Patents by Inventor Beno Widrig
Beno Widrig 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: 20190024795Abstract: The present invention relates to a tribological system (1; 2) comprising a first body (102; 105) and a second body (101; 107), which each form a component of an internal combustion engine (100), in particular a piston (102), a piston ring (105) or a cylinder (101, 107), and the surfaces (112, 108, 113) of which have a first and a second material area (11, 12) which come into contact with each other at least in some regions during operation and form a tribological contact, wherein the first and/or the second material area (11, 12) is formed as a layer on the basis of chromium oxide or aluminum chromium oxide. The invention also relates to an internal combustion engine (100) having such a system (1; 2).Type: ApplicationFiled: February 9, 2017Publication date: January 24, 2019Inventors: Peter ERNST, Jürgen RAMM, Florian SEIBERT, Beno WIDRIG
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Publication number: 20190024005Abstract: The present invention relates to coated sliding parts having coating systems which allow better sliding performance under dry and/or under lubricated conditions. The coating systems according to the present invention being characterized by having an outermost layer which—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—is a self-lubricated layer comprising molybdenum nitride, in case of sliding applications under dry or lubricated conditions, is a self lubricated layer with a structured surface comprising a multitude of essentially circular recesses with diameters of several micrometers or below, the recesses randomly distributed over the surface.Type: ApplicationFiled: July 5, 2018Publication date: January 24, 2019Inventors: Jurgen Ramm, Florian Seibert, Beno Widrig
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Publication number: 20180237902Abstract: A method for improving the performance and/or service life of pistons, wherein at least one PVD coating source includes a target. The coating source is arranged on a wall of the coating chamber and is periodically operated. The target surface to be evaporated is positioned parallel to the vertical axis and the surface sections to be coated are positioned in front of the target surface in the coating region using a holding device. The substrate receiving area is rotated periodically about the rotational axis of the substrate receiving area by a rotary system which is a coupling system, or is arranged on the coupling system, or is a part of the coupling system. The rotational axis and the vertical axis form an angle which is larger than 10° and smaller than 180° such that the coating material reaches each part of the individual surface sections at least once.Type: ApplicationFiled: February 17, 2016Publication date: August 23, 2018Inventors: Beno Widrig, Arvid Stellmacher, Ruedi Roppel, Juergen Ramm
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Publication number: 20180230042Abstract: Component surfaces are coated with thermally stable layers. In particular infrared mirror surfaces or surfaces of combustion chambers are coated with at least one layer consisting of thermally stable Al—Cr—O in such a manner that the absorption, reflection or transmission of infrared radiations (hereinafter also called thermal radiations) is influenced.Type: ApplicationFiled: December 28, 2016Publication date: August 16, 2018Inventors: Juergen Ramm, Othmar Zueger, Beno Widrig, Helmut Rudigier
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Patent number: 10041017Abstract: The present invention relates to coated sliding parts having coating systems which allow better sliding performance under dry and/or under lubricated conditions. The coating systems according to the present invention being characterized by having an outermost layer which—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—is a self-lubricated layer comprising molybdenum nitride, in case of sliding applications under dry or lubricated conditions, is a selflubricated layer with a structured surface comprising a multitude of essentially circular recesses with diameters of several micrometers or below, the recesses randomly distributed over the surface.Type: GrantFiled: March 11, 2013Date of Patent: August 7, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jurgen Ramm, Florian Seibert, Beno Widrig
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Patent number: 9997338Abstract: This invention relates to an arc-based method for the deposition of insulating layers and to an arc-based method for low-temperature coating processes, in which an electric arc discharge, ignited and applied on the surface of a target in an arc source, is simultaneously fed a direct current and a pulsed or alternating current. The invention further relates to an arc source in which the target is connected to a power supply unit that encompasses either a minimum of one pulsed high-current power supply 18, 18? and an additional power supply 13?, 18?, or a power supply 21, 21?, 22 designed with switchable combinatorial circuitry.Type: GrantFiled: April 8, 2005Date of Patent: June 12, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jürgen Ramm, Oliver Gstoehl, Beno Widrig, Daniel Lendi
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Patent number: 9945024Abstract: In order to produce zirconia-based layers on a deposition substrate, wherein reactive spark deposition using pulsed spark current and/or the application of a magnetic field that is perpendicular to the spark target are employed, a mixed target comprising elemental zircon and at least one stabilizer is used, or a zirconium target comprising elemental zirconium is used, wherein in addition to oxygen, nitrogen is used as the reactive gas. As an alternative, combined with the use of the mixed target, nitrogen can also be used as the reactive gas in addition to oxygen.Type: GrantFiled: September 24, 2010Date of Patent: April 17, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jürgen Ramm, Beno Widrig
