With Inorganic Salt Treating Agent Patents (Class 134/22.16)
  • Patent number: 9579696
    Abstract: A cleaning solution for cleaning laboratory consumables comprises sodium percarbonate in a concentration of from 0.9% w/w to 1.6% w/w based on a total weight of the solution and at least one diluent to 100% w/w.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: February 28, 2017
    Assignee: GRENOVA, LLC
    Inventor: Ali Safavi
  • Patent number: 9550154
    Abstract: A method, apparatus, and system for obtaining a solution from a solid product are disclosed. A solid product is housed in a dispenser. A liquid is introduced into the housing of the dispenser to interact with the solid product to form a solution. To control the concentration of the formed solution, the turbulence of the liquid introduced to the dispenser is controlled and adjusted either manually or on a real time basis to account for varying characteristics of either or both of the solid product and the liquid. The dispenser will adjust the turbulence based on the characteristics to maintain a formed solution within an acceptable range of concentration. The concentrated solution can then be discharged from the dispenser to an end use application.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 24, 2017
    Assignee: Ecolab USA Inc.
    Inventors: Richard R. Carroll, John D. Morey, Andrew Schultz, Ryan Drake, John E. Thomas, Troy A. Anderson, Joshua J. Lanz
  • Patent number: 8945476
    Abstract: A method, apparatus, and system for obtaining a solution from a solid product are disclosed. A solid product is housed in a dispenser. A liquid is introduced into the housing of the dispenser to interact with the solid product to form a solution. To control the concentration of the formed solution, the turbulence of the liquid introduced to the dispenser is controlled and adjusted either manually or on a real time basis to account for varying characteristics of either or both of the solid product and the liquid. The dispenser will adjust the turbulence based on the characteristics to maintain a formed solution within an acceptable range of concentration. The concentrated solution can then be discharged from the dispenser to an end use application.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: February 3, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Richard R. Carroll, John D. Morey, Andrew Schultz, Ryan Drake, John E. Thomas, Troy A. Anderson, Joshua J. Lanz
  • Patent number: 8765054
    Abstract: Process for treatment of residual nucleic acids present on the surface of laboratory consumables. The process combines two treatment phases: (1) treatment with ethylene oxide in gaseous phase; then (2) treating the surface with hydrogen peroxide in liquid phase or in gaseous phase. The effect of this treatment is the avoidance of the amplification of residual nucleic acids, in particular during PCR or TMA reactions.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: July 1, 2014
    Assignee: EMD Millipore Corporation
    Inventors: Marie Pressel, Didier Metz
  • Patent number: 8668779
    Abstract: A method of simultaneously cleaning and disinfecting an industrial water system is described and claimed. The method involves the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. This cleaning and disinfecting method works in a variety of industrial water systems including cooling water systems.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: March 11, 2014
    Assignee: Nalco Company
    Inventors: Andrew J. Cooper, Jasbir S. Gill, Amit Gupta, Robert F. Kelly, Douglas G. Kelley, Eric R. Myers
  • Patent number: 8647567
    Abstract: Methods for introducing a substantially uniform concentration of a functional agent into a flowing stream of water using a shaped composition. The composition may be shaped and sized to be inserted into a device configured to be attached over the end of a faucet. The shaped composition comprises a dissolvable region including a functional agent (e.g., an anti-microbial sanitizing agent). A non-dissolvable region disposed adjacent to the dissolvable region may optionally be provided. The substantially non-dissolvable region remains substantially intact as the dissolving region is progressively dissolved, introducing the functional agent into a flowing stream of water.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 11, 2014
    Assignee: The Clorox Company
    Inventors: Evan Rumberger, William Ouellette, William L. Smith
  • Patent number: 8623148
    Abstract: Methods of cleaning a processing chamber with nitrogen trifluoride (NF3) are described. The methods involve a concurrent introduction of nitrogen trifluoride and a reactive diluent into the chamber. The NF3 may be excited in a plasma inside the chamber or in a remote plasma region upstream from the chamber. The reactive diluent may be introduced upstream or downstream of the remote plasma such that both NF3 and the reactive diluent (and any plasma-generated effluents) are present in the chamber during cleaning. The presence of the reactive diluent enhances the chamber-cleaning effectiveness of the NF3.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: January 7, 2014
    Assignee: Matheson Tri-Gas, Inc.
