Patents by Inventor Arthur J. Kahaian
Arthur J. Kahaian 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: 20180356387Abstract: A package comprising a body comprising a first compartment containing a first substance and a second compartment containing a second substance. The package includes a first state in which the first compartment is isolated from the second compartment such that the first substance is separated from the second substance, and a second state in which the first compartment communicates with the second compartment such that the first substance and the second substance combine.Type: ApplicationFiled: August 14, 2018Publication date: December 13, 2018Applicant: Ecolab USA Inc.Inventors: Arthur J. Kahaian, Sascha J. Welz, Joe L. Schwartz, Adam J. Bauer, Lyle Sampson
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Patent number: 10078073Abstract: A package comprising a body comprising a first compartment containing a first substance and a second compartment containing a second substance. The package includes a first state in which the first compartment is isolated from the second compartment such that the first substance is separated from the second substance, and a second state in which the first compartment communicates with the second compartment such that the first substance and the second substance combine.Type: GrantFiled: September 11, 2014Date of Patent: September 18, 2018Assignee: Ecolab USA Inc.Inventors: Arthur J. Kahaian, Sasha J. Welz, Joe L. Schwartz, Adam J. Bauer, Lyle Sampson
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Patent number: 9128010Abstract: Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a piezoelectric microbalance sensor. A particular embodiment of a piezoelectric microbalance sensor is additionally disclosed, along with at least one method for using the particular embodiment that is independent of whether fluorometric monitoring and control techniques are utilized.Type: GrantFiled: March 14, 2013Date of Patent: September 8, 2015Assignee: Ecolab USA Inc.Inventors: Arthur J Kahaian, Dmitri L Kouznetsov, John E Hoots, Rodney H Banks, David Ambrose
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Patent number: 8999561Abstract: An electrochemical device includes a thermally-triggered intumescent material or a gas-triggered intumescent material. Such devices prevent or minimize short circuits in a device that could lead to thermal run-away. Such devices may include batteries or supercapacitors.Type: GrantFiled: May 10, 2011Date of Patent: April 7, 2015Assignee: UChicago Argonne, LLCInventors: Daniel R. Vissers, Khalil Amine, Michael M. Thackeray, Arthur J. Kahaian, Christopher S. Johnson
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Publication number: 20150079688Abstract: A package comprising a body comprising a first compartment containing a first substance and a second compartment containing a second substance. The package includes a first state in which the first compartment is isolated from the second compartment such that the first substance is separated from the second substance, and a second state in which the first compartment communicates with the second compartment such that the first substance and the second substance combine.Type: ApplicationFiled: September 11, 2014Publication date: March 19, 2015Applicant: Ecolab USA Inc.Inventors: Arthur J. Kahaian, Sascha J. Weiz, Joe L. Schwartz, Adam J. Bauer, Lyle Sampson
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Patent number: 8956875Abstract: Provided are automated methods for measuring soluble magnesium concentration in water using fluorescence. The methods employ the use of a pH-buffered liquid and a magnesium coordinating fluorescing reagent. In certain embodiments, the methods may further employ measuring total hardness concentration of the water by displacing any soluble calcium with soluble magnesium and then re-measuring the soluble magnesium concentration. Optionally, the soluble calcium concentration can be determined by subtracting the measured soluble magnesium concentration from the measured total hardness concentration.Type: GrantFiled: March 14, 2013Date of Patent: February 17, 2015Assignee: Ecolab USA, Inc.Inventors: Arthur J. Kahaian, Alexandra Knoth, Hui Li, Rodney H. Banks, Joe L. Schwartz, Sascha J. Welz
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Patent number: 8945371Abstract: Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a piezoelectric microbalance sensor. A particular embodiment of a piezoelectric microbalance sensor is additionally disclosed, along with at least one method for using the particular embodiment that is independent of whether fluorometric monitoring and control techniques are utilized.Type: GrantFiled: March 14, 2013Date of Patent: February 3, 2015Assignee: Ecolab USA Inc.Inventors: Dmitri L Kouznetsov, John E Hoots, Arthur J Kahaian, Rodney H Banks, David Ambrose
