Essentially Pure Water Environment Patents (Class 422/14)
  • Patent number: 10519360
    Abstract: A composition useful as corrosion inhibitor formulation for application in heavy brine systems, comprising at least one amidoamine; at least one sulfur synergist; at least one phosphate ester. In a preferred embodiment, the composition comprises additionally formulation bonding surfactant; and/or at least one solvent system.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 31, 2019
    Assignee: CLARIANT INTERNATIONAL LTD.
    Inventors: Nihal U. Obeyesekere, Thenuka Ariyaratna, Jonathan James Wylde
  • Patent number: 9598295
    Abstract: The present invention concerns a process for treating water and the use of calcium carbonate in such a process. In particular, the present invention is directed to a process for remineralization of water comprising the steps of (a) providing feed water having a concentration of carbon dioxide of at least 20 mg/l, preferably in a range of 25 to 100 mg/l, and more preferably in a range of 30 to 60 mg/l, (b) providing an aqueous slurry comprising micronized calcium carbonate, and (c) combining the feed water of step (a) and the aqueous slurry of step (b) in order to obtain remineralized water.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 21, 2017
    Assignee: Omya International AG
    Inventors: Michael Skovby, Martine Poffet
  • Patent number: 9416034
    Abstract: A method and an apparatus for dispensing a pH balancing solution are provided. The apparatus includes a system having a chlorine generator with a power supply coupled to the chlorine generator, the chlorine generator servicing a body of water and chlorinating it. A pH monitoring and balancing unit is provided. The pH monitoring and balancing unit monitors and measures when power is supplied from the power supply to the chlorine generator to produce chlorine and thereby calculates an operational time for the chlorine generator.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: August 16, 2016
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: Bruce Johnson, Kevin Doyle, Keith Schulte
  • Patent number: 9131675
    Abstract: The invention relates to a method for decontaminating a mattress (14) or other effect of bed bugs comprising the steps of: Placing the mattress or other effect in a hermetically sealable container (10) of a size and shape commensurate with that of the mattress or other effect; Inserting an appropriate quantity of an oxygen scavenger (16) into the container; Hermetically sealing the container so as to prevent ingress of oxygen; and Leaving it for a time sufficient for the oxygen levels to be depleted to less than 0.2% and the bed bugs and their eggs and larvae to be destroyed. It also relates to a kit of parts for implementing the method.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 15, 2015
    Assignee: MidMos Solutions Limited
    Inventor: Colin Smith
  • Patent number: 9034209
    Abstract: Corrosion protection formulation comprising (A) from 0.01 to 5% by weight of alkylamine ethoxylates as surfactant component, (B) from 0.01 to 10% by weight of corrosion inhibitors, (C) from 0 to 0.3% by weight of thickeners, (D) from 5 to <75% by weight of freezing point-lowering alcohols selected from among alkanols, glycols, polyalkylene glycols and glycerol, (E) from 5 to 90% by weight of vegetable and/or fatty oils, (F) from 0 to 5% by weight of water and (G) from 0 to 5% by weight of conventional emulsifiers. The formulation is particularly suitable for protecting zinc or zinc-plated components or surfaces or cadmium or cadmium-plated metallic surfaces against corrosion caused by runway deicing compositions used at airports.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 19, 2015
    Assignee: BASF SE
    Inventors: Harald Dietl, Uwe Nitzschke
  • Patent number: 8951467
    Abstract: An embodiment prevents equipment fouling (deposition of unwanted material) in an oil recovery system via implementing passivation of metallic components. By preventing or at least slowing or inhibiting corrosion of equipment or components via passivation, such as passivating heat exchangers, metallic piping, and the like, an embodiment in turn reduces fouling thereof. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: Chemtreat, Inc.
