Patents by Inventor Matthias Geisler
Matthias Geisler 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: 20240158224Abstract: A microfabricated structure includes a perforated stator; a first isolation layer on a first surface of the perforated stator; a second isolation layer on a second surface of the perforated stator; a first membrane on the first isolation layer; a second membrane on the second isolation layer; and a pillar coupled between the first membrane and the second membrane, wherein the first isolation layer includes a first tapered edge portion having a common surface with the first membrane, wherein the second isolation layer includes a first tapered edge portion having a common surface with the second membrane, and wherein an endpoint of the first tapered edge portion of the first isolation layer is laterally offset with respect to an endpoint of the first tapered edge portion of the second isolation layer.Type: ApplicationFiled: December 14, 2023Publication date: May 16, 2024Inventors: Wolfgang Klein, Evangelos Angelopoulos, Stefan Barzen, Marc Fueldner, Stefan Geißler, Matthias Friedrich Herrmann, Ulrich Krumbein, Konstantin Tkachuk, Giordano Tosolini, Juergen Wagner
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Patent number: 11958981Abstract: Hydrophobized granular material comprising from 30 to 95% by weight of a pyrogenic mixed oxide based on silica and at least one oxide of metal M selected from of Al, Ti and Fe with the content of metal M oxide in the mixed oxide being from 01 to 10% by weight, and from 5 to 70% by weight of at least one IR-opacifier selected from the group consisting of silicon carbide, zirconium dioxide, ilmenites, iron titanates, zirconium silicates, manganese oxides, graphites, carbon blacks and mixtures thereof.Type: GrantFiled: July 9, 2019Date of Patent: April 16, 2024Assignee: Evonik Operations GmbHInventors: Uwe Numrich, Christian Moers, Bettina Gerharz-Kalte, Björn Lazar, Matthias Geisler
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Patent number: 11920735Abstract: Method for thermal insulation of an evacuable container comprising an inner container, an outer container and a cavity disposed between the inner container and the outer container, wherein said method comprises a) using a vacuum pump to reduce a pressure in the cavity and after achieving a first value of the pressure interrupting the connection to the vacuum pump, b) subsequently making a connection from a reservoir container of the thermally insulating particulate material to a filling opening provided in the region of the cavity, c) setting the evacuable container into motion, wherein the thermally insulating particulate material flows into the cavity according to a) and the pressure in the cavity increases due to the air introduced with the thermally insulating particulate material, d) terminating the filling at a second value of the pressure by interrupting the connection from the cavity to the reservoir container, e) repeating step a), wherein the output of the vacuum pump with which the cavity is deaerType: GrantFiled: May 30, 2018Date of Patent: March 5, 2024Assignees: EVONIK OPERATIONS GMBH, STIEBEL ELTRON GMBH & CO. KGInventors: Matthias Geisler, Ann-Kathrin Herr, Hark-Oluf Asbahr, Thorsten Schultz, Dirk Schäffner, Frank Menzel, Andreas Meng, Dominik Meier
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Patent number: 11565974Abstract: The present invention relates to a granular thermal insulation material comprising hydrophobized silicon dioxide and at least one IR opacifier, having a tamped density of up to 250 g/l and a compressive strength according to DIN EN 826:2013 at 50% compression of 150 to 300 kPa or greater than 300 kPa, to processes for production thereof and to the use thereof for thermal insulation.Type: GrantFiled: January 18, 2018Date of Patent: January 31, 2023Assignee: Evonik Operations GmbHInventors: Matthias Geisler, Ann-Kathrin Herr, Christian Moers, Gabriele Gärtner
