Patents by Inventor Andree Bergmann
Andree Bergmann 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: 20160195487Abstract: In a method for determining a quality of reducing agent, a pretreatment of the reducing agent is firstly performed. The temperature of the pretreated reducing agent is subsequently determined. The electrical conductivity of the pretreated reducing agent is then determined, and subsequently, the quality of the reducing agent is calculated with the aid of the electrical conductivity and the temperature.Type: ApplicationFiled: July 31, 2014Publication date: July 7, 2016Inventors: Jan HODGSON, STEVN SCHEPERS, Andree BERGMANN, Morten-Peter MOELLER
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Patent number: 7481041Abstract: An exhaust system for a mobile combustion engine includes at least one exhaust pipe. The exhaust pipe has at least one catalytically active reaction chamber, inside which long-chain hydrocarbons contained in the exhaust gas are cracked. A method for operating such an exhaust system is also provided.Type: GrantFiled: May 9, 2005Date of Patent: January 27, 2009Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventors: Thomas Nagel, Andrée Bergmann
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Publication number: 20060248877Abstract: An exhaust system for a mobile combustion engine includes at least one exhaust pipe. The exhaust pipe has at least one catalytically active reaction chamber, inside which long-chain hydrocarbons contained in the exhaust gas are cracked. A method for operating such an exhaust system is also provided.Type: ApplicationFiled: May 9, 2005Publication date: November 9, 2006Inventors: Thomas Nagel, Andrée Bergmann
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Patent number: 6740178Abstract: A method for producing a metallic honeycomb configuration is described. The method includes forming a honeycomb body by stacking and/or winding layers of steel sheet containing chromium and aluminum resulting in the honeycomb body having channels through which a fluid can flow. The honeycomb body is introduced into a tubular jacket. Connections are formed between neighboring layers of steel sheet by thermal treatment. The honeycomb body is then cooled down. It is preferred for the layers of steel sheet to be provided with a rolling oil having a high carbon content before the forming of the honeycomb body, with the effect that a layer of carbon enhancing the sintering process is formed in the thermal treatment. The number of connections produced in individual regions can be further influenced by selective introduction of stresses or by stress relief.Type: GrantFiled: March 14, 2002Date of Patent: May 25, 2004Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbHInventors: Ferdi Kurth, Andree Bergmann, Helge Schlotmann, Günther Faust, Ludwig Wieres
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Patent number: 6630258Abstract: A low-temperature fuel cell having two porous electrodes is described. An electrolyte having a surface on a fuel gas side and a surface on a reaction gas side is disposed between the electrodes. A method for wetting at least one of the surfaces of the electrolyte in such a fuel cell is also described. To this end the fuel cell is positioned adjacent to at least one channel element containing a semi-permeable membrane through which a fluid guided in the channel element is able to pass towards the electrolyte and at least partly covers at least one of the surfaces of the electrolyte with a layer of water so that the reactions taking place at the electrolyte are enhanced. The invention is advantageous insofar as dosing can be carried out via an adjustment of the pressure or via the concentration of water in the fluid, in particular if the fluid also contains a carrier medium.Type: GrantFiled: October 30, 2000Date of Patent: October 7, 2003Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventors: Rolf Brück, Andree Bergmann, Jörg-Roman Konieczny
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Patent number: 6589670Abstract: Metal foils are soldered using a soldering material. The metal foils are disposed in layers and/or are wound in layers to form a honeycomb body. An aluminum content of the foils amounts to at least 6 wt. %. The material is based upon nickel and contains 17 to 23 wt. % chromium, 5 to 10 wt. % silicon, 18 to 20 wt. % iron, and less than 0.5 wt. % boron.Type: GrantFiled: September 9, 2002Date of Patent: July 8, 2003Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbHInventor: Andree Bergmann
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Patent number: 6582847Abstract: The invention relates to a method for producing an electrode and an electrode for a fuel cell, especially a low temperature fuel cell. According to the method, a blank containing organic polymers is subjected to a thermal treatment in order to convert the organic polymers at least partially into conductive polymers, especially with a graphite-type structure.Type: GrantFiled: October 30, 2000Date of Patent: June 24, 2003Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventors: Rolf Brück, Andrée Bergmann, Jörg-Roman Konieczny
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Patent number: 6558832Abstract: A fuel cell module containing at least two fuel cells, especially low-temperature fuel cells, is described. Each fuel cell has two electrodes of different polarity as well as an electrolyte positioned between the electrodes. Each fuel cell is supplied with fuel via a fuel supply channel and with an oxidant via an oxidant supply channel. The fuel cells are substantially juxtaposed. The electrodes of different polarity are electrically connected with each other. The electrolytes of each cell are situated essentially in the same plane. Several fuel cells connected in series constitute a string or row and several strings can be connected in parallel.Type: GrantFiled: October 30, 2000Date of Patent: May 6, 2003Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Rolf Brück, Andree Bergmann, Jörg-Roman Konieczny
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Publication number: 20030049483Abstract: Metal foils are soldered using a soldering material. The metal foils are disposed in layers and/or are wound in layers to form a honeycomb body. An aluminum content of the foils amounts to at least 6 wt. %. The material is based upon nickel and contains 17 to 23 wt. % chromium, 5 to 10 wt. % silicon, 18 to 20 wt. % iron, and less than 0.5 wt. % boron.Type: ApplicationFiled: September 9, 2002Publication date: March 13, 2003Inventor: Andree Bergmann
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Patent number: 6528452Abstract: In order to reduce polluting components of an exhaust gas from a combustion engine, a structure with a metal sheet is proposed, which has a catalytically active surface. The surface of the metal sheet is at least partially provided with a catalytically active metal oxide layer, in particular titanium oxide.Type: GrantFiled: October 10, 2000Date of Patent: March 4, 2003Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventor: Andrée Bergmann
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Publication number: 20020152614Abstract: A method for producing a metallic honeycomb configuration is described. The method includes forming a honeycomb body by stacking and/or winding layers of steel sheet containing chromium and aluminum resulting in the honeycomb body having channels through which a fluid can flow. The honeycomb body is introduced into a tubular jacket. Connections are formed between neighboring layers of steel sheet by thermal treatment. The honeycomb body is then cooled down. It is preferred for the layers of steel sheet to be provided with a rolling oil having a high carbon content before the forming of the honeycomb body, with the effect that a layer of carbon enhancing the sintering process is formed in the thermal treatment. The number of connections produced in individual regions can be further influenced by selective introduction of stresses or by stress relief.Type: ApplicationFiled: March 14, 2002Publication date: October 24, 2002Inventors: Ferdi kurth, Andree Bergmann, Helge Schlotmann, Gunther Faust, Ludwig Wieres
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Patent number: 6376118Abstract: A fuel cell includes two electrodes of different polarity. A proton-conducting membrane electrolyte is disposed between the two electrodes. At least one of the electrodes has a gas-side surface and an electrolyte-side surface. The electrode has pores which are permeable for a gas from the gas-side surface to the electrolyte-side surface. The pores have respective pore inlet openings and pore outlet openings. The pore inlet openings have a first total area and the pore outlet openings have a second total area smaller than the first total area. As a result of the configuration of the pores, gas can advantageously pass through the electrode more easily. Furthermore, the loss of humidity from the electrolyte is reduced. The fuel cell can be combined with an electromotor to provide an alternative to conventional internal combustion engines, especially in vehicles and rail systems.Type: GrantFiled: October 30, 2000Date of Patent: April 23, 2002Assignee: Emitec Gesellschaft Emmissionstechnologie mbHInventors: Rolf Brück, Andreé Bergmann, Jörg-Roman Konieczny