Patents by Inventor Jurgen Gerhards
Jurgen Gerhards 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: 20230357508Abstract: A siloxane compound is useful as a bonding agent in an adhesive formulation or sealant formation. A kit-of-parts can contain the siloxane compound. A corresponding method can be used to synthesize the siloxane agent.Type: ApplicationFiled: August 24, 2021Publication date: November 9, 2023Applicant: Evonik Operations GmbHInventors: Jürgen Gerhard FRITZ, Ingo Kiefer, Kerstin Weissenbach, Daniela Huber, Svenja Morast, Lars Matt
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Patent number: 10677453Abstract: A gas turbine with a sequential combustor arrangement as disclosed includes a first combustor with a first burner for admitting a first fuel into a combustor inlet gas during operation and a first combustion chamber for burning the first fuel, a dilution gas admixer for admixing a dilution gas to the first combustor combustion products leaving the first combustion chamber, a second burner for admixing a second fuel and a second combustion chamber. To assure a temperature profile after the dilution gas admixer and to increase the gas turbine's power and efficiency a vane and/or blade of the turbine has a closed loop cooling. The outlet of the closed loop cooling is connected to the dilution gas admixer for admixing the heated cooling gas leaving the vane and/or blade into the first combustor combustion products.Type: GrantFiled: August 11, 2016Date of Patent: June 9, 2020Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Wilhelm Reiter, Jürgen Gerhard Hoffmann
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Patent number: 10260705Abstract: An LED module combines a heat sink portion and an LED arrangement. The heat sink portion is a first part of a multiple part heat sink having at least this first part and a second part. The heat sink portion is not sufficient alone to provide the required cooling for the operation of the LED arrangement so it can be small and low cost. A user can simply replace the LED module as a single unit, without the significant waste and cost of disposing of the full heat sink.Type: GrantFiled: March 31, 2016Date of Patent: April 16, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jürgen Gerhard Mertens, Astrid Marchewka, Ralph Hubert Peters, Benno Spinger, Georg Friedrich Alfons Henninger
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Publication number: 20170167506Abstract: A method for repairing a blade connection of a generator rotor is disclosed. The generator rotor includes an internally threaded hole formed in the generator rotor and an externally threaded blade root. The method includes the steps of removing the blade from the generator rotor, removing material of a first section of the root extending from an end of the root closest to the airfoil, and screwing the blade back into the threaded hole. Additionally, a reworked blade and a reworked blade generator rotor connection is disclosed.Type: ApplicationFiled: December 5, 2016Publication date: June 15, 2017Inventors: Michele PESCE, Jurgen Gerhard HOFFMAN
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Publication number: 20170045228Abstract: A gas turbine with a sequential combustor arrangement as disclosed includes a first combustor with a first burner for admitting a first fuel into a combustor inlet gas during operation and a first combustion chamber for burning the first fuel, a dilution gas admixer for admixing a dilution gas to the first combustor combustion products leaving the first combustion chamber, a second burner for admixing a second fuel and a second combustion chamber. To assure a temperature profile after the dilution gas admixer and to increase the gas turbine's power and efficiency a vane and/or blade of the turbine has a closed loop cooling. The outlet of the closed loop cooling is connected to the dilution gas admixer for admixing the heated cooling gas leaving the vane and/or blade into the first combustor combustion products.Type: ApplicationFiled: August 11, 2016Publication date: February 16, 2017Applicant: ANSALDO ENERGIA SWITZERLAND AGInventors: Wilhelm REITER, Jürgen Gerhard HOFFMANN
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Publication number: 20150142399Abstract: In a computational environment including at least one processor, an example method of reducing the number of symbolic parameters in a model of a physical system includes receiving an initial model such as a system of differential algebraic equations (DAEs), eliminating isolated symbolic parameters (if any) from the initial model, extracting parameter sub-expressions from the DAEs, establishing minimal disconnected clusters of parameter sub-expressions, and for each cluster, attempting to generate a reduced cluster having a reduced number of symbolic parameters using one or more algorithms. If more than one approach is successful, that which is most successful in reducing the number of symbolic parameters is selected. A revised model is created having fewer symbolic parameters than the initial model and based on simulation results obtained from the revised model, a prototype of a physical system is manufactured and/or changes are made to an existing physical system.Type: ApplicationFiled: December 15, 2014Publication date: May 21, 2015Inventors: Erik Jelle Postma, Jürgen Gerhard, Elena Shmoylova, Austin Duncan Roche