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Publication number: 20220373383Abstract: A method for manufacturing a weighing system (10) includes, first, modeling a blank that includes a base (12) having at least one wall (26) and a lever (20) hinged to the base (12) via thin-section joints (14) and secured to the base (12) via material bridges. The lever (20) has a lever portion adjacent to the wall (26), wherein the wall (26) and the lever portion adjacent to the wall are each provided with an aperture (32, 34), and wherein the apertures (32, 34) are both aligned with each other. The manufacturing method further includes thereafter cutting open the material bridges. Before the material bridges are cut open, however, a fixing bolt (36) is pushed into the apertures (32, 34) in such a way that it engages positively in the apertures (32, 34) during the cutting open of the material bridges.Type: ApplicationFiled: August 2, 2022Publication date: November 24, 2022Inventors: Otto KUHLMANN, Matthias GEISLER
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Publication number: 20220276086Abstract: A monolithic weighing system (100) includes a plurality of levers (120), which are joined together by thin-section joints (110). The levers, on the one hand, and the thin-section joints, on the other hand, are made of different materials or material combinations; and the levers, adjoining one of the thin-section joints on both sides thereof, have a first material (21), and the thin-section joint has a second material (22) which is different from the first material. An associated method includes (i) an additive manufacturing process, in which different materials, including the first and second material (21, 22), are applied in layers and are joined to form a single-piece weighing system blank (10), wherein the weighing system blank (10) has prospective lever regions (12) and prospective thin-section joint regions (11), and (ii) subsequent subtractive finishing of the weighing system blank at least on the prospective thin-section joint regions to obtain the weighing system.Type: ApplicationFiled: May 17, 2022Publication date: September 1, 2022Inventors: Jonas BODE, Matthias GEISLER
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Patent number: 11427506Abstract: Process for producing a thermally insulating mixture comprising hydrophobic silica, in which a) a pulverulent carrier material selected from the group consisting of precipitated silicas, SiO2 aerogels, pearlites and mixtures thereof is coated with a liquid silicon compound, where the liquid silicon compound has at least one alkyl group and a boiling point of less than 200° C., and b) the pulverulent carrier material that has thus been coated with the liquid silicon compound is mixed with a composition comprising a pulverulent hydrophilic fumed silica and the mixture is subjected to thermal treatment at more than 40° C. and c) any unreacted silicon compound is subsequently removed from the thermally treated mixture, thus giving the thermally insulating mixture comprising hydrophobic silica.Type: GrantFiled: July 13, 2017Date of Patent: August 30, 2022Assignee: Evonik Operations GmbHInventors: Thorsten Schultz, Matthias Geisler, Maciej Olek, Juri Tschernjaew, Hark-Oluf Asbahr, Gabriele Gärtner
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Publication number: 20210292233Abstract: Hydrophobized granular material comprising from 30 to 95% by weight of a pyrogenic mixed oxide based on silica and at least one oxide of metal M selected from of Al, Ti and Fe with the content of metal M oxide in the mixed oxide being from 01 to 10% by weight, and from 5 to 70% by weight of at least one IR-opacifier selected from the group consisting of silicon carbide, zirconium dioxide, ilmenites, iron titanates, zirconium silicates, manganese oxides, graphites, carbon blacks and mixtures thereof.Type: ApplicationFiled: July 9, 2019Publication date: September 23, 2021Applicant: EVONIK OPERATIONS GMBHInventors: Uwe NUMRICH, Christian MOERS, Bettina GERHARZ-KALTE, Björn LAZAR, Matthias GEISLER
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Publication number: 20210269359Abstract: The present invention relates to a thermal insulating composition, containing 5 to 60% by weight of a hydrophobized granular material comprising fumed silica and at least one IR-opacifier, and 40 to 95% by weight of an inorganic and/or an organic binder, whereby the hydrophobized granular material has a content of free hydroxyl groups of no greater than 0.12 mmol/g, as determined by the reaction with lithium aluminium hydride.Type: ApplicationFiled: July 8, 2019Publication date: September 2, 2021Applicant: EVONIK OPERATIONS GMBHInventors: Matthias GEISLER, Maria NARGIELLO, Bettina GERHARZ-KALTE, Björn LAZAR, Uwe NUMRICH, Ulrich BOES, Bob Tse-Weng LIN, Craig BIESIADA
