Patents by Inventor Stefan STEINMETZ
Stefan STEINMETZ 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: 20240035235Abstract: A method is for producing a wet-running friction paper, at least containing a fiber fraction consisting of at least one type of fiber, a fraction of at least one filler, and a fraction of a binder based on phenol resin. The fiber fraction, the filler fraction and the binder dissolved as a phenolate solution are processed together in a paper production process to form a pulp, and the binder is subsequently precipitated by means of a precipitating agent, preferably diluted sulfuric acid, and the pulp applied to a long screen is dried and cured while the temperature is raised.Type: ApplicationFiled: June 9, 2021Publication date: February 1, 2024Inventors: Stefan STEINMETZ, Gregor Mattern
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Publication number: 20230417293Abstract: A wet multi-plate clutch includes a plate carrier with a pair of fluid passage openings and a friction plate rotationally fixed and axially displaceable relative to the plate carrier. The friction plate has a carrier element and a pair friction pads fastened to the carrier element and delimiting a groove. The groove includes a groove geometrical center line. The groove geometrical center line may extend radially through a one of the pair of fluid passage openings, or it may extend radially between the pair of fluid passage openings. If the groove geometrical center line extend radially between the pair of fluid passage openings, one of the pair of friction pads may include a pad geometrical center line extending along a radial extent through a one of the pair of fluid passage openings.Type: ApplicationFiled: October 25, 2021Publication date: December 28, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Christian Denda, Stefan Steinmetz, Florian Krebs, Jens Kramer, Laurent Ineichen, Tobias Hebgen
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Patent number: 11850836Abstract: A method for producing a multi-layered wet friction material includes providing a bottom layer, providing a top layer produced independently of the bottom layer from different materials, and bonding the bottom layer to the top layer. The bottom layer and the top layer may be produced from different formulations and supplied as raw papers. A formulation of the top layer may include twenty to sixty percent (20%-60%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, and twenty-five to thirty-five percent (25%-35%) phenolic resin. A formulation of the bottom layer may include ten to fifty percent (10%-50%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, five to fifteen percent (5%-15%) carbon, and twenty-five to thirty-five percent (25%-35%) phenolic resin.Type: GrantFiled: November 26, 2019Date of Patent: December 26, 2023Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Alexander Bonet
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Publication number: 20230375057Abstract: A friction part for a frictionally operating device includes an annular-disc-like friction surface rotatable about a rotational axis in a wet-running manner relative to a mating surface. The annular-disc-like friction surface is formed from a paper material and includes a meso-geometric or a micro-geometric uneven portion in order to create an axially deep friction region and an axially high friction region in the annular-disc-like friction surface. The axially high friction region is more strongly preloaded than the axially deep friction region when the annular-disc-like friction surface and the mating surface are axially pressed together.Type: ApplicationFiled: September 14, 2021Publication date: November 23, 2023Applicant: Schaeffler Technologies AG & Co. KGInventor: Stefan Steinmetz
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Publication number: 20220243779Abstract: A method for producing a wet-running friction paper includes providing a fiber portion with a fiber, providing a filler portion with a filler, providing a binder portion with a phenol-resin-based binder, dissolving the binder portion to form a phenolate, and processing the fiber portion, the filler portion and the phenolate in a paper production process to form the wet-running friction paper.Type: ApplicationFiled: July 21, 2020Publication date: August 4, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Gregor Mattern
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Patent number: 11333213Abstract: A wet running friction lining includes a plastic matrix, which contains at least one filler. The wet running friction lining contains bentonite as a filler.Type: GrantFiled: November 20, 2016Date of Patent: May 17, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Markus Hesse, Stefan Steinmetz, Juergen Efing
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Publication number: 20220025581Abstract: A method for producing a thermal insulating paper includes producing the thermal insulating paper in a classic paper production process from a raw material having materials with good thermal properties and materials with electrically insulating properties in a paper matrix. A thermal insulating paper produced using the above method may include inorganic fibers, electrical insulators, aramid fibers, or binders.Type: ApplicationFiled: November 20, 2019Publication date: January 27, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Gregor Mattern, Lothar Hofmann
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Publication number: 20220010856Abstract: A method for producing a multi-layered wet friction material includes providing a bottom layer, providing a top layer produced independently of the bottom layer from different materials, and bonding the bottom layer to the top layer. The bottom layer and the top layer may be produced from different formulations and supplied as raw papers. A formulation of the top layer may include twenty to sixty percent (20%-60%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, and twenty-five to thirty-five percent (25%-35%) phenolic resin. A formulation of the bottom layer may include ten to fifty percent (10%-50%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, five to fifteen percent (5%-15%) carbon, and twenty-five to thirty-five percent (25%-35%) phenolic resin.Type: ApplicationFiled: November 26, 2019Publication date: January 13, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Alexander Bonet