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Patent number: 8483999Abstract: An example method of simplifying a system expressed as differential algebraic equations includes transforming the differential algebraic equations into Hessenberg form, the Hessenberg form including algebraic equations and differential equations, using the algebraic equations to express a constraint manifold, and using a combination of differentiation and projections onto the normal and tangential spaces of the constraint manifold to simplify the differential equations.Type: GrantFiled: January 11, 2011Date of Patent: July 9, 2013Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Elena Shmoylova, Jurgen Gerhard, Erik Jelle Postma, Austin Duncan Roche
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Publication number: 20120179437Abstract: An example method of simplifying a system expressed as differential algebraic equations includes transforming the differential algebraic equations into Hessenberg form, the Hessenberg form including algebraic equations and differential equations, using the algebraic equations to express a constraint manifold, and using a combination of differentiation and projections onto the normal and tangential spaces of the constraint manifold to simplify the differential equations.Type: ApplicationFiled: January 11, 2011Publication date: July 12, 2012Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Elena Shmoylova, Jürgen Gerhard, Erik Jelle Postma, Austin Duncan Roche
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Publication number: 20120123746Abstract: In a computational environment including at least one processor, an example method of reducing the number of parameters in a model of a physical system includes receiving an initial model such as a system of differential algebraic equations (DAEs), eliminating isolated parameters (if any) from the initial model, extracting parameter sub-expressions from the DAEs, establishing minimal disconnected clusters of parameter subexpressions, and for each cluster, attempting to generate a reduced cluster having a reduced number of parameters using one or more algorithms. If more than one approach is successful, that which is most successful in reducing the number of parameters is selected. A revised model is created having fewer parameters than the initial model.Type: ApplicationFiled: November 17, 2010Publication date: May 17, 2012Applicant: Toyota Motor Engineering & Manufacturing North America Inc.Inventors: Erik Jelle Postma, Jürgen Gerhard, Elena Shmoylova, Austin Duncan Roche
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Patent number: 7562532Abstract: A gas turbine group comprises a device, arranged in a suction-intake duct, for cooling a suction-intake airflow. The device is, for example, a device for injecting a liquid mass flow. The cooling device is activated automatically when a first limit temperature of the ambient air is overshot and is deactivated automatically when a second limit temperature is undershot. Stability of the automatic algorithm can be improved in that the second limit temperature can lie by a specific amount below the first limit temperature. In one embodiment, the limit temperatures are predetermined as a function of the position of an adjustable initial guide blade cascade.Type: GrantFiled: January 19, 2007Date of Patent: July 21, 2009Assignee: Alstom Technology LtdInventors: Carlos Enrique Diaz, Jürgen Gerhard Hoffmann, Andreas Ullrich
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Patent number: 6352717Abstract: The present invention provides a process for encapsulating a shear sensitive fill mass which contains a pharmaceutical active agent or nutrient, characterized in that said fill mass is heated and subsequently cooled, prior to the encapsulation. The invention also provides capsules comprising shear sensitive fill material obtained by the said process which have a high and constant dissolution rate.Type: GrantFiled: November 16, 1999Date of Patent: March 5, 2002Assignee: Hoffman-La Roche Inc.Inventors: Rainer Alex, Jürgen Gerhards, Ingeborg Kraemer-Pittrof, Richard Oeschger, Thomas Rades
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Publication number: 20020006417Abstract: The present invention provides a process for encapsulating a shear sensitive fill mass which contains a pharmaceutical active agent or nutrient, characterised in that said fill mass is heated and subsequently cooled, prior to the encapsulation. The invention also provides capsules comprising shear sensitive fill material obtained by the said process which have a high and constant dissolution rate.Type: ApplicationFiled: November 16, 1999Publication date: January 17, 2002Applicant: HOFFMANN-LA ROCHE INC.Inventors: RAINER ALEX, JURGEN GERHARDS, INGEBORG KRAEMER-PITTROF, RICHARD OESCHGER, THOMAS RADES
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Patent number: 5120530Abstract: An antimycotically-active nail varnish, which contains an antimycotically-active substance selected from 4-[3-[p-(.alpha.,.alpha.-dimethyl-benzyl)-phenyl]-2-methyl-propyl]-2,6-dim ethylmorpholine, 4-[-[p-(1,1,-dimethylpropyl)-phenyl]-2-methyl-propyl]-2,6-dimethyl-morphol ine and salts thereof and a water-insoluble film former which a copolymerizate of acrylic acid esters and methacrylic acid esters having a low content of quaternary ammonium groups, is described.Type: GrantFiled: February 22, 1990Date of Patent: June 9, 1992Assignee: Hoffmann-La Roche Inc.Inventors: Alberto Ferro, Jurgen Gerhards, Roland Werner