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Publication number: 20200124231Abstract: Method for thermal insulation of an evacuable container comprising an inner container, an outer container and a cavity disposed between the inner container and the outer container, wherein said method comprises a) using a vacuum pump to reduce a pressure in the cavity and after achieving a first value of the pressure interrupting the connection to the vacuum pump, b) subsequently making a connection from a reservoir container of the thermally insulating particulate material to a filling opening provided in the region of the cavity, c) setting the evacuable container into motion, wherein the thermally insulating particulate material flows into the cavity according to a) and the pressure in the cavity increases due to the air introduced with the thermally insulating particulate material, d) terminating the filling at a second value of the pressure by interrupting the connection from the cavity to the reservoir container, e) repeating step a), wherein the output of the vacuum pump with which the cavity is deaerType: ApplicationFiled: May 30, 2018Publication date: April 23, 2020Applicants: EVONIK OPERATIONS GmbH, STIEBEL ELTRON GmbH & Co. KGInventors: Matthias GEISLER, Ann-Kathrin HERR, Hark-Oluf ASBAHR, Thorsten SCHULTZ, Dirk SCHÄFFNER, Frank MENZEL, Andreas MENG, Dominik MEIER
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Publication number: 20200062661Abstract: Silicon dioxide-containing thermal-insulation sheet hydrophobized throughout with hardened surface, wherein the compressive stress at fracture measured on the sheet surface is higher than the compressive stress at fracture measured on the sectional surface in the middle cross section of the sheet parallel to the sheet surface, at, in each case, the same penetration depths of the measurement probe in the test specimen.Type: ApplicationFiled: May 8, 2018Publication date: February 27, 2020Applicant: EVONIK DEGUSSA GMBHInventors: Matthias Geisler, Frank MENZEL
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Publication number: 20200031720Abstract: The present invention relates to a granular thermal insulation material comprising hydrophobized silicon dioxide and at least one IR opacifier, having a tamped density of up to 250 g/l and a compressive strength according to DIN EN 826:2013 at 50% compression of 150 to 300 kPa or greater than 300 kPa, to processes for production thereof and to the use thereof for thermal insulation.Type: ApplicationFiled: January 18, 2018Publication date: January 30, 2020Applicant: EVONIK DEGUSSA GMBHInventors: Matthias GEISLER, Ann-Kathrin HERR, Christian MOERS, Gabriele GÄRTNER
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Publication number: 20190382952Abstract: Process for the simple and practical application of a relatively thick heat-insulating layer to a surface to be insulated by: (a) applying a porous substrate consisting of a spacer fabric to the surface of an article, which surface is to be insulated; (b) filling the porous substrate with a heat-insulating formulation; (c) curing the formulation filled into the porous substrate.Type: ApplicationFiled: February 7, 2018Publication date: December 19, 2019Applicant: EVONIK DEGUSSA GMBHInventors: Matthias GEISLER, Uwe NUMRICH, Ulrich BOES
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Publication number: 20190276358Abstract: Process for producing a thermally insulating mixture comprising hydrophobic silica, in which a) a pulverulent carrier material selected from the group consisting of precipitated silicas, SiO2 aerogels, pearlites and mixtures thereof is coated with a liquid silicon compound, where the liquid silicon compound has at least one alkyl group and a boiling point of less than 200° C., and b) the pulverulent carrier material that has thus been coated with the liquid silicon compound is mixed with a composition comprising a pulverulent hydrophilic fumed silica and the mixture is subjected to thermal treatment at more than 40° C. and c) any unreacted silicon compound is subsequently removed from the thermally treated mixture, thus giving the thermally insulating mixture comprising hydrophobic silica.Type: ApplicationFiled: July 13, 2017Publication date: September 12, 2019Applicant: Evonik Degussa GmbHInventors: Thorsten SCHULTZ, Matthias GEISLER, Maciej OLEK, Juri TSCHERNJAEW, Hark-Oluf ASBAHR, Gabriele GÄRTNER