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Patent number: 9905399Abstract: The invention relates to a method for operating a pulsed discontinuous spark discharge. The spark is fed via a capacitor. Between the pulses there are switched-off time intervals during which no spark current flows. Within the pulses, that is to say during the switched-on time intervals, the supply of charge is stopped upon a current threshold being reached and is restarted, with the result that subpulses occur within the pulses. The time intervals and subpulses are chosen according to the invention such that when the capacitor is switched on again, the spark discharge readily ignites again.Type: GrantFiled: March 26, 2012Date of Patent: February 27, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jürgen Ramm, Beno Widrig, Kurt Ruhm
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Patent number: 9890450Abstract: A coating method based on gas phase deposition by arc evaporation, with the steps: selecting a first target as a material source for the coating; providing a coating chamber with an arc evaporation source including the selected target; loading the chamber with substrates to be coated; pumping down the chamber to a process pressure suitable for the arc evaporation; and igniting and operating the arc such that material is evaporated from the first target and is then deposited on the substrates to be coated, optionally after reaction with a reactive gas admitted into the coating chamber. The first target includes at least one matrix component and one doping component such that the doping component has a melting point at least 500° C. lower than the matrix component, and a melted drop of the doping component on a solid surface of the matrix component assumes a contact angle of a least 90°.Type: GrantFiled: November 28, 2013Date of Patent: February 13, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jurgen Ramm, Beno Widrig, Matthias Lukas Sobiech, Doris Fopp-Spori
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Patent number: 9873850Abstract: A coated body includes a body (1) with a body surface (3) and a coating system (20) deposited on at least a portion of the body surface (3). The coating system (20) includes at least one hard friction reducing coating deposited as an outermost layer (9) which exhibits droplets (10) at its surface. The outermost layer (9) includes molybdenum copper nitride and/or molybdenum nitride and copper nitride, and at least some of the droplets (10) consist mainly of copper. Preferably most of the largest droplets (10) consist mainly of copper.Type: GrantFiled: July 25, 2013Date of Patent: January 23, 2018Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jurgen Ramm, Matthias Lukas Sobiech, Florian Seibert, Beno Widrig
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Publication number: 20180002805Abstract: A macroparticle filter device for cathodic arc evaporation, to be placed between at least one arc evaporation source and at least one substrate exhibiting at least a surface to be coated with material evaporated from a cathode of the arc evaporation source in a vacuum coating chamber. The macroparticle filter device includes one or more filter components that can prevent macroparticles emitted by the cathode during cathodic arc evaporation to arrive the substrate surface to be coated. The at least one component is provided as one or more flexible sheets that block the lineal way of the macroparticles from the cathode to the substrate surface to be coated. Further a method for utilizing the macroparticle filter device is presented.Type: ApplicationFiled: June 21, 2017Publication date: January 4, 2018Inventors: Juergen Ramm, Beno Widrig, Richard Rachbauer
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Patent number: 9845527Abstract: The invention relates to a method for coating work pieces in a vacuum treatment system having a first electrode embodied as a target, which is part of an arc vaporization source. Using the first electrode, an arc is operated with an arc current and vaporizes material. A bias voltage is applied to a bias electrode, which includes a second electrode that is embodied as a work piece holder, together with the work pieces. Metal ion bombardment is carried out either to pretreat the work pieces or in at least one transition from one layer to an adjacent layer of a multilayer system, so that neither a significant material removal nor a significant material buildup occurs, but instead, introduces metal ions into a substrate surface or into a layer of a multilayer system.Type: GrantFiled: November 8, 2013Date of Patent: December 19, 2017Assignee: Oerlikon Surface Solutions AG, PfäffikonInventors: Helmut Rudigier, Jürgen Ramm, Beno Widrig, Troy Vom Braucke
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Patent number: 9822322Abstract: The invention relates to a coating comprising at least one molybdenum-containing layer having molybdenum oxide, said molybdenum being essentially molybdenum monoxide. The invention further relates to a PVD process for producing the disclosed coating, in which the layer comprising the molybdenum monoxide is produced using arc evaporation. The invention also relates to a component that has said coating.Type: GrantFiled: October 6, 2011Date of Patent: November 21, 2017Assignee: OERLIKON SURFACE SOLUTIONS AG, PFAFFIKONInventors: Jurgen Ramm, Beno Widrig, Kerstin Glantz, Florian Seibert
