Patents by Inventor Stéphane Dupont
Stéphane Dupont 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: 20240109038Abstract: A method of purifying tap water to produce deionized type 2 pure water on a laboratory scale with a volume of up to 300 l/h using a water purification system, the method including detecting the permeate flow rate produced by a reverse-osmosis device downstream of a permeate outlet; detecting the flow rate of retentate flow that is removed from the system downstream of a first flow rate regulator; and remote controlling the first and a second flow rate regulators based on the detection results from first and second flow meters such that a predetermined target recovery rate and a predetermined target permeate flow rate are controlled.Type: ApplicationFiled: December 15, 2023Publication date: April 4, 2024Inventors: Pascal Roitel, Christophe Paragot, Emmanuel Feuillas, Stephane Dupont
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Publication number: 20180318767Abstract: A laboratory scale water purification system for producing up to 300 l/h deionized type 2 pure water from tap water, said system comprising a feed medium flow path including a pump (1) for supplying the feed medium under pressure to a feed inlet of a reverse-osmosis (RO) device (2) which is adapted to produce a permeate flow and a concentrate flow from the feed medium. An electro-deionization (EDI) device (10) is provided and has an inlet which is in fluid communication with a permeate outlet of the RO device (2) and has a purified water outlet.Type: ApplicationFiled: October 28, 2015Publication date: November 8, 2018Inventors: Pascal Roitel, Christophe Paragot, Emmanuel Feuillas, Stephane Dupont
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Patent number: 9308308Abstract: Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source and an electrodeionization unit. The carbon source and urease source can be in the form of removable cartridges.Type: GrantFiled: October 3, 2014Date of Patent: April 12, 2016Assignees: Baxter International Inc., Baxter Healthcare S.A., Millipore CorporationInventors: Yuanpang Samuel Ding, Ying-Cheng Lo, Joshua James Miller, Justin Rohde, Sujatha Karoor, Stephane Dupont
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Publication number: 20150021268Abstract: Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source and an electrodeionization unit. The carbon source and urease source can be in the form of removable cartridges.Type: ApplicationFiled: October 3, 2014Publication date: January 22, 2015Inventors: Yuanpang Samuel Ding, Ying-Cheng Lo, Joshua James Miller, Justin Rohde, Sujatha Karoor, Stephane Dupont
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Patent number: 8858792Abstract: Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source and an electrodeionization unit. The carbon source and urease source can be in the form of removable cartridges.Type: GrantFiled: March 5, 2010Date of Patent: October 14, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A., EMD Millipore CorporationInventors: Yuanpang Samuel Ding, Ying-Cheng Lo, Joshua James Miller, Justin Rohde, Sujatha Karoor, Stephane Dupont
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Patent number: 7682569Abstract: The invention relates to an analyzer device of the kind using purified water and including one or more analyzer means adapted to carry out predetermined analyses and defining at least one point of use of the purified water and having a water purification system at least partially formed on board the device. The water purification system includes a variety of water purification modules adapted to produce purified water for the one or more analyzer means having a predetermined purity and in that the purified water is taken up by the one or more analyzer means immediately after it has been purified.Type: GrantFiled: May 26, 2004Date of Patent: March 23, 2010Assignee: Millipore CorporationInventors: Stéphane Dupont, Yves Gaignet
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Patent number: 7212965Abstract: A method of automatic processing of noise-affected speech captures and digitizes speech in the form of at least one digitised signal and extracts several time-based sequences or frames corresponding to the signal, by means of an extraction system. Each frame is decomposed by means of an analysis system into at least two different frequency bands so as to obtain at least two first vectors of representative parameters for each frame, one for each frequency band. The method converts, by means of converter systems, the first vectors of representative parameters into second vectors of parameters substantially insensitive to noise, wherein each converter system (50) is associated with one frequency band and converts the first vector of representative parameters associated with the same frequency band, and wherein a learning of the converter systems is achieved on the basis of a learning corpus which corresponds to a corpus of speech contaminated by noise.Type: GrantFiled: April 25, 2001Date of Patent: May 1, 2007Assignee: Faculte Polytechnique De MonsInventor: Stéphane Dupont