    Inventors: Robert Wright Bedinger, III, Benjamin Edward Niemaseck, Mark Jason Puchovich, John Richardson
  • Publication number: 20150004054
    Abstract: There are provided methods of suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system, the method comprising: (a) introducing into the water stream a shot dose of a treatment composition comprising a corrosion inhibitor, the shot dose being introduced into the water stream over a first time period and the water stream having a first concentration of corrosion inhibitor during the first time period; (b) then reducing the amount of treatment composition that is introduced into the water stream; and (c) after the first time period, maintaining a second concentration of corrosion inhibitor in the water stream over a second time period, the second concentration being less than 25% of the concentration of corrosion inhibitor during the first time period.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: John RICHARDSON, Rajendra KALAKODIMI, DeAnn WILLS-GUY
  • Patent number: 8920714
    Abstract: A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 30, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John V. Kelley, II
  • Patent number: 8883073
    Abstract: A composition and method for inhibiting white rust formation on galvanized surfaces. The composition includes thiols, polymeric dithiocarbamates, and xanthates. The composition may be introduced onto the galvanized surface, especially in an industrial water system, using a variety of different methods or programs including integrating with current programs or developing a new program.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 11, 2014
    Assignee: Nalco Company
    Inventor: Srikanth S. Kidambi
  • Patent number: 8771593
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed or remove one or more active chemical species into or from the hot water system and further operable to change at least one system parameter.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Patent number: 8741151
    Abstract: The scale inhibitors in a variety of aqueous systems, or a part or sample thereof, also including one or more dissolved interfering ions, are separated therefrom and analyzed, such scale inhibitors comprising a polymer containing at least one anionic functional group, e.g., a strong acid functional group or a phosphonate or phosphate ester, and such analysis including treating these aqueous systems with a cationic substrate or a free cation.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: June 3, 2014
    Assignee: Rhodia UK Limited
    Inventors: Mike Hails, Chris Jones
  • Patent number: 8685257
    Abstract: A method for controlling microbial growth in potable water stored in a vessel having a metallic surface includes heating the metallic surface to a temperature between about 480° C. (900° F.) and about 870° C. (1600° F.), exposing the metallic surface to oxygen during heating to oxidize potential reduction sites on the metallic surface and charging potable water containing silver ions to the vessel. A vessel having a metallic surface is prepared for long-term storage of potable water containing silver ions by heating the metallic surface to a temperature between about 480° C. (900° F.) and about 870° C. (1600° F.) and exposing the metallic surface to oxygen during heating to oxidize electropositive metals on the metallic surface or by treating the metallic surface with an aqueous solution containing on oxidizing agent to oxidize potential reduction sites on the metallic surface.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: April 1, 2014
    Assignee: Hamilton Sundstrand Space Systems International, Inc.
    Inventors: Durwood Mace Beringer, John W. Steele, Timothy A. Nalette
  • Patent number: 8623273
    Abstract: Disclosed herein are methods of preventing or reducing scale formation or corrosion by combining at least one scale-forming fluid comprising at least one scaling compound with at least one anti-scale material chosen from at least one scale-adsorbent agent. The methods may reduce or prevent the formation of scale on surfaces of liquid-related process equipment, such as boilers and heat exchangers.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: January 7, 2014
    Assignee: Imerys Filtration Minerals, Inc.
    Inventor: Jie Lu
  • Patent number: 8535569
    Abstract: A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: September 17, 2013
    Assignee: Wincom, Inc.
    Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
  • Patent number: 8535568
    Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: September 17, 2013
    Assignee: Wincom, Inc.
    Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
  • Patent number: 8535567
    Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: September 17, 2013
    Assignee: Wincom, Inc.
    Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
  • Patent number: 8524088
    Abstract: Scaling is controlled in a cooling water system with CO2 based upon measurements of the cooling water's pH, alkalinity and Ca2+concentration.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 3, 2013
    Assignee: American Air Liquide, Inc.
    Inventors: Jeffrey E. Arbogast, Meenakshi Sundaram, Daniel D. Duarte
  • Patent number: 8444858
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 21, 2013
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8309021
    Abstract: The present invention generally relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.). In one embodiment, the present invention relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion, or roof portion, of an enclosure where such a system includes one or more dispensers designed to deliver at least one corrosion inhibitor to a system designed to protect a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.).