    Inventors: Glenn Mitchell, Robert Torres, Jr., Adam Seymour
  • Publication number: 20140000658
    Abstract: Cleaning compositions and methods of using such compositions. The compositions comprise oxidizing agent(s); weak acid(s), and surfactant(s) (e.g., a combination of short-chain non-ionic surfactant(s) and long-chain non-ionic surfactant(s) or a combination of short-chain anionic surfactant(s) and long-chain anionic surfactant(s)). The compositions can be used to clean objects such as reusable water containers, home seltzer-maker bottles, hydration bladders, coffee mugs, etc.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicant: CLEAN ETHICS
    Inventor: Justin Koehneke
  • Publication number: 20130239991
    Abstract: A composition for treating a water system to remove scale, microorganisms and biofilm, and corrosion by-products. The composition comprises chelating agents and a surfactant. Depending on the water system being treated, the composition may be a solid dissolved by water in the system being treated or may be a pre-mixed foam or aerosol. A treatment system particularly suitable for flowing water systems comprises a container for holding such a treatment composition and mixing it with a portion of water from the water system, a filter for removing solids dislodged during treatment, and a corrosion monitor. A method for using such a treatment composition comprises draining substantially all existing water in the water system, filling or rinsing the system with fresh water, contacting the treatment composition with substantially all parts of the water system, and draining the treatment composition from the system before resuming normal operations.
    Type: Application
    Filed: January 18, 2013
    Publication date: September 19, 2013
    Applicant: NCH Corporation
    Inventors: Adrian Denvir, David F. Vela, Christina B. Burton, Katrell D. Copeland, Scott M. Boyette, Robert C. Pearce, III
  • Patent number: 8518270
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 27, 2013
    Assignee: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8449685
    Abstract: A cover for a pedicure spa containing an automatic sanitation apparatus is disclosed. When activated, the cover automatically sprays disinfectant in a circular motion from a nozzle on the bottom of the cover. The interior surfaces of the pedicure basin are treated with the disinfectant solution. The pedicure basin is thereby efficiently and thoroughly sanitized.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: May 28, 2013
    Inventor: Joseph Anthony Veltri
  • Patent number: 8440264
    Abstract: According to one embodiment of the present invention, a method for preparing a brazed surface to receive a coating is disclosed. The method includes providing a brazed surface having a flux layer including a conversion coating and a powder component; and applying an aqueous solution containing a flux-removing agent to the surface to at least partially remove the powder component of the flux layer to obtain a treated brazed surface that is suitable for receiving a subsequent coating layer.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: May 14, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Kimberly Lazarz, Timothy V. Evans
  • Patent number: 8366939
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: February 5, 2013
    Assignee: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8246909
    Abstract: A method measures a property of a germicidal solution in an endoscope processor spectroscopically by placing a quantity of the solution into a cuvette and passing a light therethrough. A reservoir receives a quantity of the solution and bubbles are filtered out via a cross-flow filter prior to putting a sample therefrom into the cuvette for measuring.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: August 21, 2012
    Assignee: Ethicon, Inc.