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Publication number: 20170211174Abstract: A tribological system with a substantially improved tribological behaviour, which includes a body with a first contact face, which is coated at least partially with a first coating, a counter body with a second contact face, which is coated at least partially with a second coating and a lubricant as an interbedding. The first and second coating each include a layer as an outermost layer, wherein the composition of the outermost layer of the first coating and the composition of the outermost layer of the second coating are selected as such, that both outermost layers are smeared on steel surfaces when they are exposed to a tribological contact with steel, and both outermost layers are material-related layers, so that the element composition of the fist outermost layer complies to the element composition of the second outermost layer at least to 60 atom percent.Type: ApplicationFiled: April 9, 2015Publication date: July 27, 2017Inventors: Juergen Ramm, Florian Seibert, Beno Widrig
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Patent number: 9702036Abstract: A PVD layer system for the coating of workpieces encompasses at least one mixed-crystal layer of a multi-oxide having the following composition: (Me11-xMe2x)2O3, where Me1 and Me2 each represent at least one of the elements Al, Cr, Fe, Li, Mg, Mn, Nb, Ti, Sb or V. The elements of Me1 and Me2 differ from one another. The crystal lattice of the mixed-crystal layer in the PVD layer system has a corundum structure which in an x-ray diffractometrically analyzed spectrum of the mixed-crystal layer is characterized by at least three of the lines associated with the corundum structure. Also disclosed is a vacuum coating method for producing a mixed-crystal layer of a multi-oxide, as well as correspondingly coated tools and components.Type: GrantFiled: April 6, 2011Date of Patent: July 11, 2017Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKONInventors: Jurgen Ramm, Beno Widrig, Michael Ante, Christian Wohlrab
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Patent number: 9611538Abstract: The invention relates to a method for producing oxidic layers by means of PVD (physical vapor deposition), in particular by means of cathodic arc vaporization, wherein a powder-metallurgical target is vaporized and the powder-metallic target is formed of at least two metallic or semi-metallic components, the composition of the metallic or semi-metallic components of the target being chosen in such a manner that during heating in the transition from the room temperature into the liquid phase no phase boundary of purely solid phases, based on the phase diagram of a molten mixture of the at least two metallic or semi-metallic components, is crossed.Type: GrantFiled: April 24, 2009Date of Patent: April 4, 2017Assignee: OERLIKON SURFACE SOLUTIONS AG, PFAFFIKONInventors: Jürgen Ramm, Beno Widrig
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Patent number: 9581104Abstract: A steel piston for an internal combustion engine may include a piston crown and a protective layer disposed on the piston crown. The protective layer may include an adhesion layer of Cr or CrN, which is present on a surface of the piston crown. The protective layer may include a functional layer, which is present on the adhesion layer. The functional layer may have at least one of (i) at least one layer (A) of CrN and (ii) at least one layer (B) of CrOn in the form of [(A)/(B)]a, and a may represent 1 to 100.Type: GrantFiled: October 16, 2014Date of Patent: February 28, 2017Assignees: Mahle International GmbH, Oerlikon Surface Solutions AG, PfäffikonInventors: Monika Lehnert, Reinhard Rose, Juergen Ramm, Beno Widrig
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Publication number: 20160273093Abstract: A method for producing an oxidation barrier layer on a workpiece substrate in which the oxidation barrier layer is produced by means of physical deposition from the gas phase (PVD) and is an oxide that is materially related to the uncoated surface of the workpiece.Type: ApplicationFiled: October 31, 2014Publication date: September 22, 2016Inventors: Jürgen Ramm, Florian Seibert, Beno Widrig, Doris Fopp-Spori
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Patent number: 9416438Abstract: The invention pertains to a method for the production of coatings by physical vapor deposition (PVD), wherein a binary target or a target with more than two constituents is evaporated in a curvilinear cathodic arc discharge, causing the ions with different masses (elements) to be splitted and the ion splitting results in variations for the ratio of the different masses (elements) at different positions in the deposition chamber.Type: GrantFiled: July 16, 2010Date of Patent: August 16, 2016Assignee: OERLIKON SURFACE SOLUTIONS AG, PFAFFIKONInventors: Jürgen Ramm, Beno Wídrìg, Helmut Rudígìer
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Patent number: 9376747Abstract: When treating workpiece or substrate surfaces with the help of a vacuum plasma discharge between an anode and an cathode and whereby due to such treatment a solid is formed and deposited on the anode surface, which solid has a higher specific DC impedance than the specific DC impedance of the anode material, at least parts of the anode surface are shielded from such deposition by establishing thereat a shielding plasma.Type: GrantFiled: November 1, 2007Date of Patent: June 28, 2016Assignee: OERLIKON SURFACE SOLUTIONS AG, PFAFFIKONInventors: Juergen Ramm, Beno Widrig, Denis Kurapov