Patents by Inventor Theodor Cyron
Theodor Cyron 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: 5480621Abstract: A honeycomb body assembly, in particular a catalyst carrier body, includes at least one electrically heatable honeycomb body having layered metal sheets forming a stack with a plurality of channels through which a fluid can flow. The metal sheets have a thickness of about 0.03 to 0.12 mm. The honeycomb body is electrically subdivided with regard to its cross-section or in its axial direction. At least one electric current path is formed through the metal sheets with an electric resistance of between 0.01 and 2 .OMEGA.. The resistance, which is dependent on the temperature, can be used for monitoring and regulating the honeycomb assembly.Type: GrantFiled: April 27, 1993Date of Patent: January 2, 1996Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventors: Hans-Jurgen Breuer, Theodor Cyron, Wolfgang Maus, Helmut Swars, Ludwig Wieres
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Patent number: 5322672Abstract: A honeycomb body assembly, in particular a catalyst carrier body, comprises at least one electrically heatable honeycomb body having layered metal sheets forming a stack with a plurality of channels through which a fluid can flow. The metal sheets have a thickness of about 0.03 to 0.12 mm. The honeycomb body is electrically subdivided with regard to its cross-section and/or in its axial direction. At least one electric current path is formed through the metal sheets with an electric resistance of between 0.01 and 2 .OMEGA.. The resistance, which is dependent on the temperature, can be used for monitoring and regulating the honeycomb assembly.Type: GrantFiled: October 25, 1990Date of Patent: June 21, 1994Assignee: Emitec Gesellschaft fuer EmissionstechnologieInventors: Hans-Jurgen Breuer, Theodor Cyron, Wolfgang Maus, Helmut Swars, Ludwig Wieres
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Patent number: 5146743Abstract: A method of accelerating the response of an exhaust gas catalyst downstream of an internal combustion engine, the exhaust gas catalyst having at least one metal catalyst carrier body coated with ceramic and catalytically active material having a given response temperature, and the carrier body having at least one subzone, the method includes supplying electric power to the metal catalyst carrier body for direct heating at least in subzones thereof, switching on the current for a period of time at least as early as immediately after the onset of engine operation, and dimensioning the current such that at least subzones of the metal carrier body are heated to the given response temperature at least as early as the exhaust gas reaches the given response temperature. The apparatus for performing the above method includes a main catalyst and an electrically heatable precatalyst disposed upstream of the main catalyst as seen in the flow direction of the exhaust gas.Type: GrantFiled: October 25, 1990Date of Patent: September 15, 1992Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Wolfgang Maus, Helmut Swars, Hans-Jurgen Breuer, Theodor Cyron
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Patent number: 5116581Abstract: A mounting assembly for an exhaust gas catalyst includes a metallic exhaust gas catalyst carrier body and a tubular jacket in which the catalyst carrier body is disposed. The catalyst carrier body is fastened to the tubular jacket while permitting lengthwise expansion of the catalyst carrier body, through the use of beads encircling at least part of the catalyst carrier body and corresponding formations formed in the tubular jacket into which the beads protrude in the form of slots and keys. The catalyst carrier body and the beads are disposed at axial and radial distances from the tubular jacket and the formations.Type: GrantFiled: September 13, 1988Date of Patent: May 26, 1992Assignee: Interatom GmbHInventors: Theodor Cyron, Wolfgang Maus
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Patent number: 4948353Abstract: A metal catalyst carrier body assembly and a method of producing the same includes a metal catalyst carrier body having a given length, two end surfaces and a honeycomb structure formed of textured metal sheets through which gas can flow. A jacket tube surrounds the honeycomb structure and is shorter than the given length. At least a portion of the end surfaces is brazed. The jacket tube has ends each being disposed at a distance from a respective one of the end surfaces being greater than the brazed portion.Type: GrantFiled: January 15, 1988Date of Patent: August 14, 1990Assignee: EMITEC Gesellschaft fur Emissionstechnologie mbHInventors: Wolfgang Maus, Theodor Cyron
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Patent number: 4923109Abstract: A method of producing a honeycomb body including a stack of structured metal sheets disposed in layers at least partially spaced apart from each other defining a multiplicity of channels through which gases can flow, the stack having ends twisted in mutually opposite directions about at least two fixation points, and a jacket tube surrounding the sheets and being formed of at least one segment, the sheets having ends joined with the jacket tube.Type: GrantFiled: March 13, 1989Date of Patent: May 8, 1990Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4885269Abstract: A method for oxidation of the surface of a catalyst carrier body made from an aluminum-containing iron alloy and a catalyst carrier body produced according to the method, includes oxidizing the surface of the catalyst carrier body made from an aluminum-containing iron alloy with the exclusion of nitrogen. A film formed substantially of aluminum oxide is developed on the surface of the catalyst carrier body. Preferably, the step of oxidizing the surface of the catalyst carrier body is performed at an elevated temperature, such as above 900.degree. C.Type: GrantFiled: March 16, 1988Date of Patent: December 5, 1989Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventor: Theodor Cyron
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Patent number: 4847230Abstract: A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layer of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by the mType: GrantFiled: October 30, 1987Date of Patent: July 11, 1989Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4845073Abstract: A metal catalyst carrier body includes first and second differently corrugated sheet-metal layers being alternatingly wound defining conduits therebetween through which gas flows. The first sheet-metal layer has a simple first corrugation with a periodicity .lambda..sub.1 and an amplitude A.sub.1 primarily determining the size of the conduits. The second sheet-metal layer has a second corrugation with a periodicity .lambda..sub.2 and an amplitude A.sub.2. .lambda..sub.2 =(n..lambda..sub.1)/m, where n=1, 2 or 3; m=1, 2, 3, 4, 5 or 6; and m is .gtoreq.n, forming a multiplicity of periodically recurring oculating contact points having the same direction of curvature. Considering the shape and periodicity of the corrugations, the amplitude A.sub.2 is smaller than the amplitude A.sub.1 by at least an amount sufficient to cause the curvature of the first sheet-metal layer at the contact points to be at least substantially as large as the curvature of the second sheet-metal layer at the contact points.Type: GrantFiled: January 15, 1988Date of Patent: July 4, 1989Assignee: EMITEC Gesellschaft fur Emissionstechnologie mbHInventor: Theodor Cyron
