crankshaft is rotatably arranged in a crankcase connected to the cylinder. A connecting rod connects piston and crankshaft. Transfer channels connect the crankcase to the combustion chamber in pre-defined piston positions. The transfer channels each have a transfer port opening into the combustion chamber. A device for supplying fuel and an air channel supplying combustion air are provided. In predetermined piston positions, the air channel is connected by the piston recess to the transfer ports. The air channel opens into the cylinder bore opposite the exhaust for the exhaust gases. The air channel, the piston recess, and the transfer channels define an air passage that provides approximately uniform distribution of air from the air channel into the transfer channels.Type: ApplicationFiled: January 13, 2006Publication date: October 12, 2006Applicant: ANDREAS STIHL AG & CO. KGInventors: Axel Klimmek, Silke Kaminski, Werner Geyer, Roland Schmidt, Tommy Roitsch, Ralf Blechschmidt, Andreas Bahner, Olaf Schmidt
-
Publication number: 20060180106Abstract: A two-stroke engine has a cylinder in which a combustion chamber is provided. The combustion chamber is delimited by a reciprocating piston that drives with a connecting rod a crankshaft rotatably supported in a crankcase. In predetermined positions of the piston, the crankcase is connected by at least one transfer channel to the combustion chamber. The two-stroke engine has a mixture channel for supplying a fuel/air mixture and an air channel that supplies substantially fuel-free air to the transfer channel. In order to enable in a simple way an adjustment of an air channel to different two-stroke engines of a model range, at one end face of a component in which the air channel is formed a throttle member is arranged that throttles the air flow through the air channel in at least one operating state of the two-stroke engine.Type: ApplicationFiled: December 14, 2005Publication date: August 17, 2006Applicant: Andreas Stihl AG & Co. KGInventors: Gerhard Osburg, Wolfgang Luithardt, Peter Schmidt, Tommy Roitsch, Michael Joos
-
Patent number: 6955043Abstract: A muffler assembly for an internal combustion engine of a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like includes an exhaust-gas muffler (1) which has a muffler housing (10). The muffler housing (10) is formed essentially from two half shells (24, 25) connected substantially fluid-tight to each other. The interior space of the muffler housing (10) includes at least two chambers (2, 3) which are partitioned from each other by a partition wall (4). A catalytic converter (5) is mounted in the partition wall (4). In the interior space of the muffler housing (10), an exhaust-gas inlet (6) opens which is connected to an exhaust-gas stub (9) of the cylinder (8) of the engine. The exhaust-gas muffler has an exhaust-gas outlet (7) which conducts exhaust gas from the interior space.Type: GrantFiled: February 4, 2004Date of Patent: October 18, 2005Assignee: Andreas Stihl AG & Co. KGInventors: Jörg Schlossarczyk, Georg Maier, Tommy Roitsch