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Publication number: 20140273243Abstract: Provided are automated methods for measuring soluble magnesium concentration in water using fluorescence. The methods employ the use of a pH-buffered liquid and a magnesium coordinating fluorescing reagent. In certain embodiments, the methods may further employ measuring total hardness concentration of the water by displacing any soluble calcium with soluble magnesium and then re-measuring the soluble magnesium concentration. Optionally, the soluble calcium concentration can be determined by subtracting the measured soluble magnesium concentration from the measured total hardness concentration.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: ECOLAB USA INC.Inventors: Arthur J. Kahaian, Alexandra Knoth, Hui Li, Rodney H. Banks, Joe L. Schwartz, Sascha J. Welz
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Publication number: 20140260566Abstract: Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a piezoelectric microbalance sensor. A particular embodiment of a piezoelectric microbalance sensor is additionally disclosed, along with at least one method for using the particular embodiment that is independent of whether fluorometric monitoring and control techniques are utilized.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: ECOLAB USA INC.Inventors: Arthur J Kahaian, Dmitri L Kouznetsov, John E Hoots, Rodney H Banks, David Ambrose
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Publication number: 20140262202Abstract: Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a piezoelectric microbalance sensor. A particular embodiment of a piezoelectric microbalance sensor is additionally disclosed, along with at least one method for using the particular embodiment that is independent of whether fluorometric monitoring and control techniques are utilized.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: ECOLAB USA INC.Inventors: Dmitri L. Kouznetsov, John E. Hoots, Arthur J. Kahaian, Rodney H. Banks, David Ambrose
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Publication number: 20110281154Abstract: An electrochemical device includes a thermally-triggered intumescent material or a gas-triggered intumescent material. Such devices prevent or minimize short circuits in a device that could lead to thermal run-away. Such devices may include batteries or supercapacitors.Type: ApplicationFiled: May 10, 2011Publication date: November 17, 2011Inventors: Daniel R. Vissers, Khalil Amine, Michael M. Thackeray, Arthur J. Kahaian, Christopher S. Johnson
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Patent number: 7632412Abstract: A method for controlling a cooling water tower comprising: providing a cooling tower system, which includes a recirculated evaporative cooling water stream, a source of make-up water, an evaporative cooling unit, a heat exchanger, a bleed off line, and a bleed-off valve which is in communication with said bleed-off line; providing a plurality of conduits through which said makeup water flows into said evaporative cooling water stream, wherein there is at least a first conduit that contains a weak acid cation ion exchange column and a second conduit that does not contain a weak acid ion exchange column, and wherein each conduit has at least one conduit valve; choosing a pH and a conductivity setpoint value and a deadband value above and below said setpoint value in said cooling tower system; measuring both the pH of said evaporative cooling water stream with one or more pH meters and conductivity of said evaporative cooling water stream with one or more conductivity meters; and implementing a response to saidType: GrantFiled: November 3, 2006Date of Patent: December 15, 2009Assignee: Nalco CompanyInventors: Donald A. Johnson, Steven R. Hatch, Arthur J. Kahaian
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Publication number: 20090277841Abstract: This invention is an improved process for operation of evaporative recirculating cooling systems. In addition to reducing the scaling and corrosive tendencies of the water, the method eliminates or reduces discharge from the system without creating any localized corrosive or scaling conditions as a result of the treatment process. The described measurement and control system generally comprises an array of measurements, a means of implementing control logic, and an array of control actions including activating an ion exchange device to treat makeup water. The measurements can include of physical measurements of flow rates, chemical measurements of water composition, and performance-related metrics such as water corrosiveness or scaling tendency. Preferably, the measurements include one or more of pH, conductivity, hardness, alkalinity, corrosiveness, scaling tendency, treatment additive dosage level, and treatment additive residual of the makeup, treated makeup, and recirculating water.Type: ApplicationFiled: May 7, 2008Publication date: November 12, 2009Inventors: Donald A. Johnson, Arthur J. Kahaian