    Inventors: Hal Williams, Yan Fang, Richard Jackson
  • Patent number: 8153019
    Abstract: Methods for preventing isotropic removal of materials at corners formed by seams, keyholes, and other anomalies in films or other structures include use of etch blockers to cover or coat such corners. This covering or coating prevents exposure of the corners to isotropic etch solutions and cleaning solutions and, thus, prevents higher material removal rates at the corners than at smoother areas of the structure or film from which material is removed. Solutions, including wet etchants and cleaning solutions, that include at least one type of etch blocker are also disclosed, as are systems for preventing higher rates of material removal at corners formed by seams, crevices, or recesses in a film or other structure. Semiconductor device structures in which etch blockers are located so as to prevent isotropic etchants from removing material from corners of seams, crevices, or recesses in a surface of a film or other structure at undesirably high rates are also disclosed.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: April 10, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Nishant Sinha, J. Neil Greeley
  • Patent number: 7883674
    Abstract: A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: February 8, 2011
    Assignee: United Technologies Corporation
    Inventor: He Huang
  • Patent number: 7857913
    Abstract: A cleaning compound for cleaning surfaces in a food processing environment includes at least one container, with each container including a peroxide and/or an alkaline reactant therein. The alkaline reactant is selected to raise the pH of the cleaning compound into the alkaline range when the peroxide and the alkaline reactant are mixed together. The cleaning compound may be a liquid or dry compound, which is applied to the surface to be cleaned.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: December 28, 2010
    Inventor: William E. Spindler
  • Patent number: 7846261
    Abstract: Methods for cleaning surface deposits, such as sulfidation deposits or dust particles, from a surface bounding an internal passage in a turbine engine component. The surface deposits are cleaned by placing a halogen-containing organic compound, such as a fluorine-containing organic compound, into the internal passage and heating the component and organic compound to chemically react the halogen-containing species in the liquefied and boiling organic compound with the deposits. The temperature is further elevated to vaporize the chemically-modified deposits, which are moved by mass transport through the internal passage and out of the turbine engine component. An optional protective coating, such as a chromium or aluminum coating, may be applied to the cleaned surface of the internal passage.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Aeromet Technologies, Inc.
    Inventors: Richard Patrick Chesnes, David C Fairbourn
  • Publication number: 20100237025
    Abstract: The present invention is related to a method and system for cleaning a media support structure in a filter cell in a liquid filter system, wherein a cleaning solution does not significantly enter a filter media zone. The method comprises supplying a cleaning solution to a filter cell to a level sufficient to submerge the media support structure, but not to significantly enter the filter media zone. Additionally, the cleaning solution level is monitored to ensure the cleaning solution does not significantly enter the filter media zone. Alternatively, the cleaning solution may be continuously recirculated and reintroduced to the filter cell during the cleaning operation.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Applicant: ITT WATER & WASTEWATER LEOPOLD, INC.
    Inventors: John L. Geibel, Eugene M. Vegso, Christopher J. Ball, Robert L. Laird, Thomas M. Getting, Dean T. Berkebile
  • Publication number: 20100237012
    Abstract: A method for cleaning process apparatus used for production of liquids, especially for cleaning filters, for example membrane filters. The apparatus is contacted with a solution of periodate. It is especially preferred that the cleaning process is carried out at a temperature between 15 and 95° C.
    Type: Application
    Filed: January 26, 2010
    Publication date: September 23, 2010
    Applicant: X-FLOW B.V.
    Inventors: Arie Cornelis Besemer, Elmar Van Mastrigt, André Mepschen
  • Patent number: 7624743
    Abstract: Methods are provided for increasing the temperature of a section of conduit used for the production or transmission of hydrocarbon. According to one aspect, the method includes the steps of: (a) forming a treatment fluid comprising: (i) a carrier fluid; and (ii) a first reactant and a second reactant; and (b) introducing the treatment fluid into a section of conduit used for the production or transmission of hydrocarbon. The first reactant and second reactant are selected for being capable of reacting together in an exothermic chemical reaction; and the first and second reactant are in at least sufficient concentrations in the carrier fluid to generate a theoretical heat of reaction of at least 1,000 kJ/liter of the treatment fluid. At least some of at least one of the first reactant and the second reactant is suspended in the carrier fluid in a solid form that is adapted to help control the release of the reactant into the carrier fluid.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: December 1, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Diptabhas Sarkar, Stephen T. Arrington, Ronald J. Powell, Ian D. Robb, Bradley L. Todd
  • Publication number: 20090200243
    Abstract: [Problem to be Solved] To provide a method of treating a sealing compound that can efficiently separate and recover a used sealing compound into rubber latex and a liquid constituent, and also simplify the treatment of the rubber latex and liquid constituent separated from the used sealing compound.