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: November 13, 2012
    Assignee: Northern Technologies International Corporation
    Inventors: Efim Ya Lyublinski, Yefim Vaks
  • Patent number: 8277726
    Abstract: A steam generation system comprises: an oxygenated water treatment (OWT) sub-system configured to generate water having oxidizing chemistry; a steam generation sub-system configured to convert the water having oxidizing chemistry into steam having oxidizing chemistry; an attemperator or other injection device or devices configured to add an oxygen scavenger to the steam having oxidizing chemistry to generate steam having less oxidizing or reducing chemistry; and a condenser configured to condense the steam having less oxidizing or reducing chemistry into condensed water.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 2, 2012
    Inventors: Steven C. Kung, Dennis K. McDonald
  • Patent number: 8246942
    Abstract: The invention relates to synergistic mixtures of o-phenylphenol with other microbicidally active compounds, such as bronopol (2-bromo-2-nitro-1,3-propanedial), 2-methyl-2H-isothiazol-3-one, 1,2-dibromo-2,4-dicyanobutane.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 21, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventors: Peter Wachtler, Martin Kugler
  • Patent number: 8236205
    Abstract: A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 7, 2012
    Assignee: Wincom, Inc.
    Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
  • Patent number: 8236204
    Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 7, 2012
    Assignee: Wincom, Inc.
    Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
  • Patent number: 8153057
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed one or more active chemical species into the hot water system.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 10, 2012
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Publication number: 20110056693
    Abstract: A method for reducing the deleterious effects of sulfate reducing bacteria in aqueous environments, particularly those in which metal materials are exposed to the microorganisms. A treatment solution containing rotenone is introduced into the aqueous environment. The rotenone is present in the treatment fluid in an amount which is sufficient to inhibit the growth of sulfate reducing bacteria on the metal material.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 10, 2011
    Inventor: Jon Wallace
  • Patent number: 7744775
    Abstract: In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid; and (d) at least one additional component comprising at least one of a C4-C22 aliphatic or aromatic mono- or dicarboxylic acid, a silicate and at least one of a silicone or a silicate stabilizing siloxane compound, and mixtures thereof. Also disclosed are heat transfer fluids that include about 5% to about 99% by weight of freezing point-depressing agent; about 1% to about 95% by weight of water; and the disclosed corrosion inhibitor composition. A method of reducing corrosion in a heat transfer system containing one or more components that contain magnesium or a magnesium alloy requires that the system and the magnesium containing components be in contact with the disclosed heat transfer fluid.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: June 29, 2010
    Assignee: Honeywell International Inc.
    Inventors: Bo Yang, Filipe J. Marinho
  • Publication number: 20100111756
    Abstract: Methods and compositions are provided for corrosion inhibition treatment of aqueous systems such as cooling water systems. The methods include conjoint use of a polyvalent metal ion, such as Al or Mn and a corrosion inhibitor/deposit control agent (DCA) to the water system. The corrosion inhibitor DCA agent may be an organic compound such as a hydroxyacid, phosphonocarboxylic acid, polyhydroxysuccinic acid, or polymaleic acid or anhydride.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rosa Crovetto, Claudia C. Pierce, Philip D. Deck
  • Patent number: 7635449
    Abstract: This invention concerns methods and apparatus for measuring oxidation reduction potentials of water in a hot water system at system temperature and pressure and methods of using the measured oxidation-reduction potential to monitor and control the addition of oxygen scavengers or oxygen to the system in order to maintain effective corrosion inhibiting concentrations of the oxygen scavengers or dissolved oxygen in the system.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: December 22, 2009
    Assignee: Nalco Company
    Inventors: Bruce R. Bailey, III, Peter D. Hicks
  • Patent number: 7585460
    Abstract: The invention relates to a method for inhibiting the biological acidification of water which is in contact with materials containing sulfur in reduced form or with elemental sulfur, susceptible to oxidation on the part of Thiobacilli, comprising putting said materials in contact with soluble inorganic salts at concentrations ranging from 0.4 normal to saturation.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: September 8, 2009
    Assignees: ENI S.p.A., Enitecnologie S.p.A.
