Patents by Inventor Juergen Gebhardt
Juergen Gebhardt 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: 11920965Abstract: A method for determining a temperature of a fluid flowing through a pipe section includes: determining a temperature of the pipe section; obtaining a reference temperature at a distance from a surface of the pipe section; determining a heat transfer behaviour, in particular a thermal resistance, of a boundary layer of the fluid on an inner wall of the pipe section based on at least one material property and/or at least one value of a state variable of the fluid; and determining the temperature of the fluid based on the heat transfer behaviour of the boundary layer, a heat transfer behavior, in particular a thermal resistance, of the pipe section, the temperature of the pipe section, and the reference temperature.Type: GrantFiled: September 7, 2020Date of Patent: March 5, 2024Assignee: ABB Schweiz AGInventors: Joerg Gebhardt, Guruprasad Sosale, Andreas Decker, Wilhelm Daake, Juergen Horstkotte, Peter Ude, Paul Szasz, Ulf Ahrend
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Publication number: 20220018390Abstract: A steering system for a motor vehicle has a worm gear set, comprising a worm wheel and a worm shaft, wherein the worm shaft is rotatably mounted at least one bearing point in a housing of the worm gear set by means of a pivot bearing. The pivot bearing has an increased load capacity compared to a pivot bearing with a single-row standard deep groove ball bearing. A pivot bearing for a steering system has an inner ring and an outer ring, wherein a plurality of rolling elements is arranged between the inner ring and the outer ring. One of the bearing rings is designed as a full ring and the other bearing ring as a split bearing ring, the split bearing ring having a first ring element and a second ring element.Type: ApplicationFiled: October 18, 2019Publication date: January 20, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Jürgen Gebhardt, Seryas Mohammad
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Patent number: 10428292Abstract: Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.Type: GrantFiled: August 9, 2017Date of Patent: October 1, 2019Assignee: Evonik Oil Additives GmbHInventors: Stefan Maier, Jürgen Gebhardt, Katrin Schöller, Frank-Olaf Mähling
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Publication number: 20190203147Abstract: Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.Type: ApplicationFiled: August 9, 2017Publication date: July 4, 2019Applicant: Evonik Oil Additives GmbHInventors: Stefan MAIER, Jürgen GEBHARDT, Katrin SCHÖLLER, Frank-Olaf MÄHLING
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Patent number: 9617495Abstract: The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.Type: GrantFiled: February 24, 2011Date of Patent: April 11, 2017Assignee: Evonik Oil Additives GmbHInventors: Reza Ghahary, Juergen Gebhardt, Thilo Krapfl, Michael Mueller, Thomas Schimmel, Roland Schweder, Torsten Stoehr, Christoph Wincierz
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Publication number: 20150322322Abstract: The present invention relates to the use of a liquid composition as heat transfer fluid, characterized in that the liquid composition comprises polymers derived from at least an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers. Preferably, the liquid composition is used as a heat transfer fluid for electrical equipment.Type: ApplicationFiled: December 4, 2013Publication date: November 12, 2015Applicant: EVONIK OIL ADDITIVES GMBHInventors: Ronny SONDJAJA,, Reza GHAHARY, Torsten Stoehr, Juergen GEBHARDT, Ines MUELLER, Aidan S ROSE
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Publication number: 20130229016Abstract: The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.Type: ApplicationFiled: February 24, 2011Publication date: September 5, 2013Applicant: Evonik RohMax Additives GmbHInventors: Reza Ghahary, Juergen Gebhardt, Thilo Krapfl, Micahel Mueller, Thomas Schimmel, Roland Schweder, Torsten Stoehr, Christoph Wincierz
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Patent number: 6716541Abstract: The material for a metal strip for manufacturing electrical contact component parts has, expressed in percent by weight, the following composition: nickel (Ni) 0.5-3.5% silicon (Si) 0.08-1.0% tin (Sn) 0.1-1.0% zinc (Zn) 0.1-1.0% zirconium (Zr) 0.005-0.2% silver (Ag) 0.02- 0.5% The remainder is copper and includes impurities caused by smelting.Type: GrantFiled: August 19, 2002Date of Patent: April 6, 2004Assignee: Stolberger Metallwerke GmbH & Co. KGInventors: Udo Adler, Jürgen Gebhardt, Heinz Klenen, Robert Leffers, Thomas Helmenkamp
