Patents by Inventor Markus Herrmann
Markus Herrmann 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).
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Patent number: 10794468Abstract: A hydraulic system for a transmission of a motor vehicle, the system having first and second pumps for conveying hydraulic fluid into primary and/or system-pressure circuits so that an intended pressure prevails in the circuits. The system further including liquid retention means preventing a flow of hydraulic fluid conveyed by the second pump from being conducted through the first pump when the first pump is not conveying and the second pump is conveying, and preventing a flow of hydraulic fluid conveyed by the first pump from being conducted through the second pump when the second pump is not conveying and the first pump is conveying. The system additionally including a sailing-mode lubricating valve for controlling, by an open-loop system, a flow rate of hydraulic fluid conveyed by the second pump into the primary and/or secondary system-pressure circuits such that the intended pressure is set in the system-pressure circuits.Type: GrantFiled: February 17, 2017Date of Patent: October 6, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Thilo Schmidt, Armin Haugg, Alexander Haberstock, Christian Popp
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Publication number: 20200309159Abstract: A hydraulic control unit (4) for an automatic transmission of a motor vehicle includes a volumetric flow rate control valve (49). The hydraulic control unit (4) is configured for delivering hydraulic fluid to an inlet (59) of the volumetric flow rate control valve (49). An outlet (31, 71) of the volumetric flow rate control valve (18, 49) is connected to a torque converter torus of the automatic transmission. In addition, the volumetric flow rate control valve (59) is configured for directing the hydraulic fluid across an orifice (66), so that the pressure of the hydraulic fluid is reduced and a constant flow of hydraulic fluid is feedable to a torque converter torus.Type: ApplicationFiled: March 31, 2020Publication date: October 1, 2020Inventors: Alexander Haberstock, Thilo Schmidt, Armin Haugg, Christian Schupp, Markus Herrmann
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Patent number: 10731758Abstract: A parking lock having a locking pawl engageable into a parking interlock gear, a connecting rod with an interlocking element to prevent the parking lock from disengaging when in the locked condition, a spring for engaging the parking lock, a hydraulically actuatable actuator for disengaging the parking lock, and an emergency release device for emergency disengagement of the parking lock. The piston is articulatedly connected to a first disk rotatably mounted on a selector shaft, a second disk connected to the selector shaft in a torsion-proof manner is articulatedly connected to the connecting rod, the spring is tensioned between the transmission housing and the second disk, and the emergency release device is connected to the selector shaft in a torsion-proof manner. The first disk is operatively connected to the second disk such that rotation of the second disk by the emergency release device does not rotate the first disk.Type: GrantFiled: October 15, 2018Date of Patent: August 4, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Marcel Gutzeit
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Patent number: 10690601Abstract: The invention relates to a device and a method for compensating for a material web offset in inspection systems for material webs which are moving in the direction of a material web length and/or a material web width. The method comprises the following steps: taking a first picture of a first portion of a material web at a first point in time with a camera which comprises a matrix chip, and taking a second picture of a second portion of the material web at a second point in time with the camera. A first active partial surface of the matrix chip is used for the first picture and a second active partial surface of the matrix chip is used for the second picture here, wherein the first active partial surface and the second active partial surface are not identical.Type: GrantFiled: October 20, 2017Date of Patent: June 23, 2020Assignee: Texmag GmbH VertriebsgesellschaftInventors: Markus Herrmann, Manfred Kroehn
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Patent number: 10655727Abstract: A greaser for a transmission includes a shaft (1) having an axial bore (3) and a plurality of axially spaced radial bores (6a, 6b, 6c). Each of at least one tube (8a, 8b) is inserted into a respective one of the axially spaced radial bores (6a, 6b) and extends radially inwardly into the axial bore (3) beyond a circumferential surface (4) of the axial bore (3) that is adjacent the respective one of the axially spaced radial bores (6a, 6b). Each of the at least one tube (8a, 8b) includes a slot (11a, 11b) at a tube end (10a, 10b) facing a central axis (2) of the shaft (1). The slot (11a, 11b) of each of the at least one tube (8a, 8b) extends along a central axis (9a, 9b) of the respective tube (8a, 8b) into an interior space of the axial bore (3).Type: GrantFiled: August 24, 2016Date of Patent: May 19, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Rainer Grundler, Markus Herrmann, Thilo Schmidt, Dietmar Gehring, Dirk Winkler