    Type: Application
    Filed: May 26, 2005
    Publication date: August 13, 2009
    Inventors: Shinichi Iwasaki, Rieko Iwasaki, Ryuji Izumoto, Daisuke Sugio
  • Patent number: 7513260
    Abstract: A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: April 7, 2009
    Assignee: United Technologies Corporation
    Inventor: He Huang
  • Patent number: 7375069
    Abstract: Methods, compositions and kits for masking and subsequent removal of oil, grease, rust and other stains from a variety of rough solid surfaces, including, but not limited to stone, concrete, asphalt, stucco brick, and ceramic. The methods include coating the stains with an opaque or translucent thin film of a composition that makes the stain practically indistinguishable against the background, exposing the coated stain to the elements, such as, sunlight, air, moisture, resulting in spontaneous transformation, degradation and subsequent removal of the stains from the solid surfaces. The compositions include a photocatalyst by itself or the photocatalyst combined with at least one of, a sensitizer, a dopant, a mediator, a co-reagent, a pigment and a binder. The role of a photocatalyst is to produce highly reactive species or radicals and initiate the degradation of a stain upon exposure to elements, such as, sunlight, air and ambient humidity. Artificial light sources can be used instead of sunlight.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: May 20, 2008
    Assignee: Research Foundation of the University of Central Florida
    Inventor: Nazim Z. Muradov
  • Patent number: 7293569
    Abstract: Compositions and methods for cleaning deposition systems utilizing alkylsilanes are described herein. In an embodiment, a method of cleaning a semiconductor fabrication system comprises flushing the system with a solvent comprising at least one alkylsilane. In another embodiment, a method of removing at least one chemical precursor from a semiconductor fabrication system comprises forcing a solvent containing at least one alkylsilane through the semiconductor fabrication system and dissolving the at least one chemical precursor in the solvent. The solvent may also contain mixtures of different alkylsilanes and other organic solvents.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: November 13, 2007
    Assignee: Air Liquide Electronics U.S. LP
    Inventors: Ravi Laxman, Ashutosh Misra, Jean-Marc Girard
  • Patent number: 7252096
    Abstract: On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: August 7, 2007
    Assignee: Nalco Company
    Inventors: Jasbir S. Gill, Amit Gupta
  • Patent number: 7252720
    Abstract: Prion infectivity adsorbed onto substrates (for example, chromatographic columns used to fractionate blood plasma) is removed by treatment with 2M sodium chloride. Optionally, the substrate is further washed with 0.1 M sodium hydroxide.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: August 7, 2007
    Assignee: Common Services Agency
    Inventors: Peter Reynolds Foster, Brenda Doreen Griffin, Ronald Vance McIntosh
  • Patent number: 7146990
    Abstract: A process is provided for cleaning a surface of an internal cavity of a gas turbine component having sulfidation or sulfur bearing deposits comprising: inserting into the internal cavity a fluoride salt; and heating the fluoride salt and the component in an inert atmosphere for a time and at a temperature to clean the sulfidation or sulfur bearing deposits on the surface. In a preferred embodiment the cleaned internal surface is then coated with a metallic coating.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: December 12, 2006
    Assignee: Chromalloy Gas Turbine Corporation
    Inventors: Ky D Ngo, David C. Fairbourn, Xuan Nguyen-Dinh
  • Patent number: 7115171
    Abstract: A method and cleaning composition for removing engine deposits from turbine components, in particular turbine disks and turbine shafts. This method comprises the following steps: (a) providing a turbine component having a surface with engine deposits thereon, wherein the turbine component comprises a nickel and/or cobalt-containing base metal; and (b) treating the surface of the turbine component with a cleaning composition to convert the engine deposits thereon to a removable smut without substantially etching the base metal of the turbine component. The cleaning composition comprises an aqueous solution that is substantially free of acetic acid and comprising: a nitrate ion source in an amount, by weight of the nitrate ion, of from about 470 to about 710 grams/liter; and a bifluoride ion source in an amount, by weight of the bifluoride ion, of from about 0.5 to about 15 grams/liter.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: October 3, 2006
