Patents by Inventor Joachim Roesler
Joachim Roesler 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).
-
Patent number: 12005608Abstract: A method and apparatus for obtaining carbon fiber from carbon fiber waste (e.g., pre-preg and CFP waste). The method and apparatus use an oxygen free pyrolytic process to volatilize the epoxy resin or other matrix in which the fibers are held to liberate the fibers therefrom. The reactor has a counterflow such that the carbon fibers are moved in one direction and the off gasses are moved in the opposite direction. A combination of steam at the reactor outlet and vacuum pressure at the reactor inlet create the counter flow.Type: GrantFiled: November 6, 2020Date of Patent: June 11, 2024Assignee: Carbon Fiber Recycling, LLCInventors: Douglas D. Griffin, II, Joachim Roesler
-
Publication number: 20240011128Abstract: A nickel-base alloy composition includes nickel as the main constituent and the further constituents in percent by weight (% by weight): 0.04 to 0.10% carbon (C), 8 to 13% tantalum (Ta), 12 to 20% chromium (Cr), 3 to 25% cobalt (Co), less than 0.03% manganese (Mn), less than 0.06% silicon (Si), 0 to 6% molybdenum (Mo), less than 5.0% iron (Fe), 2 to 4% aluminum (Al), less than 0.01% magnesium (Mg), less than 0.02% vanadium (V), 0 to 6% tungsten (W), less than 1% titanium (Ti), less than 0.03% yttrium (Y), 0.005 to 0.015% boron (B), less than 0.003% sulfur (S), 0.005 to 0.04% zirconium (Zr) and less than 3% hafnium. Additionally provided are an additive manufacturing method, a method of additively manufacturing a component part from a powder of the alloy composition provided, a corresponding intermediate alloy, and a component part consisting of the nickel-base superalloy.Type: ApplicationFiled: September 22, 2023Publication date: January 11, 2024Inventors: Kai Dörries, Joachim Rösler, Christoph Haberland, Juri Burow, Bodo Gehrmann, Sebastian Piegert
-
Publication number: 20190040501Abstract: A Ni—Co alloy includes 30 to 65 wt % Ni, >0 to max. 10 wt % Fe, >12 to <35 wt % Co, 13 to 23 wt % Cr, 1 to 6 wt % Mo, 4 to 6 wt % Nb+Ta, >0 to <3 wt % Al, >0 to <2 wt % Ti, >0 to max. 0.1 wt % C, >0 to max. 0.03 wt % P, >0 to max. 0.01 wt % Mg, >0 to max. 0.02 wt % B, >0 to max. 0.1 wt % Zr, which fulfils the following requirements and criteria: a) 900° C.<?? solvus temperature<1030° C. with 3 at %<Al+Ti (at %)<5.6 at % and 11.5 at %<Co<35 at %; b) stable microstructure after 500 h of ageing annealing at 800° C. with a ratio Al/Ti>5 (on the basis of the contents in at %).Type: ApplicationFiled: October 1, 2018Publication date: February 7, 2019Applicant: VDM Metals International GmbHInventors: Budo GEHRMANN, Jutta KLOEWER, Tatiana FEDOROVA, Joachim ROESLER
-
Publication number: 20150354031Abstract: A Ni—Co alloy includes 30 to 65 wt % Ni, >0 to max. 10 wt % Fe, >12 to <35 wt % Co, 13 to 23 wt % Cr, 1 to 6 wt % Mo, 4 to 6 wt % Nb+Ta, >0 to <3 wt % Al, >0 to <2 wt % Ti, >0 to max. 0.1 wt % C, >0 to max. 0.03 wt % P, >0 to max. 0.01 wt % Mg, >0 to max. 0.02 wt % B, >0 to max. 0.1 wt % Zr, which fulfils the following requirements and criteria: a) 900° C.<?? solvus temperature<1030° C. with 3 at %<Al+Ti (at %)<5.6 at % and 11.5 at %<Co<35 at %; b) stable microstructure after 500 h of ageing annealing at 800° C. with a ratio Al/Ti>5 (on the basis of the contents in at %).Type: ApplicationFiled: February 13, 2014Publication date: December 10, 2015Applicant: VDM Metals GmbHInventors: Budo GEHRMANN, Jutta KLOEWER, Tatiana FEDOROVA, Joachim ROESLER
-