    Inventors: Francesco Crescenzi, Antonella Crisari, Cesare Achille Piatti
  • Publication number: 20090180923
    Abstract: This application relates to a self-mixing container with a releasable internal vessel and its usage, wherein said self-mixing container comprises a container body, a double-walled external cap and an internal vessel, and through a corresponding production line, assembling of the self-mixing container with a releasable internal vessel will be realized. The invention makes it possible to pack and seal in a cold filling process at least two different materials in one and the same container body respectively.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 16, 2009
    Inventor: Xiao Gong
  • Patent number: 7524434
    Abstract: Methods of treating aqueous coolants in open circulating water cooling tower systems are provided. The methods including placing a controlled release additive composition in contact with an open circulating aqueous coolant in an open circulating water cooling tower system. The controlled release additive composition includes a core having at least one additive selected from corrosion inhibitors and scale inhibitors; and a coating, for example, a polymeric coating, substantially surrounding the core. The coating is substantially insoluble in the aqueous coolant, and is effective to slow the release of the at least one additive into the aqueous coolant.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: April 28, 2009
    Assignee: Dober Chemical Corporation
    Inventors: Thomas J. Blakemore, Yu-Sen Chen
  • Patent number: 7449101
    Abstract: In a method of reducing corrosion of a metal material, a substance such as semiconductor for generating an electric current by thermal excitation is coated or adhered on a metal material surface, to be exposed to a water having a high temperature of 150° C. or more, of a boiler and ducts or pipes, to which hot water heated by the boiler contacts, of a thermal electric power plant or a nuclear reactor structural material or ducts or pipes surrounding the reactor in a nuclear power plant.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: November 11, 2008
    Assignees: Kabushiki Kaisha Toshiba, The Tokyo Electric Power Company, Incorporated, Ishikawajima - Harima Heavy Industries Co., Ltd.
    Inventors: Masato Okamura, Yukio Henmi, Nagayoshi Ichikawa, Tetsuo Oosato, Seiji Yamamoto, Kazuo Murakami, Kenji Yamazaki, Junichi Takagi, Tadasu Yotsuyanagi, Shunichi Suzuki, Kenro Takamori, Mitsuru Sambongi, Yuichi Fukaya, Takasi Hirano
  • Patent number: 7407623
    Abstract: Lecithin and 2-bromo-2-nitropropane-1,3 diol (BNPD) are used to inhibit corrosion in boiler steam condensate systems. Aqueous steam condensate corrosion inhibiting compositions of these components are also disclosed. BNPD is also used as a preservative in lecithin containing and in other GRAS additive containing compositions.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: August 5, 2008
    Assignee: GE Betz, Inc.
    Inventors: Wilson K. Whitekettle, Rosa Crovetto
  • Patent number: 7399366
    Abstract: Several products and processes for preventing the occurrence of rust stains resulting from irrigation systems using water having iron ions, such as well water, and for cleaning off rust stains resulting from the use of said irrigation systems are disclosed. In one embodiment, ammonium sulfate is mixed with well water and then this mixture is mixed with incoming well water being sprayed on the surfaces. In another embodiment, ammonium bisulfate is used for the removal of rust stains. Then ammonium sulfate is mixed with the incoming well water being sprayed in the next cycle, to prevent rust formation.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: July 15, 2008
    Inventors: Paul Wegner, Frank J. Benasutti
  • Publication number: 20080145271
    Abstract: A composition and method for inhibiting white rust formation on galvanized surfaces. The composition includes thiols, polymeric dithiocarbamates, and xanthates. The composition may be introduced onto the galvanized surface, especially in an industrial water system, using a variety of different methods or programs including integrating with current programs or developing a new program.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Inventor: Srikanth S. Kidambi
  • Patent number: 7311877
    Abstract: The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in an industrial system, which includes adding to such fluid an effective corrosion controlling amount of a phosphoglyceride compound, optionally with emulsified soybean oil.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: December 25, 2007
    Assignee: General Electric Company
    Inventor: Rosa Crovetto
  • Patent number: 7273558
    Abstract: The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is achieved without reducing the quantity of hardness constituents contained in the liquid overall, without exchanging the hardness constituents in the liquid for other cations such as e.g. hydronium, sodium or potassium and without adding chemicals such as e.g. phosphates which inhibit scale formation to the liquid. Instead, scale formation is reduced by specifically shifting the molar distribution of the hardness constituents, especially the distribution proportions of the individual hardness constituents magnesium and calcium strontium and barium.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: September 25, 2007
    Assignee: Honeywell Technologies SARL
    Inventor: Bert Miecznik
  • Publication number: 20070207053
    Abstract: An automated salt dispensing system operating in conjunction with an at least one salt chlorine generator with a controller, an at least one water supply pipe with an at least one inflow and an at least one outflow, an at least one water diversion pipe, an at least one actuator in communication with the controller and controlling a control valve, said control valve being coupled to said at least one water supply and said at least one diversion pipe and diverting water into said water diversion pipe. The invention further includes an at least one brine solution holding tank; and an at least one pressure differential device, wherein the at least one brine solution holding tank is coupled to said at least one pressure differential device and the controller signals the actuator and the control valve diverts water from the water supply pipe into the water diversion pipe and the at least pressure differential device draws brine solution from an at least one brine solution holding tank into the water supply line.
