Patents by Inventor Markus Niedermeier
Markus Niedermeier 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: 9333623Abstract: A method for removing a layer made of a first material from a surface of a body made of a second material is disclosed. The body is subjected to a pressurized jet containing a blasting medium composed of particles, where the pressurized jet at least intermittently has an Almen intensity of at most 0.35 Almen A, preferably at most 0.3 Almen A and particularly preferably at most 0.25 Almen A.Type: GrantFiled: August 6, 2011Date of Patent: May 10, 2016Assignee: MTU Aero Engines GmbHInventors: Horst Pillhoefer, Johann Oettl, Markus Niedermeier, Thomas Cosack, Dirk Ruhlig
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Publication number: 20130139852Abstract: A method for removing a layer made of a first material from a surface of a body made of a second material is disclosed. The body is subjected to a pressurized jet containing a blasting medium composed of particles, where the pressurized jet at least intermittently has an Almen intensity of at most 0.35 Almen A, preferably at most 0.3 Almen A and particularly preferably at most 0.25 Almen A.Type: ApplicationFiled: August 6, 2011Publication date: June 6, 2013Applicant: MTU Aero Engines GmbHInventors: Horst Pillhoefer, Johann Oettl, Markus Niedermeier, Thomas Cosack, Dirk Ruhlig
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Patent number: 7968491Abstract: The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2 with a content of Na of less than 0.Type: GrantFiled: November 28, 2005Date of Patent: June 28, 2011Assignee: Sud-Chemie AGInventors: Christian Guckel, Markus Niedermeier, Marvin Estenfelder
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Publication number: 20110058952Abstract: A method for producing a high-temperature protective layer containing metal on a metallic high-temperature material is disclosed. The metal is deposited on the high-temperature material via the gaseous phase to form the high-temperature protective layer. The high-temperature material is held at a diffusion temperature for a specific length of time so that at least a portion of the deposited metal is diffused into the high temperature material to form a diffusion zone and where the high-temperature material is not in contact with solids or liquids in the region of the surface to be coated, but merely has a solid/gas interface. Also disclosed is a component made of a high-temperature material with a hot-gas anti-corrosive layer containing chromium. There is a coating layer containing chromium applied to the surface of the high-temperature material, a diffusion layer in the high-temperature material, and a build-up zone between the coating layer and the diffusion layer.Type: ApplicationFiled: September 7, 2010Publication date: March 10, 2011Applicant: MTU Aero Engines GmbHInventors: Horst Pillhoefer, Markus Niedermeier, Siegfried Seuss
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Patent number: 7718561Abstract: The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the rangType: GrantFiled: May 22, 2005Date of Patent: May 18, 2010Assignee: Süd-Chemie AGInventors: Christian Gückel, Markus Niedermeier, Marvin Estenfelder
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Publication number: 20100098971Abstract: A coating, in particular for gas turbine components produced of a superalloy, is disclosed. The coating has an outer layer and an inner layer. The outer layer constitutes 10% to 60% of the overall coating and is substantially made of a ?-NiAl phase having an Al proportion between 23 and 35 percent by weight. The inner layer constitutes 90% to 40% of the overall coating and is substantially made of a ?-NiAl phase having an Al proportion of a maximum of 15 percent by weight.Type: ApplicationFiled: February 14, 2008Publication date: April 22, 2010Inventors: Horst Pillhoefer, Heinrich Walter, Markus Niedermeier, Joern Kohlscheen
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Publication number: 20090306409Abstract: The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2 with a content of Na of less than 0.Type: ApplicationFiled: November 28, 2005Publication date: December 10, 2009Applicant: SUD-CHEMIE AGInventors: Christian Gückel, Markus Niedermeier, Marvin Estenfelder
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Patent number: 7422769Abstract: A refractory, oxidation-resistant, and corrosion-resistant protective coating for application to a substrate, in particular for application to parts of turbines or aircraft propulsion engines, is described, including a spray coating made of a thermally sprayed, primarily metallic material, the coating being at least partially subjected to a thermochemical aluminum (Cr, Si) deposition process having a specifically high aluminum deposition activity after the application of the protective coating to the substrate, in such a way that the protective coating has alloy gradients of Al (Cr, Si) which increase from the substrate surface to the coating surface and isolated globulitic metal oxide particles. Furthermore, a method for manufacturing this protective coating and its use are described.Type: GrantFiled: July 14, 2005Date of Patent: September 9, 2008Assignee: Mtu Aero Engines GmbHInventors: Stefan Kassner, Markus Niedermeier, Horst Pillhoefer
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Publication number: 20080064593Abstract: The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range bType: ApplicationFiled: May 22, 2005Publication date: March 13, 2008Applicant: SÜD-CHEMIE AGInventors: Christian Guckel, Markus Niedermeier, Marvin Estenfelder
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Patent number: 7294361Abstract: A process for gas diffusion coating of metallic components; in which a component surface which is to be coated is brought into contact with a metal halide as coating gas, to form a diffusion layer with a defined layer thickness and a defined coating metal content in % by weight in the component surface, working on the basis of a nominal concentration of the metal halide at the component surface which, at a defined coating temperature, leads to a defined coating time, wherein a first concentration, which is higher than the nominal concentration, for the metal halide is established for a first time, and at least one second concentration, which is at or below the nominal concentration, is established at the component surface for at least one second time, the first and the at least one second time being selected in such a way that their sum is shorter than the coating time with the nominal concentration. Also disclosed is a device for the process.Type: GrantFiled: January 9, 2002Date of Patent: November 13, 2007Assignee: MTU Aero Engines GmbHInventors: Thomas Dautl, Markus Niedermeier, Horst Pillhoefer
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Publication number: 20060292390Abstract: A refractory, oxidation-resistant, and corrosion-resistant protective coating for application to a substrate, in particular for application to parts of turbines or aircraft propulsion engines, is described, including a spray coating made of a thermally sprayed, primarily metallic material, the coating being at least partially subjected to a thermochemical aluminum (Cr, Si) deposition process having a specifically high aluminum deposition activity after the application of the protective coating to the substrate, in such a way that the protective coating has alloy gradients of Al (Cr, Si) which increase from the substrate surface to the coating surface and isolated globulitic metal oxide particles. Furthermore, a method for manufacturing this protective coating and its use are described.Type: ApplicationFiled: July 14, 2005Publication date: December 28, 2006Applicant: MTU Aero Engines GmbHInventors: Stefan Kassner, Markus Niedermeier, Horst Pillhoefer
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Publication number: 20040112287Abstract: A process and a device for gas diffusion coating of metallic components (3), in which a component surface (4) which is to be coated is brought into contact with a metal halide as coating gas, to form a diffusion layer with a defined layer thickness and a defined coating metal content in % by weight in the component surface, working on the basis of a nominal concentration of the metal halide at the component surface which, at a defined coating temperature, leads to a defined coating time, wherein a first concentration, which is higher than the nominal concentration, for the metal halide is established for a first time, and at least one second concentration, which is at or below the nominal concentration, is established at the component surface (4) for at least one second time, the first and the at least one second time being selected in such a way that their sum is shorter than the coating time with the nominal concentration.Type: ApplicationFiled: December 19, 2003Publication date: June 17, 2004Inventors: Thomas Dautl, Markus Niedermeier, Horst Pillhoefer