Patent number: 8555500Abstract: A method of producing or repairing single-crystalline turbine or engine components by the following steps: heating of braze filler metal to a temperature which is greater than or equal to the melting temperature of the braze filler metal; introducing the molten mass of the braze filler metal produced through the heating process into a crack formed in the turbine or engine component, or into the gap formed between two turbine or engine components, or into a damaged area of a turbine or engine component; and non-isothermal control or regulation of the temperature of the braze filler metal or turbine or engine component during an epitaxic solidification process of the braze filler metal.Type: GrantFiled: May 31, 2007Date of Patent: October 15, 2013Assignee: MTU Aero Engines GmbHInventors: Andreas Vossberg, Hans Joachim Rösler, Sebastian Piegert
-
Publication number: 20110044841Abstract: A method is provided for producing microscopically small components. The method can produce components with a size of less than 10 ?m. The method includes: (a) Production of a precipitation hardenable alloy comprising at least two phases, in which alloy of a first phase forms a matrix structure in which a second phase is embedded in the form of discrete particles of a size less than 10 ?m; (b) Dissolution of the matrix and separation of particles from the alloy; and (c) Mechanical deformation by forging respectively a separated particle with at least one striking tool to form the desired element.Type: ApplicationFiled: October 28, 2006Publication date: February 24, 2011Applicant: TECHNISCHE UNIVERSITAT BRAUNSCHWEIG CAROLO- wILHELMINAInventors: Joachim Roesler, Debashis Mukherji
-
Publication number: 20070175546Abstract: A solder alloy and a multi-component soldering system, to the use of the same, and to a method for repairing gas turbine components are described herein. The solder alloy based on nickel includes the following elements: nickel (Ni), chromium (Cr), cobalt (Co), molybdenum (Mo), aluminum (Al), tantalum (Ta), niobium (Nb), yttrium (Y), hafnium (Hf), palladium (Pd), boron (B) and silicon (Si). The multi-component soldering system includes the solder alloy and additionally at least one additive material. The additive materials include the following elements: nickel (Ni), chromium (Cr), cobalt (Co), molybdenum (Mo), aluminum (Al), tantalum (Ta), titanium (Ti), rhenium (Re), iron (Fe), niobium (Nb), yttrium (Y), hafnium (Hf), palladium (Pd), carbon (C), zirconium (Zr), boron (B) and silicon (Si).Type: ApplicationFiled: November 13, 2004Publication date: August 2, 2007Applicant: MTU Aero Engines GMBHInventors: Barbara Hoppe, Debashis Mukherji, Joachim Roesler, Andreas Vossberg
-
Patent number: 7074284Abstract: In a heat treatment process for a single-crystal or directionally solidified material body comprising a nickel-based superalloy, the material body is solution-annealed and then at a first temperature ?? particles of greater than 1 ?m are precipitated in a proportion by volume with Vtot?V1 of less than 50%, where Vtot is the total amount of ?? particles after complete heat treatment and V1 is the proportion of the ?? particles which is greater than 1 ?m, and at least at a second temperature ‘?’ particles of less than 1 ?m are precipitated. The ?? particles are preferably precipitated in a size of 2 pin or more with a proportion by volume of 0.25<(Vtot?V1)/(100?V1)<0.55 at the first temperature. The proportion by volume Vtot of the ?? particles will be at least 50%.Type: GrantFiled: November 5, 2002Date of Patent: July 11, 2006Assignee: ALSTOM Technology LTDInventors: Mohamed Nazmy, Joachim Roesler, Alexander Schnell, Christoph Toennes
-
Patent number: 7063740Abstract: It is disclosed a method for strengthen the grain boundaries of an article (1) made from a Ni based superalloy while the article (1) is in the solid state and containing at least one grain boundary. A surface diffusion process is applied to the article (1) to enrich the at least one grain boundary with grain boundary strengthening elements of one or a combination of boron, hafnium, zirconium without forming brittle precipitates like borides or carbides.Type: GrantFiled: February 13, 2004Date of Patent: June 20, 2006Assignee: ALSTOM Technology LtdInventors: Steffen Müller, Joachim Rösler
