Patents by Inventor Serge Kursawe
Serge Kursawe 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: 11719279Abstract: A pivot bearing (1), includes a metallic first bearing element (2) made of steel, which is at least partially coated by means of a coating (5), a metallic second bearing element (3) made of steel, which is coated with a PTFE-containing sliding lining (6), wherein the coating (5) and the sliding lining (6) are in sliding contact, and wherein the coating (5) comprises at least one first layer (9) deposited on the first bearing element (2) by means of a PVD, CVD, or PECVD method, wherein the coating (5) also comprises at least one further layer which is arranged on the at least one first layer (9) and faces away from the first bearing element (2).Type: GrantFiled: September 9, 2019Date of Patent: August 8, 2023Assignee: Schaeffler Technologies AG & Co. KGInventors: Serge Kursawe, Thomas Weitkamp, Frank Bolte, Thomas König, Nikolay Podgaynyy
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Publication number: 20220025926Abstract: A pivot bearing (1), includes a metallic first bearing element (2) made of steel, which is at least partially coated by means of a coating (5), a metallic second bearing element (3) made of steel, which is coated with a PTFE-containing sliding lining (6), wherein the coating (5) and the sliding lining (6) are in sliding contact, and wherein the coating (5) comprises at least one first layer (9) deposited on the first bearing element (2) by means of a PVD, CVD, or PECVD method, wherein the coating (5) also comprises at least one further layer which is arranged on the at least one first layer (9) and faces away from the first bearing element (2).Type: ApplicationFiled: September 9, 2019Publication date: January 27, 2022Inventors: Serge Kursawe, Thomas Weitkamp, Frank Bolte, Thomas König, Nikolay Podgaynyy
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Publication number: 20220018396Abstract: The present disclosure relates to a sliding bearing comprising a first bearing element and a second bearing element. The first bearing element is coated in multiple layers. An inner layer is deposited on a base material of the first bearing element by means of a vapor deposition method. The inner layer has a structure, and an outer layer designed as a PTFE impregnation layer leveling the structure of the inner layer. The second bearing element is formed of PTFE fiber-reinforced plastic or has a PTFE-containing sliding lining.Type: ApplicationFiled: June 3, 2021Publication date: January 20, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Serge Kursawe, Thomas Weitkamp, Frank Bolte, Thomas König, Nikolay Podgaynyy
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Patent number: 11198932Abstract: A method for producing a reduced friction sliding surface on a machine element includes applying a coating comprising amorphous carbon to a surface of the machine element and locally heating the coating with a laser. The coating is heated to a temperature below an evaporation temperature of the coating to achieve a local volumetric increase in the coating and a local increase in a layer thickness of the coating. A surface structure of the coating includes a multiplicity of elevations resulting from a local phase transformation of the coating from amorphous carbon into graphite due to the locally heating.Type: GrantFiled: March 23, 2018Date of Patent: December 14, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Oliver Witter, Klaus Feldner, Stefan Dupke, Holger Pätzold, Frank Schlerege, Serge Kursawe
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Publication number: 20210292884Abstract: A method for producing a reduced friction sliding surface on a machine element includes applying a coating comprising amorphous carbon to a surface of the machine element and locally heating the coating with a laser. The coating is heated to a temperature below an evaporation temperature of the coating to achieve a local volumetric increase in the coating and a local increase in a layer thickness of the coating. A surface structure of the coating includes a multiplicity of elevations resulting from a local phase transformation of the coating from amorphous carbon into graphite due to the locally heating.Type: ApplicationFiled: March 23, 2018Publication date: September 23, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Oliver WITTER, Klaus FELDNER, Stefan DUPKE, Holger PÄTZOLD, Frank SCHLEREGE, Serge KURSAWE
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Patent number: 9115426Abstract: A coated article of steel having at least one layer having a high hardness and a high resistance to wear applied by a deposition (e.g., PVD, a CVD, or PECVD) process, at least one surface region of said article and at least one ALD layer comprising at least one layer of a material deposited by an ALD (atomic layer deposition) process on said at least one layer, wherein the steel of which the article is made is a martensitic grade of steel, wherein the at least one layer, is a DLC layer, a metal-DLC layer, or a CrAlN layer and has a thickness in the range from 0.5 microns to 4 microns and a hardness in the range from 20 GPa to 100 GPa, and wherein the ALD layer has a thickness in the range from 1 nm to 100 nm.Type: GrantFiled: December 27, 2012Date of Patent: August 25, 2015Assignee: Picosun OYInventors: Ivan Kolev, Paul Peeters, Roland Tap, Bertram Haag, Yashar Musayev, Serge Kursawe, Tim Matthias Hosenfeldt, Jürgen Gierl, Juhana Kostamo
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Patent number: 9115755Abstract: Disclosed is a bearing component having at least one layer having a high hardness and a high current insulation property, the layer comprising a nonconductive oxide layer selected from the group comprising an Al2O3 layer, a TaO layer, an SiO2 layer, a mixed layer comprising two or more of the foregoing oxides, a multilayer structure comprising alternating layers of two or more of the foregoing oxides and a DLC layer such as a ta-C layer, there being at least one ALD layer comprising at least one layer of a material deposited by an ALD (atomic layer deposition) process on the at least one layer having a high hardness and a high current insulation property, the ALD layer itself having a high current insulation property and comprising a material or layer structure selected from the said group of materials.Type: GrantFiled: December 27, 2012Date of Patent: August 25, 2015Assignee: Picosun OYInventors: Ivan Kolev, Paul Peeters, Roland Tap, Bertram Haag, Yashar Musayev, Serge Kursawe, Tim Matthias Hosenfeldt, Jürgen Gierl, Juhana Kostamo
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Publication number: 20110300310Abstract: A method and system for coating the functional surfaces of symmetrically serrated components, in particular the tooth flanks of gears, includes a coating source emitting coating material in the form of electrically charged particles in the direction of a revolving component. A high-quality functional surface coating of the component is achieved in that a shield is arranged in the beam path between the component and the coating source transversely to the irradiation direction, which shields the component from the coating beam in a contour area with a functional surface orientation inclined flatly with respect to the irradiation direction.Type: ApplicationFiled: July 7, 2011Publication date: December 8, 2011Applicants: Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung E.V., Bayerische Motoren Werke AktiengesellschaftInventors: Johann SCHNAGL, Serge Kursawe, Hans-Joachim Scheibe, Volker Weihnacht