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Patent number: 10179751Abstract: A process for producing an ammonia-treated hydrophilic thermal insulation molding which includes treating a thermal insulation molding containing hydrophilic silica with ammonia by introducing the thermal insulation molding into a chamber and supplying gaseous ammonia until a pressure difference ?p of ?20 mbar is achieved. A process for producing a thermal insulation molding containing hydrophobic silica which includes treating the ammonia-treated hydrophilic thermal insulation molding with an organosilicon compound.Type: GrantFiled: March 31, 2016Date of Patent: January 15, 2019Assignee: Evonik Degussa GmbHInventors: Matthias Geisler, Frank Menzel
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Publication number: 20180248496Abstract: An electrostatic converter includes: a stator provided with at least one electrode; a rotor including at least one blade provided with a counter-electrode, the blade being movable in rotation around an axis of rotation designed to coincide with a direction of an air flow; the electrode or the counter-electrode being coated with a dielectric material able to be biased, the stator and rotor being configured to allow a first relative movement between the electrode and counter-electrode around the axis of rotation of the rotary shaft of the rotor so as to generate an electrostatic torque when the rotor performs a rotation. The stator and the rotor are configured to allow a second relative movement between the electrode and counter-electrode so as to modify the electrostatic torque generated.Type: ApplicationFiled: January 26, 2018Publication date: August 30, 2018Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Matthias PEREZ, Sébastien BOISSEAU, Matthias GEISLER
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Publication number: 20180065892Abstract: A process for producing an ammonia-treated hydrophilic thermal insulation molding which includes treating a thermal insulation molding containing hydrophilic silica with ammonia by introducing the thermal insulation molding into a chamber and supplying gaseous ammonia until a pressure difference ?p of ?20 mbar is achieved. A process for producing a thermal insulation molding containing hydrophobic silica which includes treating the ammonia-treated hydrophilic thermal insulation molding with an organosilicon compound.Type: ApplicationFiled: March 31, 2016Publication date: March 8, 2018Applicant: Evonik Degussa GmbHInventors: Matthias GEISLER, Frank MENZEL
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Patent number: 9784402Abstract: A method for continuous production of a thermally insulating mixture comprising silica particles and opacifier particles, in which a premixed stream comprising a carrier gas, silica particles and opacifier particles is introduced into a fine impact mill, ground and mixed therein, after which the solid is separated from the gas stream, wherein the fine impact mill is an air-stream mill comprising grinding tracks arranged one above the other on a rotatable shaft.Type: GrantFiled: October 15, 2013Date of Patent: October 10, 2017Assignee: EVONIK DEGUSSA GmbHInventors: Frank Menzel, Tobias Banert, Hubert Mueller, Matthias Geisler, Thorsten Schultz
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Publication number: 20170268221Abstract: Thermal insulation body comprising a thermally insulating core having holes filled with a capillary-active material, wherein the thermally insulating core is capillary-inactive and the capillary-active material in the holes comprises capillary-active wicks.Type: ApplicationFiled: January 11, 2016Publication date: September 21, 2017Applicant: Evonik Degussa GmbHInventors: Matthias GEISLER, Gabriele GAERTNER
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Publication number: 20150204477Abstract: A method for continuous production of a thermally insulating mixture comprising silica particles and opacifier particles, in which a premixed stream comprising a carrier gas, silica particles and opacifier particles is introduced into a fine impact mill, ground and mixed therein, after which the solid is separated from the gas stream, wherein the fine impact mill is an air-stream mill comprising grinding tracks arranged one above the other on a rotatable shaft.Type: ApplicationFiled: October 15, 2013Publication date: July 23, 2015Applicant: EVONIK DEGUSSA GMBHInventors: Frank Menzel, Tobias Banert, Hubert Mueller, Matthias Geisler, Thorsten Schultz