    Assignee: General Electric Company
    Inventors: John Matthew Powers, William Clarke Brooks
  • Patent number: 7047985
    Abstract: The invention provides a method for the removal of contaminating materials from pipework, the contaminating materials comprising deposits on the pipework which cause a reduction in the effective internal diameter of the pipes and thereby effect a reduction in the rate of flow of a fluid through the pipework, the method comprising treating the contaminating materials with at least one carbamate salt. The methods is also suitable for the treatment of contaminating materials which have a particularly deleterious effect on fluid flow and comprise partial or total blockages of the pipework. The carbamate is preferably in the form of an aqueous solution, and a preferred carbamate salt is ammonium carbamate. The treatment may be carried out in the presence of an additive such as caesium carbonate or ammonium bicarbonate. Optionally the treatment may be accompanied by a pre-treatment or post-treatment with aid, this being followed by a water wash.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: May 23, 2006
    Assignee: British Nuclear Fuels PLC
    Inventors: Iain Stewart Dennis, Phillip Antony Mayhew
  • Patent number: 6991685
    Abstract: The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: January 31, 2006
    Assignee: Ecolab Inc.
    Inventors: Joseph I. Kravitz, Francis L. Richter, Duane J. Reinhardt, Gerald K. Wichmann
  • Patent number: 6982242
    Abstract: An aqueous detergent composition is provided containing phosphoric acid or salt thereof, an organic phosphate surfactant, a nonionic surfactant, and water. The aqueous detergent composition may be employed to improved the adhesion of a coating to a substrate. Also provided is a method of improving the adhesion of a coating to a substrate.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: January 3, 2006
    Assignee: Rohm and Haas Company
    Inventors: Audrey Brenda Liss, Joseph Martin Rokowski, Thomas James Ennis
  • Patent number: 6953507
    Abstract: The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 11, 2005
    Assignee: Ecolab Inc.
    Inventors: Joseph I. Kravitz, Francis L. Richter, Duane J. Reinhardt, Gerald K. Wichmann
  • Patent number: 6887597
    Abstract: A cleaner-passivator composition and method for treating a fuel cell cooling system are described. The cleaner-passivator comprises a complexing agent, a surfactant, a corrosion inhibitor, and a solvent. The cleaner-passivator reduces the contaminants circulating in the fuel cell coolant system that contribute to increasing conductivity in the fuel cell coolant. In addition, the passivator reduces the surface corrosion in the fuel cell system.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: May 3, 2005
    Assignee: Prestone Products Corporation
    Inventors: Bo Yang, Peter M. Woyciesjes, Filipe J. Marinho
  • Patent number: 6866048
    Abstract: This invention provides a method of treating a dry or processed fluid pipe line susceptible to the build-up of iron sulfide deposits by complexing the iron sulfide in the pipe lines. The method of the present invention introduces the composition on a continuous or a batch basis to a gas pipe line. The composition is made of a solution of 1) water, 2) [tetrakis(hydroxymethyl)phosphonium]sulfate or chloride, and 3) a soluble ammonium salt, such as ammonium chloride or the like.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: March 15, 2005
    Inventor: Mark Andrew Mattox
  • Patent number: 6846418
    Abstract: A process for treating acidic and metallic waste water, particularly the rinsing water and/or used acids from pickling plants. The process includes the step of adding an alkaline solution or gas to bind the free acids in the waste water, followed by separation of the waste water into a first partial stream with high metal content and a second partial stream with low metal content. To achieve a more economical embodiment, particularly in terms of favorable energy consumption, and also reduce the nitrate load as much as possible, the free acids are bonded by adding ammonia solution or gas, and the first partial stream with the high metal content is fed to a regeneration plant to undergo pyrohydrolytic treatment, preferably by spray roasting. The second stream can be recycled to a rinse station.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: January 25, 2005
    Assignee: Andritz AG
    Inventor: Jovan Starcevic
  • Patent number: 6840251
    Abstract: On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: January 11, 2005
    Assignee: Nalco Company
