Patents by Inventor Chester L. Bejtlich
Chester L. Bejtlich 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: 9669982Abstract: A method of packaging a CMP brush having a cylindrical brush portion and a pair of end connection portions. The method includes saturating the brush with a liquid; covering the cylindrical brush portion with a flexible sheet that extends around and engages the surface of the cylindrical portion; engaging each of the end connection portions with a respective end support; inserting the dampened brush into a rigid polymer tubular shipping container and supporting the end connection portions within the polymer tube; and providing an additional exterior self-supporting packaging.Type: GrantFiled: September 28, 2013Date of Patent: June 6, 2017Assignee: Entegris, Inc.Inventors: Patrick Doering, David Trio, Chintan Patel, Chester L. Bejtlich, Christopher Vroman, Bradley H. Wood, Matthew B. Nicolas
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Publication number: 20150251834Abstract: A method of packaging a CMP brush having a cylindrical brush portion and a pair of end connection portions. The method includes saturating the brush with a liquid; covering the cylindrical brush portion with a flexible sheet that extends around and engages the surface of the cylindrical portion; engaging each of the end connection portions with a respective end support; inserting the dampened brush into a rigid polymer tubular shipping container and supporting the end connection portions within the polymer tube; and providing an additional exterior self-supporting packaging.Type: ApplicationFiled: September 28, 2013Publication date: September 10, 2015Inventors: Patrick Doering, David Trio, Chintan Patel, Chester L. Bejtlich, Christopher Vroman, Bradley H. Wood, Matthew B. Nicolas
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Publication number: 20120061346Abstract: The invention relates to a method of manufacturing a device for measuring conductivity of a liquid, in particular ultrapure water, of the kind comprising two conductivity measurement electrodes suitable for defining a cell constant enabling the measurement of the conductivity of the ultrapure liquid, characterized in that it consists of producing each of the electrodes by forming an electrode pattern from electrically conductive material on a substrate of insulating material. It also relates to the conductivity measuring device obtained by that method and to a device for measuring the Total Organic Carbon quantity implementing that conductivity measuring device.Type: ApplicationFiled: November 18, 2011Publication date: March 15, 2012Applicant: MILLIPORE CORPORATIONInventors: Aristotelis Dimitrakopoulos, Pascal Rajagopalan, Celine Le Ninivin, Yves Gaignet, Chester L. Bejtlich, III
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Publication number: 20120062243Abstract: The invention relates to a method of manufacturing a device for measuring conductivity of a liquid, in particular ultrapure water, of the kind comprising two conductivity measurement electrodes suitable for defining a cell constant enabling the measurement of the conductivity of the ultrapure liquid, characterized in that it consists of producing each of the electrodes by forming an electrode pattern from electrically conductive material on a substrate of insulating material. It also relates to the conductivity measuring device obtained by that method and to a device for measuring the Total Organic Carbon quantity implementing that conductivity measuring device.Type: ApplicationFiled: November 18, 2011Publication date: March 15, 2012Applicant: MILLIPORE CORPORATIONInventors: Aristotelis Dimitrakopoulos, Pascal Rajagopalan, Celine Le Ninivin, Yves Gaignet, Chester L. Bejtlich, III
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Patent number: 7763157Abstract: An electrodeionization device for large-volume ultra-pure deionization of water is disclosed. The device comprises a plurality of alternating ion depletion and concentration compartments, interposed between an anode assembly and a cathode assembly, through which flows either a product stream or a waste stream. Each compartment contains several fluid-accessible channels packed with an appropriate ion-exchange medium. The flow of the waste and product streams among the compartments is “parallel” (i.e., contemporaneous). The flow of a stream through the compartments—i.e., through the channels therein—is “serial” (i.e., sequential). In an embodiment, electrical current is generated through the compartments using segmented electrodes—either in the anode and/or the cathode assembly—that are connected to a single multiple-outlet power source. The device is fast, efficient, robust, and its configuration is comparatively easy to scale upwards to accommodate larger water processing volumes.Type: GrantFiled: April 2, 2004Date of Patent: July 27, 2010Assignee: Millipore CorporationInventors: Chester L. Bejtlich, III, Turgut Sarioglu, Gastón de los Reyes, Wisam Yacteen
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Publication number: 20080258742Abstract: The invention relates to a method of manufacturing a device for measuring conductivity of a liquid, in particular ultrapure water, of the kind comprising two conductivity measurement electrodes suitable for defining a cell constant enabling the measurement of the conductivity of the ultrapure liquid, characterized in that it consists of producing each of the electrodes by forming an electrode pattern from electrically conductive material on a substrate of insulating material. It also relates to the conductivity measuring device obtained by that method and to a device for measuring the Total Organic Carbon quantity implementing that conductivity measuring device.Type: ApplicationFiled: November 28, 2007Publication date: October 23, 2008Inventors: Aristotelis Dimitrakopoulos, Pascal Rajagopalan, Celine Le Ninivin, Yves Gaignet, Chester L. Bejtlich
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Publication number: 20040206627Abstract: An electrodeionization device for large-volume ultra-pure deionization of water is disclosed. The device comprises a plurality of alternating ion depletion and concentration compartments, interposed between an anode assembly and a cathode assembly, through which flows either a product stream or a waste stream. Each compartment contains several fluid-accessible channels packed with an appropriate ion-exchange medium. The flow of the waste and product streams among the compartments is “parallel” (i.e., contemporaneous). The flow of a stream through the compartments—i.e., through the channels therein—is “serial” (i.e., sequential). In an embodiment, electrical current is generated through the compartments using segmented electrodes—either in the anode and/or the cathode assembly—that are connected to a single multiple-outlet power source.Type: ApplicationFiled: April 2, 2004Publication date: October 21, 2004Inventors: Chester L. Bejtlich, Turgut Sarioglu, Gaston de los Reyes, Wisam Yacteen
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Patent number: 5581017Abstract: A rapid, highly sensitive determination, in-situ, of the integrity and/or pore size distribution of a porous membrane structure (e.g. a pleated membrane filter cartridge) is disclosed. The identification of the integrity and/or pore size characteristics involves interpreting the residence time distribution (RTD) of the membrane structure under test and includes using a tracer gas in mixture with a carrier gas as part of a diffusion or bubble-point test. The tracer gas mixture exiting the downstream surface of the membrane becomes moisturized and is excited with a pulsed (or otherwise modulated) light source at a wavelength corresponding to the absorption line of the tracer gas. The frequency of modulation is chosen such that the tracer gas preferentially generates a photo-acoustic emission while the emission due to the absorption of water present is suppressed. The detected pressure pulse is processed to produce electrical signals indicative of the concentration of tracer gas that passes through the membrane.Type: GrantFiled: June 2, 1995Date of Patent: December 3, 1996Assignee: Millipore Investment Holdings LimitedInventor: Chester L. Bejtlich, III
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Patent number: D622920Type: GrantFiled: May 2, 2007Date of Patent: August 31, 2010Assignee: Entegris CorporationInventor: Chester L. Bejtlich, III