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Publication number: 20200149562Abstract: A cooling prioritization valve (5) for a hydraulic system (4) of a motor vehicle transmission (3) includes a valve housing (6), a valve slide (7), an inlet (18), an outlet (15), and a further outlet (21). A secondary system pressure circuit (39) of the hydraulic system (4) can be connected to the inlet (18), a cooler (54) can be connected to the outlet (15) or to the further outlet (21), and a suction loading (44) can be connected to the outlet (15) or to the further outlet (21). In a starting position, the inlet (18) is not connected either to the outlet (15) or to the further outlet (21). In a first control position, the inlet (18) is connected to the outlet (15). In a second control position, the inlet (18) is connected to the outlet (15) and the further outlet (21).Type: ApplicationFiled: November 8, 2019Publication date: May 14, 2020Inventors: Alexander Haberstock, Armin Haugg, Thilo Schmidt, Markus Herrmann
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Publication number: 20200091476Abstract: A rechargeable battery pack supplies electrical energy to hand-held power tools. The battery pack is designed for selective use in a vertical use position or a horizontal use position, and includes an external housing which has a housing base and a housing hood, which is connected to the housing base, and surrounds an interior space, and a rechargeable battery cell block which is arranged in the interior space. The battery pack has a water discharge structure for discharging water which is contained in the interior space and/or water which enters the external housing from the outside.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Inventors: Daniel WAGNER, Markus HERRMANN, Alexander NORDMANN, Joachim KOLB
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Publication number: 20200085173Abstract: A harness for a battery pack that can be worn on the back and that supplies electrical energy to hand-held electrical tools includes a support base and a support strap unit for the support base, as well as a holding device for releasably holding a battery pack in a support position on the support base. The holding device has a docking mechanism on the support base for pivotably docking the battery pack in a docking position, and a securing mechanism on the support base for securing the battery pack in the support position pivoted in towards the support base with respect to the docking position. The docking mechanism is arranged on a lower region of the support base.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Inventors: Alexander NORDMANN, Markus HERRMANN, Daniel WAGNER, Markus ZELLER, Joachim KOLB, Markus PFEIFER
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Publication number: 20200085172Abstract: A harness has a support base and a support strap unit for the support base, and a holding device for releasably holding a battery pack in a support position on the support base. The holding device has a docking mechanism on the support base for pivotably docking the battery pack in a docking position, and a securing mechanism for securing the battery pack in the support position pivoted in towards the support base with respect to the docking position. The docking mechanism is arranged on a lower region of the support base, and the securing mechanism has a securing slide which is arranged displaceably on the support base between a release position and a securing position and has a securing hook, or a securing lever which is arranged pivotably on the support base between a release position and a securing position and has a securing bow. The securing hook or securing bow is designed to engage securely behind a corresponding mating securing element of the battery pack in the support position.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Inventors: Alexander NORDMANN, Markus HERRMANN, Daniel WAGNER, Markus ZELLER, Joachim KOLB, Markus PFEIFER
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Publication number: 20200091475Abstract: A battery pack coupling system for mechanically and/or electrically coupling a battery pack optionally to a harness device or to a manually operated electrical device includes a mechanical backpack coupling interface at the battery pack for the releasable mechanical coupling to a corresponding mechanical battery pack-backpack coupling interface at the harness device and/or an electrical coupling interface at the battery pack and an electrical connecting line with a connecting plug body at the end which can be releasably coupled to the electrical coupling interface. The battery pack coupling system has a mechanical device coupling interface at the battery pack, different from the mechanical backpack coupling interface, for the releasable mechanical coupling to a corresponding mechanical battery pack-device coupling interface at the electrical device and/or a plug fastening mechanism through which the connecting plug body can be fastened releasably to the harness device.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Inventors: Markus HERRMANN, Alexander NORDMANN, Markus REDL, Joachim KOLB, Georg DUREGGER
