Patents by Inventor István Mészáros
István Mészáros 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: 11420149Abstract: A method for separating carbon dioxide and water from a gas mixture by cyclic adsorption/desorption, using a unit containing an adsorber structure, comprising the following repeating steps: (a) contacting said mixture with sorbent material; (b) at least one of evacuating said unit and heating said sorbent material and extracting the gaseous carbon dioxide and water vapour and separating gaseous carbon dioxide from water vapour; (c) cooling the adsorber structure and re-pressurisation; wherein (i) in step (c) the heat released is stored in a first heat storage device; (ii) during step (b) the sensible and latent heat of gaseous carbon dioxide and water vapour as product gases is stored in second heat storage device; and (iii) during step (b) the heat required for heating said sorbent material is supplied from heat recovered in at least one of step actions (i) and (ii) of previous sequence(s).Type: GrantFiled: June 5, 2019Date of Patent: August 23, 2022Assignee: CLIMEWORKS AGInventors: Christoph Gebald, Nicolas Repond, Jan André Wurzbacher, Anca Elena Timofte, Istvan Meszaros, Benjamin Keusch
-
Publication number: 20210187434Abstract: A method for separating carbon dioxide and water from a gas mixture by cyclic adsorption/desorption, using a unit containing an adsorber structure, comprising the following repeating steps: (a) contacting said mixture with sorbent material; (b) at least one of evacuating said unit and heating said sorbent material and extracting the gaseous carbon dioxide and water vapour and separating gaseous carbon dioxide from water vapour; (c) cooling the adsorber structure and re-pressurisation; wherein (i) in step (c) the heat released is stored in a first heat storage device; (ii) during step (b) the sensible and latent heat of gaseous carbon dioxide and water vapour as product gases is stored in second heat storage device; and (iii) during step (b) the heat required for heating said sorbent material is supplied from heat recovered in at least one of step actions (i) and (ii) of previous sequence(s).Type: ApplicationFiled: June 5, 2019Publication date: June 24, 2021Applicant: CLIMEWORKS AGInventors: Christoph GEBALD, Nicolas REPOND, Jan André WURZBACHER, Anca Elena TIMOFTE, Istvan MESZAROS, Benjamin KEUSCH
-
Publication number: 20080135139Abstract: A method for manufacturing a high ductility and high hot tensile strength tungsten wire for incandescent lamp filaments is disclosed. The method comprises the steps of preparing a tungsten alloy, swaging a tungsten rod from the alloy, and drawing the swaged rod to wire size in multiple drawing passes. In the method, the wire is annealed between predetermined draws. It is proposed that an annealing is performed before the final drawing pass, by annealing the wire at a temperature between 1100-1300° C. There is also provided a tungsten wire for incandescent lamp filament, which has high ductility and high hot tensile strength. The tungsten wire of the invention has a cold tensile strength-hot tensile strength ratio not exceeding 3.5.Type: ApplicationFiled: August 16, 2007Publication date: June 12, 2008Inventors: Gyorgy Nagy, Istvan Meszaros, Tamas Gal, Attila Nagy, Peter Jusztin
-
Publication number: 20050155680Abstract: A method for manufacturing a high ductility and high hot tensile strength tungsten wire for incandescent lamp filaments is disclosed. The method comprises the steps of preparing a tungsten alloy, swaging a tungsten rod from the alloy, and drawing the swaged rod to wire size in multiple drawing passes. In the method, the wire is annealed between predetermined draws. It is proposed that an annealing is performed before the final drawing pass, by annealing the wire at a temperature between 1100-1300° C. There is also provided a tungsten wire for incandescent lamp filament, which has high ductility and high hot tensile strength. The tungsten wire of the invention has a cold tensile strength—hot tensile strength ratio not exceeding 3.5.Type: ApplicationFiled: January 16, 2004Publication date: July 21, 2005Inventors: Gyorgy Nagy, Istvan Meszaros, Tamas Gal, Attila Nagy, Peter Jusztin
-
Patent number: 6624577Abstract: A tungsten-rhenium filament for an operation temperature between 2900 and 3200° K is disclosed. The filament comprises an aluminum-potassium-silicon (AKS) additive. The filament has a grain microstructure comprising substantially exclusively elongated interlocking grains with a Grain Aspect Ratio (GAR) not less than 12. The rhenium content of the filament is between 0.2-0.4% by weight. A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0.2-0.4% by weight. The alloy powder is pressed and presintered, and thereafter sintered with direct current. A rhenium-tungsten filament is formed, which has a metastable crystal structure. The filament is annealed below the recrystallisation temperature, and recrystallised above the crystallization temperature. There is also provided a halogen incandescent lamp with a glass envelope enclosing a tungsten-rhenium filament.Type: GrantFiled: March 19, 2001Date of Patent: September 23, 2003Assignee: General Electric CompanyInventors: István Mészáros, Tamás Gál, György Nagy, Béla Szeles