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Publication number: 20200300322Abstract: A wet running friction lining includes a plastic matrix, which contains at least one filler. The wet running friction lining contains bentonite as a filler.Type: ApplicationFiled: November 20, 2016Publication date: September 24, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Markus HESSE, Stefan STEINMETZ, Juergen EFING
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Publication number: 20180298956Abstract: A disk pack for a wet-operated friction clutch includes a plurality of friction disks, a plurality of steel disks, and an additive. The plurality of friction disks each include a friction lining on each side. The plurality of steel disks are stacked alternately with the plurality of friction disks. The additive is formed of a polar residue and a nonpolar residue. At least one of the plurality of friction disks or at least one of the plurality of steel disks is treated with the additive prior to an initial startup of the disk pack. The polar residue is attached to the at least one of the plurality of friction disks or the plurality of steel disks. The nonpolar residue is arranged for binding to an operating fluid.Type: ApplicationFiled: October 7, 2016Publication date: October 18, 2018Applicant: Schaeffler Technologies AG & Co. KGInventor: Stefan Steinmetz
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Patent number: 9890817Abstract: A method for producing a friction body, in particular a wet friction disk in a motor vehicle, the friction body turning about a rotational axis during operation. The friction body has a friction area and a connection area and the connection area of the friction body is connected to a friction body carrier. A friction body, in particular a wet friction disc in a motor vehicle, is also provided.Type: GrantFiled: June 5, 2013Date of Patent: February 13, 2018Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Constanze Franke, Markus Hesse
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Patent number: 9687919Abstract: A method for introducing recesses in workpiece surfaces to be machined, with the aid of at least one tool. The invention is characterized in that two workpiece surfaces that face each other are simultaneously machined using the tool in order to introduce recesses into said workpiece surfaces.Type: GrantFiled: August 14, 2013Date of Patent: June 27, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Abdolreza Rasifard, Stefan Steinmetz, Patrick Knecht
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Patent number: 9638265Abstract: The invention relates to a segmented carrier sheet for at least one pad, such as a fin, comprising at least two segments. The invention is characterized in that the segments are connected to each other in a material-to-material fashion.Type: GrantFiled: June 13, 2014Date of Patent: May 2, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Patrick Knecht
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Patent number: 9631689Abstract: A method for applying friction lining elements to a friction lining support is provided. The invention is characterized in that friction lining elements are applied simultaneously to opposite sides of the friction lining support.Type: GrantFiled: September 11, 2013Date of Patent: April 25, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Patrick Knecht
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Publication number: 20170089415Abstract: The invention relates to a method for producing a wet friction lining wherein an oil is delivered through pores to a device operated using oil. In a method in which oil delivery from the wet lining is adjustable regardless of the production process for the wet friction lining, the pores are formed using a perforation process.Type: ApplicationFiled: May 6, 2015Publication date: March 30, 2017Applicant: Schaeffler Technologies AG & Co. KGInventors: Jurgen Kroll, Stefan Steinmetz
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Publication number: 20160116002Abstract: The invention relates to a segmented carrier sheet for at least one pad, such as a fin, comprising at least two segments. The invention is characterized in that the segments are connected to each other in a material-to-material fashion.Type: ApplicationFiled: June 13, 2014Publication date: April 28, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Patrick Knecht
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Publication number: 20160003307Abstract: A clutch disc (1) for a wet running clutch, including a carrier device (4) and friction lining elements (6, 7, 22, 23). The carrier device (4) is designed as an annular body with recesses (11, 12, 24) for the friction lining elements.Type: ApplicationFiled: February 19, 2014Publication date: January 7, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Friederike Grumer, Christoph Raber, Gregor Galwas, Stefan Steinmetz
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Publication number: 20150258614Abstract: A method for introducing recesses in workpiece surfaces to be machined, with the aid of at least one tool. The invention is characterized in that two workpiece surfaces that face each other are simultaneously machined using the tool in order to introduce recesses into said workpiece surfaces.Type: ApplicationFiled: August 14, 2013Publication date: September 17, 2015Applicant: Schaeffler Technologies AG & Co. KGInventors: Abdolreza Rasifard, Stefan Steinmetz, Patrick Knecht
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Publication number: 20150260250Abstract: A method for applying friction lining elements to a friction lining support is provided. The invention is characterized in that friction lining elements are applied simultaneously to opposite sides of the friction lining support.Type: ApplicationFiled: September 11, 2013Publication date: September 17, 2015Applicant: Schaeffler Technologies AG & Co. KGInventors: Stefan Steinmetz, Patrick Knecht
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Publication number: 20150060227Abstract: A mating surface of a friction pairing is provided which includes a friction surface that can be connected and/or is connected to the mating surface in a friction-fit manner in the operation of the friction pairing for torque transmission. The invention is characterized in that the mating surface is provided with a heat dissipation coating which has a significantly higher level of heat conductivity than a carrier material on which the heat dissipation coating is applied.Type: ApplicationFiled: March 21, 2013Publication date: March 5, 2015Applicant: Schaeffler Technologies GmbH & Co., KGInventor: Stefan Steinmetz