Patents by Inventor Andreas Forster
Andreas Forster 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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Publication number: 20240237883Abstract: The invention relates to an optical instrument having a housing (12), wherein situated in the housing (12) is a light source (14) which is designed to generate a first light flux which exits at a first interface (16) inside the housing (12), and a light supply (18) which is designed to guide a second light flux from outside the housing (12) into an interior of the housing (12) and to allow said light flux to exit at a second interface (22) inside the housing (12); wherein situated in the housing (12) is a light guide (24) which is designed to receive, either from the first interface (16) or from the second interface (22), light at a first end (26) via a third interface (28).Type: ApplicationFiled: May 19, 2022Publication date: July 18, 2024Applicant: Karl Storz SE & Co. KGInventors: Jonas Forster, Andreas Heni, Pascal Heni, Marcus Kupferschmid, Daniel Ulmschneider
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Patent number: 11946527Abstract: A vibration damper comprising a working cylinder, which is subdivided by an axially movable piston on a piston rod into a first and a second working chamber filled with a damping medium is disclosed. The vibration damper has at least one compensating reservoir for receiving the damping medium displaced by the piston rod. There is a flow connection between the two working chambers, in which connection there is incorporated a pump assembly. The pump assembly has a fluctuation in the delivery volume with a constant power supply. At least one pulsation accumulator is arranged within the flow connection, wherein the volume and spring rate of the pulsation accumulator are matched to a frequency of a fluctuation of the delivery volume of the pump assembly.Type: GrantFiled: November 8, 2021Date of Patent: April 2, 2024Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Publication number: 20230034560Abstract: A collision detection device on a motor vehicle for tracking a remote target vehicle for the detection of an imminent collision by fusing radar sensor data from a first environment sensor designed as a radar sensor with sensor data from a second environment sensor. First wheel acquisition data based on the radar sensor data from the first environment sensor and second wheel acquisition data based on sensor data from the second environment sensor are merged and a parameter of the target vehicle is established.Type: ApplicationFiled: October 14, 2020Publication date: February 2, 2023Applicant: Continental Automotive GmbHInventors: Alexander Kamann, Robert Naumann, Dagmar Steinhauser, Thomas Brandmeier, Andreas Forster, Holger Faisst, Frank Gruson
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Publication number: 20220154798Abstract: A vibration damper comprising a working cylinder, which is subdivided by an axially movable piston on a piston rod into a first and a second working chamber filled with a damping medium is disclosed. The vibration damper has at least one compensating reservoir for receiving the damping medium displaced by the piston rod. There is a flow connection between the two working chambers, in which connection there is incorporated a pump assembly. The pump assembly has a fluctuation in the delivery volume with a constant power supply. At least one pulsation accumulator is arranged within the flow connection, wherein the volume and spring rate of the pulsation accumulator are matched to a frequency of a fluctuation of the delivery volume of the pump assembly.Type: ApplicationFiled: November 8, 2021Publication date: May 19, 2022Inventor: Andreas Förster
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Patent number: 11098782Abstract: A damping valve arrangement of a vibration damper for a motor vehicle includes a damping valve body having a longitudinal axis A and a throughflow passage is covered by at least one valve disk, a spring arrangement has at least a first substantially disk-shaped spring element; and a force transmission disk arranged between the valve disk and the first spring element so as to be axially displaceable coaxial to the damping valve body. The force transmission disk has a first surface facing the first spring element and comprising a first contact ring with a first diameter, which first contact ring is axially elevated above the first surface, and a second surface opposite the first surface, which second surface faces the valve disk and comprises a second contact ring with a second diameter, which second contact ring is axially elevated above the second surface.Type: GrantFiled: December 11, 2017Date of Patent: August 24, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventor: Andreas Förster
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Patent number: 10851865Abstract: A frequency-dependent damping valve arrangement of a vibration damper having a damping piston with at least one check valve, a control arrangement arranged coaxial to the damping piston including a control pot with a pot wall and a control piston axially displaceably arranged in the control pot that axially limits a control space. The control piston has a seal arrangement that seals the control piston relative to the pot wall including a circumferential groove formed at the control piston and a seal ring arranged therein. The seal arrangement is constructed such that this seal arrangement increases its sealing effect with rising damping medium pressure in the control space and reduces its sealing effect with falling damping medium pressure in the control space.Type: GrantFiled: August 3, 2017Date of Patent: December 1, 2020Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Patent number: 10690216Abstract: A control arrangement for a frequency-dependent damping valve having a control pot and an axaially displaceable control piston that axially limits a control space in the control pot and is connected to the damping valve device via an inlet connection. A spring element is arranged between the control piston and the damping valve that introduces a spring force