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Patent number: 4842954Abstract: A blank for the production of a catalyst carrier body includes spirally-wound alternating layers of smooth and corrugated metal sheets. At least one of said corrugated sheets forms an innermost layer defining a coil-free central zone surrounded by said innermost layer. A jacket is added around the blank to form a catalyst carrier body. The sheets are wound on a toothed roller.Type: GrantFiled: November 20, 1987Date of Patent: June 27, 1989Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Theodor Cyron, Manfred Vierkotter, Rolf Hetzelberger
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Patent number: 4832998Abstract: A honeycomb body and a method of producing the body including a stack of structured metal sheets disposed in layers at least partially spaced apart from each other defining a multiplicity of channels through which gases can flow, the stack having ends twisted in mutually opposite directions about at least two fixation points, and a jacket tube surrounding the sheets and being formed of at least one segment, the sheets having ends joined with the jacket tube.Type: GrantFiled: May 11, 1987Date of Patent: May 23, 1989Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4824011Abstract: A method for producing honeycomb-like brazed metallic catalyst carrier bodies, includes applying brazing material to thin structured metal sheets, subsequently heating areas to be brazed with laser beams producing brazed connections, and rolling or laminating the metal sheets in alternating layers. An apparatus for producing the bodies and the bodies themselves are also provided.Type: GrantFiled: October 27, 1986Date of Patent: April 25, 1989Assignee: Interatom GmbHInventors: Wolfgang Maus, Rolf Kottmann, Theodor Cyron, Ludwig Wieres
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Patent number: 4822766Abstract: A metallic carrier foil to be coated with ceramic catalytic material and a method for producing the foil, include an electroformed metal foil having a plurality of microscopic holes formed therein.Type: GrantFiled: August 4, 1987Date of Patent: April 18, 1989Assignee: Interatom GmbHInventors: Theodor Cyron, Wolfgang Staubwasser
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Patent number: 4818746Abstract: A metal catalyst carrier or support body is rolled or laminated from two alternating layers of sheet metal of different structure, wherein the sheet-metal layer, at least in some areas relative to one another, have double or multiple-wave structure, in that one of the layers has a wave structure including at least two superimposed or alternating waves of different wavelength and/or amplitude and/or both layers have wave structures of different wavelength and/or amplitude, by means of which in both cases the number of contact points between the two layers is reduced and the elasticity of the resultant structure is increased, wherein none of the wavelengths is considerably smaller than the wavelenth having the greatest amplitude.Type: GrantFiled: September 29, 1986Date of Patent: April 4, 1989Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4795615Abstract: A mounting assembly for an exhaust gas catalyst and a method for manufacturing the same includes a metallic exhaust gas catalyst carrier body formed of a multiplicity of layers, at least one first brazed joint interconnecting the layers, a metallic tubular jacket in which the catalyst carrier body is disposed, and one second brazed joint fastening the catalyst carrier body to the tubular jacket while permitting lengthwise expansion of the catalyst carrier body relative to the tubular jacket.Type: GrantFiled: July 6, 1987Date of Patent: January 3, 1989Assignee: Interatom GmbHInventors: Theodor Cyron, Wolfgang Maus
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Patent number: 4777158Abstract: A method for selectively applying brazing to a catalyst carrier body includes alternately winding smooth and wavy layers of sheet metal into a catalyst carrier body having outer surfaces, dividing at least one of the outer surfaces into regions to be brazed covering a portion of the at least one outer surface as seen in circumferential and radial directions, and applying brazing to the regions and a catalyst carrier assembly for carrying out the method.Type: GrantFiled: August 18, 1986Date of Patent: October 11, 1988Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4753918Abstract: Metallic exhaust gas catalyst carrier body, includes high temperature-resistant steel sheets forming a multiplicity of cells permeable to exhaust gas in a given exhaust gas direction, the steel sheets having slits formed therein substantially transverse to the given exhaust gas direction, the slits, in unused state of the carrier body, being of such quantity and size that for every cross section of each of the steel sheets in the given exhaust gas direction substantially between 5% and 30% of the cross section is devoid of steel due to the presence of the slits.Type: GrantFiled: August 29, 1986Date of Patent: June 28, 1988Assignee: INTERATOM GmbHInventor: Theodor Cyron
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Patent number: 4719680Abstract: A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layers of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by theType: GrantFiled: July 28, 1986Date of Patent: January 19, 1988Assignee: Interatom GmbHInventor: Theodor Cyron
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Patent number: 4602001Abstract: Exhaust gas catalyst support body, especially of spirally wound or stacked thin corrugated and/or essentially smooth sheets of high temperature-resistant steel, where the contact points of the sheets are connected by a joining technique, characterized by the feature that the structural material has a high aluminum content at least in partial regions and/or in the proximity of the surface and/or the joint connections.Type: GrantFiled: April 24, 1985Date of Patent: July 22, 1986Assignee: Interatom GmbHInventor: Theodor Cyron