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Patent number: 6641930Abstract: An electrically conductive metal tape for manufacturing electrical contact components and a plug connector made of it. The metal tape has a base material made of copper or a copper alloy having a metallic coating, applied by molten technology, made of a tin-silver alloy containing a silver proportion between 1% and 3.8% by weight. The silver content in the coating preferably lies between 1.2% by weight and 2.5% by weight. Especially positive properties with respect to the adhesiveness between base material and metal coating are achieved by the silver proportion in the coating. At the same time, the temperature stability and sliding properties are improved. Furthermore, a stable contact resistance is ensured.Type: GrantFiled: May 17, 2001Date of Patent: November 4, 2003Assignee: Stolberger Metallwerke GmbH & Co KGInventors: Klaus Schleicher, Albert Rumbach, Jürgen Gebhardt, Udo Adler
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Patent number: 6638643Abstract: An electrically conductive metal tape for manufacturing electrical contact components, in particular plug connectors, having a base material made of a copper alloy having nickel proportions between 1.0 and 4.0% by weight, silicon proportions of 0.08 to 1.0% by weight, tin proportions between 0.02 and 1.0% by weight, zinc proportions of 0.01 to 2.0% by weight, zirconium proportions of 0.005 to 0.2% by weight and silver proportions between 0.02 to 0.5% by weight, the coating consisting of a tin-silver alloy having a silver proportion between 1.0 and 3.8% by weight. Particularly positive properties are displayed by a metal tape whose base material is made of a copper alloy having proportions of nickel between 1.4 and 1.7% by weight, silicon from 0.2 to 0.35% by weight, tin between 0.02 and 0.3% by weight, as well as zinc from 0.01 to 0.3% by weight.Type: GrantFiled: May 17, 2001Date of Patent: October 28, 2003Assignee: Stolberger Metallwerke GmbH & Co KGInventors: Klaus Schleicher, Robert Leffers, Thomas Helmenkamp, Jürgen Gebhardt, Udo Adler
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Patent number: 5085701Abstract: A polymer-modified bitumen (PmB) having improved elastic restoration prepared by blending from 0.5-20 wt. % of a polymer material in bitumen, said polymer additive, which may be comprised of various polymers, being comprised of from 20-100 wt. % of a polyalkyl (meth)acrylate comprising monomer units as follows:50-100 wt. % of alkyl (meth)acrylates containing alkyl groups of 8-26 C atoms;0-30 wt. % of alkyl (meth)acrylates containing alkyl groups of 1-7 C atoms; and0-20 wt. % of other monomers, optionally containing functional groups;and said polymer having a molecular weight Mw>1,000,000, corresponding to a viscosity number .eta..sub.sp /c>120 ml/g as measured in chloroform at 20.degree. C.Type: GrantFiled: June 1, 1990Date of Patent: February 4, 1992Assignee: Rohm GmbH Chemische FabrikInventors: Michael Muller, Horst Pennewiss, Juergen Gebhardt
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Patent number: 4906682Abstract: Concentrated emulsions, adaptable to use as pour point improvers, of (1) copolymers of ethylene and a vinyl ester of a C.sub.1 -C.sub.24 -carboxylic acid and/or (2) polyalkyl(meth)acrylic acid ester polymers in a liquid carrier medium which does not dissolve said polymers, said emulsions additionally containing, as an emulsifier, a graft- or block-copolymer of the formulaA--Y,wherein A is a segment of a copolymer of ethylene and a vinyl ester of a C.sub.1 -C.sub.24 -carboxylic acid (corresponding to polymer P1) or of a polymer of esters of acrylic acid and/or methacrylic acid with a C.sub.1 -C.sub.20 -alkanol, wherein Y is at least one segment obtained by the polymerization of vinyl monomers which are predominantly esters of acrylic acid or methacrylic acid with a C.sub.1 -C.sub.40 -alkanol, and wherein the carrier medium is capable of dissolving segments Y; oils containing such emulsions as pour point improvers.Type: GrantFiled: September 7, 1988Date of Patent: March 6, 1990Assignee: Rohm GmbHInventors: Michael Mueller, Horst Pennewiss, Juergen Gebhardt