axially into the control piston and the damping valve. When the control piston displaces towards the damping valve and the spring element increases the pressing pressure of the valve disks to increase the damping force. An axial position of a stop in the control arrangement is adjusted by plastic deformation of the pot base. A deformation portion produced by the plastic deformation and a depression partially receives the guide bush. A cross section of the depression corresponds to an outer cross section of the guide bush received in the depression.Type: GrantFiled: May 8, 2019Date of Patent: June 23, 2020Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Patent number: 10557512Abstract: A vibration damper for a motor vehicle with a hydraulic unit and at least one valve for controlling the volume flow to the hydraulic unit, wherein the at least one valve and the hydraulic unit are arranged outside of the tube elements of the vibration damper and a motor vehicle including such vibration damper.Type: GrantFiled: August 16, 2017Date of Patent: February 11, 2020Assignee: ZF Friedrichshafen AGInventors: Andreas Förster, Achim Thomae
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Patent number: 10473180Abstract: A damping valve arrangement (1) for a vibration damper includes a damping piston (2) with a check valve, which damping piston (2) divides a cylinder (31) of the vibration damper into a first working chamber (32) and a second working chamber (33), and a control arrangement (3) with a control pot (8) and a control piston (9) which is axially movable therein. A connection channel (41) connects the first working chamber (32) to the second working chamber (33). The connection channel (41) is arranged such that it is at least partially closed by the control piston (9) during an axial displacement of the control piston (9) in direction of the damping piston (2) and opened again during an axial displacement of the control piston (9) in direction of the pot base (30).Type: GrantFiled: May 23, 2016Date of Patent: November 12, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventor: Andreas Förster
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Patent number: 10473178Abstract: Valve for a vibration damper having a valve housing and a valve slide movable in the valve housing to at least partially close at least one flow path of a fluid flowing through the valve. The valve has an input side and an output side. Pressure impingement surfaces of the valve slide are substantially equal for an opening pressure and for a closing pressure, and the valve slide has a restriction through which a pressure difference between opening pressure and closing pressure can be generated.Type: GrantFiled: August 21, 2014Date of Patent: November 12, 2019Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Publication number: 20190331193Abstract: A damping valve arrangement of a vibration damper for a motor vehicle includes a damping valve body having a longitudinal axis A and a throughflow passage is covered by at least one valve disk, a spring arrangement has at least a first substantially disk-shaped spring element; and a force transmission disk arranged between the valve disk and the first spring element so as to be axially displaceable coaxial to the damping valve body. The force transmission disk has a first surface facing the first spring element and comprising a first contact ring with a first diameter, which first contact ring is axially elevated above the first surface, and a second surface opposite the first surface, which second surface faces the valve disk and comprises a second contact ring with a second diameter, which second contact ring is axially elevated above the second surface.Type: ApplicationFiled: December 11, 2017Publication date: October 31, 2019Inventor: Andreas FÖRSTER
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Patent number: 10443673Abstract: A damping valve arrangement for a vibration damper is disclosed. This damping valve arrangement includes a damping piston with a check valve and a control arrangement with a control pot and a control piston that is axially movable therein. The control pot is shaped from a sheet metal has at least one stop that projects into the control space, axially supports the control piston at least indirectly, and defines a soft damping force characteristic. The stop is produced by a plastic deformation of the control pot.Type: GrantFiled: April 27, 2015Date of Patent: October 15, 2019Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Patent number: 10434834Abstract: A method for operating a motor vehicle with a chassis arrangement having at least two vibration dampers. A body control is carried out at least partially with the vibration dampers. The chassis arrangement further has at least one stabilizer. During transverse accelerations below a threshold acceleration the stabilizer contributes to the body control less than the vibration dampers and contributes more than the vibration dampers from the threshold acceleration upward.Type: GrantFiled: November 18, 2015Date of Patent: October 8, 2019Assignee: ZF Friedrichshafen AGInventors: Norbert Ackermann, Helmut Baalmann, Andreas Förster, Sven Greger, Steffen Heyn, Holger Kirchner, Sven Philip Krüger, Thomas Manger, Hendrik Marquar, Christian Maurischat, Stefan Rappelt, Alexander Schwarz, Jens Seiler, Achim Thomae, Michael Triebel
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Patent number: 10427485Abstract: A method of operating a motor vehicle with a chassis system comprising at least two, preferably four vibration damper includes carrying out a body control and a wheel control with the chassis system, and controlling the energy supply for the chassis system via an energy control arrangement. A motor vehicle performing the method is also disclosed.Type: GrantFiled: November 18, 2015Date of Patent: October 1, 2019Assignee: ZF Friedrichshafen AGInventors: Norbert Ackermann, Helmut Baalmann, Michael Triebel, Christian Maurischat, Achim Thomae, Andreas Förster, Steffen Heyn, Thomas Manger, Stefen Rappelt, Sven Greger, Sven Philip Krüger, Jens Seiler, Holger Kirchner, Hendrik Marquar, Alexander Schwarz