-
Patent number: 6597107Abstract: A tungsten-rhenium filament is disclosed. The filament has a re-crystallization temperature above 2000° C., and it comprises an aluminum-potassium-silicon (AKS) additive. The potassium content of the filament is between 80-110 ppm, and the rhenium content is between 0.05-0.19% by weight. A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0.05-0.19% by weight, and a potassium content between 80-110 ppm. The alloy powder is pressed and presintered, and thereafter sintered with direct current. A rhenium-tungsten filament is formed which has a metastable crystal structure. The filament is wound on a mandrel, and it is annealed on the mandrel below the re-crystallization temperature. The filament is finally re-crystallized above the re-crystallization temperature. A halogen incandescent lamp with an envelope enclosing a tungsten-rhenium filament is also provided.Type: GrantFiled: January 11, 2002Date of Patent: July 22, 2003Assignee: General Electric CompanyInventors: István Mészáros, Tamás Gál, György Nagy, Zita Fábián
-
Publication number: 20030132707Abstract: A tungsten-rhenium filament is disclosed. The filament has a re-crystallization temperature above 2000 ° C., and it comprises an aluminum-potassium-silicon (AKS) additive. The potassium content of the filament is between 80-110 ppm, and the rhenium content is between 0.05-0.19 % by weight. A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0.05-0.19 % by weight, and a potassium content between 80-110 ppm. The alloy powder is pressed and presintered, and thereafter sintered with direct current. A rhenium-tungsten filament is formed which has a metastable crystal structure. The filament is wound on a mandrel, and it is annealed on the mandrel below the re-crystallization temperature. The filament is finally re-crystallized above the re-crystallization temperature. A halogen incandescent lamp with an envelope enclosing a tungsten-rhenium filament is also provided.Type: ApplicationFiled: January 11, 2002Publication date: July 17, 2003Applicant: GENERAL ELECTRIC COMPANYInventors: Istvan Meszaros, Tamas Gal, Gyorgy Nagy, Zita Fabian
-
Publication number: 20020145373Abstract: A tungsten-rhenium filament for an operation temperature between 2900 and 3200° K is disclosed. The filament comprises an aluminum-potassium-silicon (AKS) additive. The filament has a grain microstructure comprising substantially exclusively elongated interlocking grains with a Grain Aspect Ratio (GAR) not less than 12. The rhenium content of the filament is between 0,2-0,4% by weight. A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0,2-0,4% by weight. The alloy powder is pressed and presintered, and thereafter sintered with direct current. A rhenium-tungsten filament is formed, which has a metastable crystal structure. The filament is annealed below the recrystallisation temperature, and recrystallised above the recrystallisation temperature. There is also provided a halogen incandescent lamp with a glass envelope enclosing a tungsten-rhenium filament.Type: ApplicationFiled: March 19, 2001Publication date: October 10, 2002Applicant: General Electric CompanyInventors: Istvan Meszaros, Tamas Gal, Gyorgy Nagy, Bela Szeles
-
Patent number: 6239286Abstract: Process for the preparation of compounds of formula (I) wherein R means hydrogen atom, or C1-6 alkyl group, or C7-12 aralkyl group or phenyl group, characterised in that: a) the compound of formula (III) is reacted with a compound of formula (IV) wherein X means halogen atom or C1-5 alkoxy group or hydroxyl group and the resulting compound of formula (II) is transformed in the presence of an oxidising agent in a reaction medium with pH above 7, into the compound of formula (I), or b) the compound of formula (III) is reacted with an anhydride of general formula (V) and the resulting compound of formula (II) transformed in the presence of an oxidising agent, in a reaction medium with pH above 7, into the compound of formula (I), or c) a compound of formula (II) is transformed in the presence of an oxidising agent, in a reaction medium with pH above 7, into the compound of formula (I), and if desired, the resulting compounds of formula (I), before or after isolation, are transformed into acid addition salts, orType: GrantFiled: May 15, 2000Date of Patent: May 29, 2001Assignee: Sanofi-SynthelaboInventors: Attila Kis-Tamás, Csaba Huszár, Bertrand Castro, Attila Németh, Péter Aranyosi, Károly Gyüre, István Mészáros, Ilona Dervalicsné Zrínyi, Katalin Dubovszki, Lajosné Páli, Antal Gajáry, Attila Supic, Zsuzsanna Nád, Zoltán Makovi, Endre Kollár, Zsuzsanna Csetriné Hári, Ágnes Kunsztné Kárász, Erzsébet Bognár