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Publication number: 20190361103Abstract: The invention relates to an ultrasonic microscope for inspecting an object, comprising an object holder for holding the object in an object region; a scan head; a first transducer supported by the scan head and configured to emit first acoustic pulses along an emission direction, to focus the first acoustic pulses in a focal point, to detect second acoustic pulses emerging from the object and to output a first detection signal representing the second acoustic pulses detected by the first transducer; a first actuator configured to move the first transducer relative to the scan head along a vertical direction which is essentially parallel to the emission direction; and a controller configured to control the first actuator based on the first detection signal. Further, the invention relates to a carrier for carrying an acoustic pulse transducer of an ultrasonic microscope within an immersion liquid.Type: ApplicationFiled: May 25, 2018Publication date: November 28, 2019Inventors: Peter Hoffrogge, Martin Böckler, Mario Lowack, Matthias Koch, Martin Hinderer, Markus Herrmann, Tatjana Djuric-Rissner, Zyzi Ramos
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Patent number: 10480641Abstract: A system for locking and releasing a shifting position of a shifting element that is hydraulically actuatable by an actuating pressure is provided. The shifting element is arranged coaxially with a transmission shaft. The system includes a stop valve. The stop valve is subjectable to a control pressure that is separate from the actuating pressure of the shifting element. The stop valve is arranged radially inside the shifting element in the transmission housing.Type: GrantFiled: July 21, 2015Date of Patent: November 19, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventors: Peter Ziemer, Josef Haupt, Christoph Margraf, Markus Herrmann, Thilo Schmidt, Ulrich Doerr, Christian Sibla, Stefan Beck, Maik Wiesner, Stefan Brom
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Patent number: 10428854Abstract: Fastening system for a machine element (41), in particular for an elongate machine element (41), in particular for a toothed rack or a linear guide, for fastening in an abutment (45), in particular a machine bed or a flange, comprising: an eccentric bolt (1) which comprises a pin section (5) to be received in a receiving opening (55) of an abutment (45) and comprises a joining section (7), wherein the joining section is arranged in an eccentric manner in relation to the pin section (5), and an eccentric sleeve (3) to be slid onto the joining section (7).Type: GrantFiled: August 26, 2016Date of Patent: October 1, 2019Assignee: Wittenstein SEInventors: Markus Schmieder, Marco Heckmann, Jochen Endres, Markus Herrmann
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Publication number: 20190277422Abstract: A solenoid valve has a housing, which has a fluid inlet and a fluid outlet, and an electromagnetic drive, which comprises a solenoid with a fixed core and a movable armature, wherein the armature interacts with a valve seat. A pressure compensation chamber which is bordered by a membrane is formed in the armature, wherein the pressure compensation chamber is in fluid connection in terms of flow with the fluid inlet by means of a pressure compensation channel.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Inventors: Ralf STRASSWIEMER, Markus HERRMANN, Daniel BECK
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Publication number: 20190195369Abstract: A closed-loop control valve module for closed-loop controlling a fluid flow is described, which comprises an electrical valve actuator motor, wherein a valve spindle comprising a frustoconical sealing section is displaceable by means of the valve actuator motor along a valve spindle axis and the frustoconical sealing section, depending on the position of the valve spindle, releases or separates off a flow channel connecting a fluid inlet and a fluid outlet. A pressure compensation channel is provided which, at least in the closed state of the closed-loop control valve module, connects an end of the valve spindle opposite the valve actuator motor to a pressure compensation area or the fluid inlet in terms of flow.Type: ApplicationFiled: December 19, 2018Publication date: June 27, 2019Inventors: Markus HERRMANN, Daniel BECK, Ralf STRASSWIEMER, Michael STEPHAN