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Patent number: 10400848Abstract: A control arrangement for a frequency-dependent damping valve having a control pot and an axaially displaceable control piston that axially limits a control space in the control pot and is connected to the damping valve device via an inlet connection. A spring element is arranged between the control piston and the damping valve that introduces a spring force axially into the control piston and the damping valve. When the control piston displaces towards the damping valve and the spring element increases the pressing pressure of the valve disks to increase the damping force. An axial position of a stop in the control arrangement is adjusted by plastic deformation of the pot base. A deformation portion produced by the plastic deformation and a depression partially receives the guide bush. A cross section of the depression corresponds to an outer cross section of the guide bush received in the depression.Type: GrantFiled: September 26, 2016Date of Patent: September 3, 2019Assignee: ZF Friedrichshafen AGInventor: Andreas Förster
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Publication number: 20190264772Abstract: A control arrangement for a frequency-dependent damping valve having a control pot and an axaially displaceable control piston that axially limits a control space in the control pot and is connected to the damping valve device via an inlet connection. A spring element is arranged between the control piston and the damping valve that introduces a spring force axially into the control piston and the damping valve. When the control piston displaces towards the damping valve and the spring element increases the pressing pressure of the valve disks to increase the damping force. An axial position of a stop in the control arrangement is adjusted by plastic deformation of the pot base. A deformation portion produced by the plastic deformation and a depression partially receives the guide bush.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventor: Andreas FÖRSTER
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Publication number: 20190249744Abstract: A frequency-dependent damping valve arrangement of a vibration damper having a damping piston with at least one check valve, a control arrangement arranged coaxial to the damping piston including a control pot with a pot wall and a control piston axially displaceably arranged in the control pot that axially limits a control space. The control piston has a seal arrangement that seals the control piston relative to the pot wall including a circumferential groove formed at the control piston and a seal ring arranged therein. The seal arrangement is constructed such that this seal arrangement increases its sealing effect with rising damping medium pressure in the control space and reduces its sealing effect with falling damping medium pressure in the control space.Type: ApplicationFiled: August 3, 2017Publication date: August 15, 2019Inventor: Andreas FÖRSTER
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Publication number: 20190226546Abstract: A frequency-dependent damping valve arrangement of a vibration damper for a motor vehicle includes a damping piston with a check valve. The damping piston is arranged inside a cylinder at least partially filled with a damping fluid and is axially fixed to a carrier. A control arrangement is arranged at the carrier coaxial to the damping piston and includes a control pot, an axially displaceable control piston arranged in the control pot, and at least one spring arrangement arranged between the control piston and the check valve and has at least a first spring element. The control piston has a height difference between its radially outer edge and its radially inner edge facing the radial center of the control piston, which height difference defines a maximum deflection height of the first spring element.Type: ApplicationFiled: August 3, 2017Publication date: July 25, 2019Inventor: Andreas FÖRSTER
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Publication number: 20190195307Abstract: A frequency-dependent damping valve arrangement of a vibration damper having a damping piston with a check valve arranged inside of a cylinder. The damping piston is fastened to a carrier; a control arrangement arranged at the carrier includes a control pot, a control piston arranged in the control pot and slidingly axially displaceable at the carrier; and a spring arrangement arranged so as to be slidingly axially displaceable between the damping piston and the control piston at the carrier. The spring arrangement includes a first and a second disk-shaped spring element and at least one separating element arranged between the spring elements and which is slidingly axially displaceable at the carrier surface. The spring elements axially contact the separating element by their radially central portion and axially contact the damping piston and/or the control piston at least indirectly by their radial edge portion.Type: ApplicationFiled: August 3, 2017Publication date: June 27, 2019Inventor: Andreas FÖRSTER
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Publication number: 20190195308Abstract: A frequency-dependent damping valve arrangement including a damping piston with a check valve arranged inside a cylinder filled with a damping fluid; a control arrangement arranged at a carrier coaxial to the damping piston having a control pot and a control piston arranged in the control pot and axially displaceable at the carrier; a first end stop for limiting the axial movement of the control piston inside of the control pot. The end stop has a supporting disk and an adjusting disk. The adjusting disk is irreversibly plastically deformable and has a lower yield limit than supporting disk and/or the carrier. The axial end position of the control piston is adjustable by a plastic deformation of the adjusting disk. At least one of the structural component parts defines a free space for receiving the material of the adjusting disk which is displaced through the plastic deformation.Type: ApplicationFiled: August 3, 2017Publication date: June 27, 2019Inventor: Andreas FÖRSTER