-
Patent number: 6211382Abstract: Process for the preparation of compounds of formula (I) wherein R means hydrogen atom, or C1-6 alkyl group, or C7-12 aralkyl group or phenyl group, characterised in that a) the compound of formula (III) is reacted with a compound of formula (IV) wherein X means halogen atom or C1-5 alkoxy group or hydroxyl group, and the resulting compound of formula (II) is transformed, in a reaction medium with pH above 7, into the compound of formula (I) or b) the compound of formula (III) is reacted with an anhydride of general formula (V) and the resulting compound of formula (II) transformed, in a reaction medium with pH above 7, into the compound of formula (I), or c) a compound of formula (II) is transformed, in a reaction medium with pH above 7, into the compound of formula (I), and if desired, the resulting compounds of formula (I), before or after isolation, are transformed into acid addition salts, or the compounds of formula (I) are liberated from their acid addition salts.Type: GrantFiled: April 13, 2000Date of Patent: April 3, 2001Assignee: Sanofi-SynthelaboInventors: Csaba Huszár, Attila Kis-Tamás, Attila Németh, Zsuzsanna Nád, Zoltán Makovi, Antal Gajáry, Endre Kollár, Péter Aranyosi, Károly Gyüre, István Mészáros, Zsuzsanna Csetriné Hári, Attila Supic, Ilona Dervalicsne Zrinyi, Katalin Dubovszki, Lajosné Páli, Ágnes Kunsztné Kárász, Erzsébet Bognár
-
Patent number: 6190466Abstract: The invention relates to non-sag tungsten wire for being used in light sources or heating elements, which tungsten wire is prepared from a tungsten block by powder metallurgy process with thermomechanical technique, and has an overlapped crystal structure after recrystallization and contains a dopant material. The essential feature of the tungsten wire according to the invention is that as the dopant material, it contains at least one of the following additive materials: lanthanum/III/oxide, cerium dioxide.Type: GrantFiled: January 15, 1997Date of Patent: February 20, 2001Assignee: General Electric CompanyInventors: Jozsef Apagyi, Istvan Meszaros, Gyorgy Nagy, Robert J. Arena, Milan R. Vukcevich
-
Patent number: 5935388Abstract: A distillation plant includes a heat pump whose working fluid is compressed by a vapor jet compressor. A collection location for a liquid is arranged in the stripper part of a distillation column of the plant. At least a portion of the collected liquid is provided in the vaporized form as strip vapor. Connections lead from the collection location to a first vaporizer and to a second vaporizer. The liquid can be vaporized in these vaporizers at an elevated and at a reduced pressure respectively. The vapor jet compressor is connected to the two vaporizers and to the column in such a manner that the vapor from the second vaporizer can be compressed under a driving jet action of the vapor from the first vaporizer and used in the column as strip vapor. A pump is arranged in the connection to the first vaporizer and at least one restrictor member is contained in the connection to the second vaporizer.Type: GrantFiled: October 20, 1997Date of Patent: August 10, 1999Assignee: Sulzer Chemtech AGInventor: Istvan Meszaros
-
Patent number: 5754005Abstract: An inlead for an electric lamp formed of an alloy of tungsten and molybdenum. The inlead has a rate of thermal expansion or contraction approximating that of the glass forming the bulb. This minimizes the expansion/contraction mis-match stress between the two materials. In addition, the alloy composition functions to reduce oxidation and degradation of the lead.Type: GrantFiled: October 29, 1993Date of Patent: May 19, 1998Assignee: General Electric CompanyInventors: George E. Sakoske, Wayne A. Lasch, Joseph M. Ranish, Milan R. Vukcevich, Thomas H. Yu, Bernard W. Rachel, Richard G. Lynce, Istvan Meszaros, Gyorgy Nagy, Tamas Gal
-
Patent number: 4143574Abstract: A fineblanking press having two groups of elements, the first group including an interchangeable die set having an upper die member, a lower die member and guide posts with the second group including a support plate, guide pins and an ejector element, the separate groups providing improved interchangeability, maintenance and stability.Type: GrantFiled: November 7, 1977Date of Patent: March 13, 1979Assignee: Fribosa Ltd.Inventors: Urs Ryser, Istvan Meszaros, Rudolf Graf, Hans Reusser