    Inventors: Jasbir S. Gill, Amit Gupta
  • Patent number: 6827090
    Abstract: Process for removing deposits from water-carrying systems and devices for water supply, or from their individual parts, in which the deposits are dissolved by means of an aqueous treatment solution and removed in dissolved form from the system or the device or their individual parts, wherein the deposits are dissolved by means of an aqueous treatment solution comprised of a combination of (i) a reducing agent, in particular in the form of a slat-like, reducing sulfur-oxygen compound, nitrogen-oxygen compound or phosphorous-oxygen compound, and (ii) a complexing agent having phosphonic acid groups or phosphonate groups or a complexing agent of the hydroxy acid type at pH values in the range of approximately 4.5 to 9.5, in particular from approximately 6.0 to 8.0.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: December 7, 2004
    Assignee: R. Späne KG
    Inventors: Michael Nurnberger, Robert Nusko, Georg Maier
  • Patent number: 6772771
    Abstract: In a steam cracking operation the formation of coke is a problem which needs to be overcome. While significant work has been done on decoking of furnaces little work has been done regarding transfer line exchangers. Coking of transfer line exchangers (TLE) may be reduced by injection of a solution containing at least one group 1 or 2 metal dichromate or dichromate and one or more of a group 1, 2 or 7 metal carbonate into the TLE.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 10, 2004
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Haiyong Cai, Michael C. Oballa, Andrzej Krzywicki, Ted Magtanong, Les Benum
  • Patent number: 6743299
    Abstract: A method of cleaning articles, such as infant feeding bottles is disclosed. The method provides for the use of alkali metal chloride, more particularly sodium chloride. The salt is deposited into the article to be cleaned, then water is added, and then the article is shaken to cause the crystalline substance to contact the interior walls of the container, thereby cleaning and sanitizing the interior of the article.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: June 1, 2004
    Inventors: Tony M. Barton, Ilene Cousin
  • Patent number: 6712079
    Abstract: The present invention relates to a process of cleaning the inner surfaces of a liquid-containing vessel with an automatic cleaning device, wherein said process is performed by said device and comprises the steps of applying a cleaning composition onto at least portions of the inner surfaces of said liquid-containing vessel and rinsing at least portions of the inner surfaces of said liquid-containing vessel and wherein said automatic cleaning device is a non-floating device (8) placed on the bottom of said vessel.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 30, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Katia Bredo, Alejandro Cedeno, Nicolas Rémy Denis Pochart, Michela Ratti, Joris Jozef Gustaaf Tack
  • Patent number: 6679274
    Abstract: A method is taught for cleaning photographic chemistry product fouling, including a proteinaceous portion and a non-proteinaceous portion from a liquid delivery system. The method comprises the steps of displacing resident product solution in the piping with water, hydrodynamically cleaning the piping system using two-phase flow a first time, chemically cleaning the piping system with an aqueous bleach solution to remove the proteinaceous portion of the photographic chemistry product fouling, chemically cleaning the piping system with a functionalized ethyl acetate solvent to remove the non-proteinaceous portion of the photographic chemistry product fouling, and hydrodynamically cleaning the piping system using two-phase flow a second time after the chemical cleaning steps to remove remaining residue. Preferably, after the second hydrodynamic two-phase flow cleaning step, the delivery system is subjected to a high purity water rinse.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: January 20, 2004
    Assignee: Eastman Kodak Company
    Inventors: David W. Gruszczynski, Douglas E. Margevich, Mark Fornalik
  • Patent number: 6638902
    Abstract: The present invention relates to a solid enzyme cleaning composition in which the enzyme is stable in the presence of mixtures of carbonate and bicarbonate at alkaline pH, and methods employing this composition. The enzyme cleaning composition preferably employs weight ratios of carbonate and bicarbonate to stabilize one or more enzymes in a solid, a concentrate, and/or a use composition, and at temperatures higher than ambient.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: October 28, 2003
    Assignee: Ecolab Inc.