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Patent number: 10316969Abstract: An electrohydraulic transmission control system (1) includes a parking lock valve (2). The electrohydraulic transmission control system (1) is configured such that, during normal operation of the electrohydraulic transmission control system (1) in which at least one electrohydraulic pressure adjuster (EDSSYS) is actuatable with current, the parking lock valve (2) can be held in a defined operating state in which an actuation pressure (p_sys) acts on a parking lock cylinder (3) above a normal pressure level.Type: GrantFiled: June 22, 2017Date of Patent: June 11, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Thilo Schmidt, Tobias Rolser
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Patent number: 10293795Abstract: An electrohydraulic transmission control system having a parking lock valve by which a parking lock cylinder of a parking lock device can be charged with an actuation pressure adjustable in an operating-state-dependent manner by at least one pilot pressure adjustable in the region of an electrohydraulic pressure adjuster and/or one pressure source. Above a defined actuation pressure level, the parking lock valve is held in a defined operating state in which the actuation pressure can be applied to the parking lock cylinder. The actuation and pilot pressures can be applied to a valve device such that when the actuation and pilot pressure levels approximately correspond to one another, the region of the control system which conducts the actuation pressure is operatively connected, upstream of the parking lock valve, to a pressure region in the region of the valve device with a pressure lower than the defined actuation pressure level.Type: GrantFiled: June 22, 2017Date of Patent: May 21, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Thilo Schmidt, Tobias Rolser
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Publication number: 20190120375Abstract: A parking lock having a locking pawl engageable into a parking interlock gear, a connecting rod with an interlocking element to prevent the parking lock from disengaging when in the locked condition, a spring for engaging the parking lock, a hydraulically actuatable actuator for disengaging the parking lock, and an emergency release device for emergency disengagement of the parking lock. The piston is articulatedly connected to a first disk rotatably mounted on a selector shaft, a second disk connected to the selector shaft in a torsion-proof manner is articulatedly connected to the connecting rod, the spring is tensioned between the transmission housing and the second disk, and the emergency release device is connected to the selector shaft in a torsion-proof manner. The first disk is operatively connected to the second disk such that rotation of the second disk by the emergency release device does not rotate the first disk.Type: ApplicationFiled: October 15, 2018Publication date: April 25, 2019Inventors: Markus Herrmann, Marcel Gutzeit
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Publication number: 20190093756Abstract: A hydraulic system for a transmission of a motor vehicle, the system having first and second pumps for conveying hydraulic fluid into primary and/or system-pressure circuits so that an intended pressure prevails in the circuits. The system further including liquid retention means preventing a flow of hydraulic fluid conveyed by the second pump from being conducted through the first pump when the first pump is not conveying and the second pump is conveying, and preventing a flow of hydraulic fluid conveyed by the first pump from being conducted through the second pump when the second pump is not conveying and the first pump is conveying. The system additionally including a sailing-mode lubricating valve for controlling, by an open-loop system, a flow rate of hydraulic fluid conveyed by the second pump into the primary and/or secondary system-pressure circuits such that the intended pressure is set in the system-pressure circuits.Type: ApplicationFiled: February 17, 2017Publication date: March 28, 2019Inventors: Markus Herrmann, Thilo Schmidt, Armin Haugg, Alexander Haberstock, Christian Popp
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Patent number: 10215280Abstract: A hydraulic system for an automatic transmission a valve slide longitudinally adjustable in a valve housing between a first axial position and a second axial position such that a plurality of valve seat pockets are selectively brought into operative connection with each other. A control surface of the valve slide, first and second additional control surface of the valve slide and a spring of a parking brake valve are matched to one another such that the total actuating force applied to the slide valve displaces the slide valve to the first axial position when an actuating pressure of the parking brake unit, a pressure signal at the control surface of the valve slide and an additional pressure signal at the second additional control surface of the valve slide are applied.Type: GrantFiled: June 17, 2016Date of Patent: February 26, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Thilo Schmidt