-
Publication number: 20050061228Abstract: It is disclosed a method for strengthen the grain boundaries of an article (1) made from a Ni based superalloy while the article (1) is in the solid state and containing at least one grain boundary. A surface diffusion process is applied to the article (1) to enrich the at least one grain boundary with grain boundary strengthening elements of one or a combination of boron, hafnium, zirconium without forming brittle precipitates like borides or carbides.Type: ApplicationFiled: February 13, 2004Publication date: March 24, 2005Applicant: ALSTOM Technology Ltd.Inventors: Steffen Muller, Joachim Roesler
-
Publication number: 20040050460Abstract: In a heat treatment process for a single-crystal or directionally solidified material body comprising a nickel-based superalloy, the material body is solution-annealed and then at a first temperature &ggr;′ particles of greater than 1 &mgr;m are precipitated in a proportion by volume with Vtot−V1 of less than 50%, where Vtot is the total amount of &ggr;′ particles after complete heat treatment and V1 is the proportion of the &ggr;′ particles which is greater than 1 &mgr;m, and at least at a second temperature ‘&ggr;’ particles of less than 1 &mgr;m are precipitated. The &ggr;′ particles are preferably precipitated in a size of 2 pin or more with a proportion by volume of 0.25<(Vtot−V1)/(100−V1)<0.55 at the first temperature. The proportion by volume Vtot of the &ggr;′ particles will be at least 50%.Type: ApplicationFiled: July 11, 2003Publication date: March 18, 2004Inventors: Mohamed Nazmy, Joachim Roesler, Alexander Schnell, Christoph Toennes
-
Patent number: 6412541Abstract: A thermally highly loaded casting is produced. The casting mold is produced from a slurry using a wax model and a polymer foam which is fixed to the wax model or has been introduced into a cavity. In this way, during the casting process the liquid superalloy also penetrates into the open-cell structure of the casting mold, so that an integral cooling structure is formed during the solidification of the casting. A single-crystal or directionally solidified casting is advantageously produced. It is also conceivable to vary the cell size of the polymer foam, to produce a cooling structure and a base material separately, and to coat the cooling structure with a ceramic protective layer (thermal barrier coating).Type: GrantFiled: April 18, 2001Date of Patent: July 2, 2002Assignee: Alstom Power N.V.Inventors: Hans-Joachim Roesler, Alexander Beeck, Peter Ernst, Reinhard Fried
-
Publication number: 20010042607Abstract: To produce a thermally highly loaded casting (1, 14, 16, 17) of a thermal turbomachine which is produced using a known casting process, the casting mold is produced from a slurry using a wax model and a polymer foam which is fixed to the wax model or has been introduced into a cavity. In this way, during the casting process the liquid superalloy also penetrates into the open-cell structure of the casting mold, so that an integral cooling structure (7) is formed during the solidification of the casting (1, 14, 16, 17). A single-crystal or directionally solidified casting (1, 14, 16, 17) is advantageously produced. It is also conceivable to vary the cell size of the polymer foam, to produce cooling structure (7) and base material separately and to coat the cooling structure (7) with a ceramic protective layer (thermal barrier coating) (11).Type: ApplicationFiled: April 18, 2001Publication date: November 22, 2001Inventors: Hans-Joachim Roesler, Alexander Beeck, Peter Ernst, Reinhard Fried