Patents by Inventor Jacques Plessers
Jacques Plessers 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: 7685863Abstract: A device is provided for measuring the gas content in a molten metal, the device including an immersion end having a gas-collecting body, a gas supply line opening on the immersion end, and a gas discharge line for the gases passing through the gas-collecting body. The gas-collecting body contains materials, which in contact with the molten metal do not form liquid reaction products.Type: GrantFiled: February 27, 2006Date of Patent: March 30, 2010Assignee: Heraeus Electro-Nite International N.V.Inventors: Erik Gerits, Jacques Plessers, Jos Swennen
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Patent number: 7635220Abstract: A device is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device.Type: GrantFiled: September 27, 2007Date of Patent: December 22, 2009Assignee: Heraeus Electro-Nite International N.V.Inventors: Francis Dams, Jacques Plessers, Paul Clement Verstreken
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Patent number: 7488350Abstract: A carrier tube is provided for sensors for taking measurements in metal or cryolite melts, especially in cast iron, steel, or copper melts. The carrier tube is formed from a mixture of a plant fiber material with starch and/or protein.Type: GrantFiled: December 15, 2004Date of Patent: February 10, 2009Assignee: Heraeus Electro-Nite International N.V.Inventor: Jacques Plessers
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Patent number: 7458286Abstract: A carrier tube is provided for sensors or samplers for use in metal or cryolite melts. The carrier tube has on its exterior surface longitudinal grooves and/or planar surfaces extending in the longitudinal direction of the tube.Type: GrantFiled: June 22, 2006Date of Patent: December 2, 2008Assignee: Heraeus Electro-Nite International N.V.Inventors: Jacques Plessers, William Biesmans
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Publication number: 20080196476Abstract: A device is provided for measuring the gas content in a molten metal, the device including an immersion end having a gas-collecting body, a gas supply line opening on the immersion end, and a gas discharge line for the gases passing through the gas-collecting body. The gas-collecting body contains materials, which in contact with the molten metal do not form liquid reaction products.Type: ApplicationFiled: February 27, 2006Publication date: August 21, 2008Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.Inventors: Erik Gerits, Jacques Plessers, Jos Swennen
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Patent number: 7384192Abstract: A method is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device. In addition, a corresponding device is provided for the measuring method.Type: GrantFiled: January 6, 2006Date of Patent: June 10, 2008Assignee: Heraeus Electro-Nite International N.V.Inventors: Francis Dams, Jacques Plessers, Paul Clement Verstreken
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Patent number: 7365841Abstract: A method and device are provided for analysis of a molten material using optical emission spectrometry. The molten material may be, for example, a molten metal, such as casting iron or steel, or slag, glass, or lava. A sensitive element is used having at least one emission spectrometer and at least one excitation device to effect the excitation of the molten material and to enable the partial or complete generation of a radiation to be analyzed by a spectrometer present in the sensitive element. The sensitive element is brought into contact with the molten material and transmits information, which contains analysis elements supplied by the spectrometer. An immersion sensor is also provided for carrying at least part of the device for performing the analysis method.Type: GrantFiled: June 6, 2006Date of Patent: April 29, 2008Assignee: Heraeus Electro-Nite International N.V.Inventors: Jacques Plessers, Vittorino Tusset, Marc Schyns
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Publication number: 20080019416Abstract: A device is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device.Type: ApplicationFiled: September 27, 2007Publication date: January 24, 2008Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.Inventors: Francis DAMS, Jacques PLESSERS, Paul VERSTREKEN
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Publication number: 20070000551Abstract: A carrier tube is provided for sensors or samplers for use in metal or cryolite melts. The carrier tube has on its exterior surface longitudinal grooves and/or planar surfaces extending in the longitudinal direction of the tube.Type: ApplicationFiled: June 22, 2006Publication date: January 4, 2007Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.Inventors: Jacques PLESSERS, William BIESMANS
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Publication number: 20060250614Abstract: A method and device are provided for analysis of a molten material using optical emission spectrometry. The molten material may be, for example, a molten metal, such as casting iron or steel, or slag, glass, or lava. A sensitive element is used having at least one emission spectrometer and at least one excitation device to effect the excitation of the molten material and to enable the partial or complete generation of a radiation to be analyzed by a spectrometer present in the sensitive element. The sensitive element is brought into contact with the molten material and transmits information, which contains analysis elements supplied by the spectrometer. An immersion sensor is also provided for carrying at least part of the device for performing the analysis method.Type: ApplicationFiled: June 6, 2006Publication date: November 9, 2006Applicant: Heraeus Electro-Nite International N.V.Inventors: Jacques Plessers, Vittorino Tusset, Marc Schyns
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Publication number: 20060114967Abstract: A method is provided for measuring the cooling curve of melts and/or the heating curve of melt samples with an optical fiber, wherein an immersion end of the optical fiber having an at least partially free surface is surrounded with a spacing by a temperature-resistant sample-receiving chamber. The optical fiber is immersed with its immersion end in the melt, and a sample is thereby formed in the sample-receiving chamber. The sample-receiving chamber with the sample and the optical fiber are thereafter pulled out of the molten metal. The cooling curve of the sample and/or, after previous solidification of the sample, the temperature profile during heating is measured with reference to a signal obtained by the optical fiber and forwarded to a measurement device. In addition, a corresponding device is provided for the measuring method.Type: ApplicationFiled: January 6, 2006Publication date: June 1, 2006Inventors: Francis Dams, Jacques Plessers, Paul Verstreken
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Publication number: 20050132827Abstract: A carrier tube is provided for sensors for taking measurements in metal or cryolite melts, especially in cast iron, steel, or copper melts. The carrier tube is formed from a mixture of a plant fiber material with starch and/or protein.Type: ApplicationFiled: December 15, 2004Publication date: June 23, 2005Inventor: Jacques Plessers
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Patent number: 4358948Abstract: A metallographic structure such as nodularity in castings to be made from molten metal is predicted by causing one part of the sample to rapidly solidify at a first rate and a second part of the sample to solidify at a slower rate. The temperature of at least said one part of the sample is measured during solidification. After solidification of the one part of the sample, the heat conductivity of the sample is used to predict the metallographic structure of the sample.Type: GrantFiled: May 5, 1978Date of Patent: November 16, 1982Assignee: Electro-Nite Co.Inventor: Jacques Plessers