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Publication number: 20080105621Abstract: A method for controlling a cooling water tower comprising: providing a cooling tower system, which includes a recirculated evaporative cooling water stream, a source of make-up water, an evaporative cooling unit, a heat exchanger, a bleed off line, and a bleed-off valve which is in communication with said bleed-off line; providing a plurality of conduits through which said makeup water flows into said evaporative cooling water stream, wherein there is at least a first conduit that contains a weak acid cation ion exchange column and a second conduit that does not contain a weak acid ion exchange column, and wherein each conduit has at least one conduit valve; choosing a pH and a conductivity setpoint value and a deadband value above and below said setpoint value in said cooling tower system; measuring both the pH of said evaporative cooling water stream with one or more pH meters and conductivity of said evaporative cooling water stream with one or more conductivity meters; and implementing a response to saidType: ApplicationFiled: November 3, 2006Publication date: May 8, 2008Inventors: Donald A. Johnson, Steven R. Hatch, Arthur J. Kahaian
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Patent number: 7358009Abstract: Lithium metal oxide compounds of nominal formula Li2MO2, in which M represents two or more positively charged metal ions, selected predominantly and preferably from the first row of transition metals are disclosed herein. The Li2MO2 compounds have a layered-type structure, which can be used as positive electrodes for lithium electrochemical cells, or as a precursor for the in-situ electrochemical fabrication of LiMO2 electrodes. The Li2MO2 compounds of the invention may have additional functions in lithium cells, for example, as end-of-discharge indicators, or as negative electrodes for lithium cells.Type: GrantFiled: February 12, 2003Date of Patent: April 15, 2008Assignee: UChicago Argonne, LLCInventors: Christopher S. Johnson, Michael M. Thackeray, John T. Vaughey, Arthur J. Kahaian, Jeom-Soo Kim
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Patent number: 7049031Abstract: A positive electrode for a non-aqueous lithium cell comprising a LiMn2?xMxO4 spinel structure in which M is one or more metal cations with an atomic number less than 52, such that the average oxidation state of the manganese ions is equal to or greater than 3.5, and in which 0?x?0.15, having one or more lithium spine oxide LiM?2O4 or lithiated spinel oxide Li1+yM?2O4 compounds on the surface thereof in which M? are cobalt cations and in which 0?y?1.Type: GrantFiled: January 28, 2003Date of Patent: May 23, 2006Assignee: The University of ChicagoInventors: Christopher S. Johnson, Michael M. Thackeray, Arthur J. Kahaian
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Publication number: 20030180615Abstract: A positive electrode for a non-aqueous lithium cell or battery in which the positive electrode comprising a LiMn2−xMxO4 spinel structure in which M is one or more cations with an atomic number less than 52, such that the average oxidation state of the manganese ions is equal to or greater than 3.5, and in which 0≦x≦0.15, having one or more lithium spine oxide LiM′2O4 or lithiated spinel oxide Li1+yM′2O4 compounds in which the M′ cations are selected from one or more of lithium, cobalt, titanium or manganese and in which 0<y≦1.Type: ApplicationFiled: January 28, 2003Publication date: September 25, 2003Applicant: The University of ChicagoInventors: Christopher S. Johnson, Michael M. Thackeray, Arthur J. Kahaian
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Publication number: 20030180616Abstract: Lithium metal oxide compounds of nominal formula Li2MO2, in which M represents two or more positively charged metal ions, selected predominantly and preferably from the first row of transition metals are disclosed herein. The Li2MO2 compounds have a layered-type structure, which can be used as positive electrodes for lithium electrochemical cells, or as a precursor for the in-situ electrochemical fabrication of LiMO2 electrodes. The Li2MO2 compounds of the invention may have additional functions in lithium cells, for example, as end-of-discharge indicators, or as negative electrodes for lithium cells.Type: ApplicationFiled: February 12, 2003Publication date: September 25, 2003Applicant: The University of ChicagoInventors: Christopher S. Johnson, Michael M. Thackeray, John T. Vaughey, Arthur J. Kahaian, Jeom-Soo Kim
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Patent number: 6322928Abstract: Improved lithium vanadium oxide formulations are presented having a nominal formula of LixV3−&dgr;M&dgr;Oy. Herein preferred cation doped vanadium oxide materials, electrodes using such materials, and electrochemical cells including at least one electrode therein comprising such materials are provided.Type: GrantFiled: September 23, 1999Date of Patent: November 27, 2001Assignee: 3M Innovative Properties CompanyInventors: Michael M. Thackeray, Arthur J. Kahaian, Keith D. Kepler, Donald R. Vissers
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Patent number: 6221531Abstract: A spinel-type structure with the general formula Li[Ti1.67Li0.33−yMy]O4, for 0<y≦0.33, where M=Mg and/or Al. The structure is usefid as a negative electrode for a non-aqueous electrochemical cell and in a non-aqueous battery comprising an plurality of cells, electrically connected, each cell comprising a negative electrode, an electrolyte and a positive electrode, the negative electrode consisting of the spinel-type structure disclosed.Type: GrantFiled: July 8, 1999Date of Patent: April 24, 2001Assignee: The University of ChicagoInventors: John T. Vaughey, Michael M. Thackeray, Arthur J. Kahaian, Andrew N. Jansen, Chun-hua Chen