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Publication number: 20050013739Abstract: The invention relates to an analyzer device of the kind using purified water and including one or more analyzer means adapted to carry out predetermined analyses and defining at least one point of use of the purified water and having a water purification system at least partially formed on board the device. The water purification system includes a variety of water purification modules adapted to produce purified water for the one or more analyzer means having a predetermined purity and in that the purified water is taken up by the one or more analyzer means immediately after it has been purified.Type: ApplicationFiled: May 26, 2004Publication date: January 20, 2005Inventors: Stephane Dupont, Yves Gaignet
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Patent number: 6824662Abstract: An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.Type: GrantFiled: October 27, 2003Date of Patent: November 30, 2004Assignee: USFilter CorporationInventors: Li-Shiang Liang, Anil Jha, John Arba, Stephane Dupont
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Publication number: 20040089551Abstract: An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.Type: ApplicationFiled: October 27, 2003Publication date: May 13, 2004Applicant: UNITED STATES FILTER CORPORATIONInventors: Li-Shiang Liang, Anil Jha, John Arba, Stephane Dupont
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Patent number: 6649037Abstract: An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.Type: GrantFiled: May 29, 2001Date of Patent: November 18, 2003Assignee: United States Filter CorporationInventors: Li-Shiang Liang, Anil Jha, John Arba, Stephane Dupont
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Publication number: 20030182114Abstract: The present invention relates to a method of automatic processing of noise-affected speech comprising at least the following steps:Type: ApplicationFiled: November 1, 2002Publication date: September 25, 2003Inventor: Stephane Dupont
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Publication number: 20020189951Abstract: An electrodeionization apparatus and method for purifying a fluid. A fluid, such as water, can be purified by removing weakly ionizable species from the fluid. Weakly ionizable species may be dissociated at different pH levels to facilitate removal from the fluid in an electrodeionization device.Type: ApplicationFiled: May 29, 2001Publication date: December 19, 2002Inventors: Li-Shiang Liang, Anil Jha, John Arba, Stephane Dupont
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Patent number: 5925240Abstract: A water treatment system having dosing control for providing treated water having very low organic and ionic contamination, that can be accurately dispensed. The water treatment system having dosing control includes a water inlet hydraulically connected to a pump having a variable speed motor. At least one water treatment device is hydraulically connected downstream of the pump, at least one outlet valve is hydraulically connected downstream of the water treatment unit, and a recirculation line is hydraulically connected from the outlet valve to the pump. The output of the pump is controlled by a regulating device connected to the variable speed motor. The system provides for lower electrical current usage and reduced acoustical disturbances.Type: GrantFiled: May 20, 1997Date of Patent: July 20, 1999Assignee: United States Filter CorporationInventors: Frederick C. Wilkins, Li-Shiang Liang, Herbert Bendlin, Stephane Dupont, Achim Brust, Felix Nussbaum
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Patent number: 5919357Abstract: A filter cartridge assembly comprising: at least one filter cartridge; said filter cartridge including a housing having two ends, the housing containing a filter media; a first end cap disposed on one end of said housing, said first end cap including a fluid inlet port, a fluid outlet port, a first fluid distributor, and a vent including at least one hydrophobic membrane positioned in a channel formed in said first end cap that allows entrapped air to be removed from said cartridge; a second end cap disposed on a second end of said housing, said second end cap including a product collection plenum, and a second fluid distributor that separates said filter media from said product collection plenum; and a liquid transfer tube disposed within the housing and extending from said product collection plenum to said fluid outlet port, is disclosed.Type: GrantFiled: June 16, 1998Date of Patent: July 6, 1999Assignee: United States Filter CorporationInventors: Frederick C. Wilkins, Arthur F. Williams, Li-Shiang Liang, Herbert Bendlin, Stephane Dupont, Achim Brust, Bikram Yonjan
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Patent number: 5762290Abstract: The present invention relates to a system for guiding a missile in alignment onto a moving target. In particular, the guidance computer of the system has a first unit for estimating the state of the missile and the movements of a target on the basis of the measurement of the position of the missile with respect to a datum axis, obtained by angular deviation measuring means, and by using a model of the dynamic behavior of the missile as well as kinematic model of the target. Additionally, the guidance computer has a second unit linked to the first unit for deriving tracking orders and datum values for slaving the missile, and a third unit linked to the first and second units for deriving the control order applied to the missile and the first unit.Type: GrantFiled: August 21, 1997Date of Patent: June 9, 1998Assignee: Aerospatiale Societe Nationale IndustrielleInventor: Stephane Dupont