    Inventors: James J. Tarara, Sally K. Swart, Tareasa Lynn Bradley, Reid Rabon, Denise Chandler
  • Patent number: 6623695
    Abstract: An anticorrosive, penetration enhancing composition for cleaning decontaminating and rinsing includes electrochemically activated (ECA) water as the decontamination agent. The anticorrosive decontamination composition has, as the anticorrosive agent, a compound or mixture of compounds capable of inhibiting corrosion of various metals used in sterilization decontamination and rinsing systems and objects such as medical instruments. Preferred anticorrosive compounds include phosphates, azoles, and sulfates. Other additives, including wetting agents, are added to reduce the surface energy of the ECA water. This reduced surface energy permits the ECA water to penetrate into objects of complex design thus permitting complete decontamination of the treated object.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: September 23, 2003
    Assignee: Steris Corporation
    Inventors: Paul S. Malchesky, Christopher M. Fricker
  • Publication number: 20030155158
    Abstract: Hydrocarbon contaminants in drill cuttings generated in an oil drilling operation are removed by mixing the drill cuttings with an agglomerant to produce a pre-treatment mixture; heating to vaporize the hydrocarbon contaminants under a condition in which vapor entrainable particles of the drill cuttings are agglomerated by the agglomerant, and caking of drill cuttings is inhibited; drill cuttings having a reduced content of the contaminant are removed, and vaporized hydrocarbons having a reduced content of vapor entrainable particles are recovered. In this way, the particulate content of vapors escaping from the drill cuttings is reduced.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 21, 2003
    Inventors: Kazimierz S. Szymocha, Barry E. McIntyre
  • Patent number: 6551411
    Abstract: A detergent composition useful for cleaning away a resin remaining in a molding machine after molding, comprising a thermoplastic resin, water and wollastonite.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: April 22, 2003
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Mikihiko Ito, Noriko Yamauchi
  • Patent number: 6524397
    Abstract: A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal hydrogencarbonate to remove it.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 25, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Shigeru Sakurai, Masaharu Emoto, Hachiro Hirano, Makoto Yoshida, Hiroaki Noda, Michihiro Kawano
  • Patent number: 6494218
    Abstract: A scale dissolver composition and method for using the composition is provided. Broadly, the dissolver compositions are formed by adding a base such as ammonium hydroxide to a mixture comprising a salt of a chelating agent, a carbonate, and a component selected from the group consisting of organophosphorus compounds, carboxylic acids, and mixtures thereof. The preferred organophosphorus compound is aminotrismethylidine diphosphonic acid while the preferred chelating agent salt is EDTA tetrasodium salt. In use, the dissolver composition is preferably heated to a temperature of from about 100-170° F. and then contacted with the target scale. The compositions are particularly useful for removing barium sulfate and calcium sulfate scales from gas and oil well and pipeline equipment in an efficient and cost-effective manner.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: December 17, 2002
    Assignee: Jacam Chemicals, L.L.C.
    Inventors: Gene H. Zaid, Beth Ann Wolf
  • Patent number: 6484733
    Abstract: Used deNOx or dedioxin catalytic converters are regenerated by washing the catalyst with a solution of surface-active substances in a liquid. At the same time, metal compounds are added for creating active centers.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 26, 2002
    Assignee: Integral Umwelt-und Anlangentechnik Gesellschaft m.b.H
    Inventors: Richard Budin, Krzysztof Krotla, Hermann Rabitsch
  • Patent number: RE40050
    Abstract: A composition for a cleaning-in-place system is described. The composition has a halogen dioxide and a optionally hydroxide and does not require the use of a detergent to display excellent cleaning and disinfecting properties on processing equipment such as the equipment found in breweries, dairy plants and carbonated beverage plants.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: February 12, 2008
    Assignee: JohnsonDiversey, Inc.
    Inventors: Michael Francis Coughlin, David Christopher Cole, Charles Allen Crawford