    Type: Application
    Filed: December 13, 2006
    Publication date: September 6, 2007
    Inventors: Kevin Doyle, Keith Schulte, Bruce Johnson
  • Patent number: 7264770
    Abstract: A method for mitigating stress corrosion cracking of a component exposed to a high temperature water in a high temperature water system is provided. The method comprises the steps of lowering corrosion potential conditions to a desired low corrosion potential in the high temperature water environment; and introducing a first material comprising zinc into the high temperature water environment, such that the desired low corrosion potential facilitates transport of the first material into cracks in a structure communicative with the high temperature water environment.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: September 4, 2007
    Assignee: General Electric Company
    Inventors: Peter Louis Andresen, Young-Jin Kim, Sam Hettiarachchi, Thomas Pompilio Diaz, Thomas Martin Angeliu, Martin Mathew Morra
  • Patent number: 7220382
    Abstract: The use of an isomer of anthracene disulfonic acid as an inert fluorescent tracer is described and claimed. The utility of this type of inert fluorescent tracer in boiler systems to trace unwanted carryover of boiler water into a steam line is also described and claimed.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: May 22, 2007
    Assignee: Nalco Company
    Inventors: Martin R. Godfrey, John E. Hoots
  • Patent number: 7179308
    Abstract: This invention pertains to certain novel colorant compounds containing one or more ethylenically-unsaturated, photopolymerizable radicals that may be copolymerized (or cured) with ethylenically-unsaturated monomers to produce colored compositions such as colored acrylic polymers. Suitable compositions having the present colorants copolymerized therein include, e.g., polymers produced from acrylate and methacrylate esters, colored polystyrenes, and similar colored polymeric materials derived from other ethylenically-unsaturated monomers. The present invention also pertains to processes for preparing the photopolymerizable colorant compounds. The ethylenically unsaturated colorant compounds may be suitable for use in coatings that are applied to wood, glass, metal, thermoplastics and the like.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: February 20, 2007
    Assignee: Eastman Chemical Company
    Inventors: Jason Clay Pearson, Max Allen Weaver, Jean Carroll Fleischer, Greg Alan King
  • Patent number: 7144549
    Abstract: An electric submersible pump has one or more components coated with a biocide-incorporated coating for the purpose of controlling the activity of bacteria. The portions exposed to well fluid are coated for inhibiting bacteria from growing. Both centrifugal and progressing cavity pumps are applicable.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: December 5, 2006
    Assignee: Baker Hughes Incorporated
    Inventor: Dan L. Adams
  • Patent number: 7122148
    Abstract: A methods of the present invention for inhibiting silica scale formation and corrosion in aqueous systems where soluble silica residuals (SiO2) are maintained in excess of 200 mg/L, and source water silica deposition is inhibited with silica accumulations as high as 4000 mg/L (cycled accumulation) from evaporation and concentration of source water. The methods of the present invention also provides inhibition of corrosion for carbon steel at corrosion rates of less than 0.3 mpy (mils per year), and less than 0.1 mpy for copper, copper alloy, and stainless steel alloys in highly concentrated (high dissolved solids) waters. The methods of the present invention comprise pretreatment removal of hardness ions from the makeup source water, maintenance of electrical conductivity, and elevating the pH level of the aqueous environment. Thereafter, specified water chemistry residual ranges are maintained in the aqueous system to achieve inhibition of scale and corrosion.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 17, 2006
    Assignee: Water Conservation Technologies International
    Inventors: Dan A. Duke, John L. Kubis, John P. Wetherell
  • Patent number: 6998092
    Abstract: A methods for inhibiting silica scale formation and corrosion in aqueous systems where soluble silica (SiO2) can be maintained at residuals below 200 mg/L, but more preferably maintained at greater than 200 mg/L as SiO2, without silica scale and with control of deposition of source water silica accumulations as high as 4000 mg/L (cycled accumulation) from evaporation and concentration of source water. The methods of the present invention also provide highly effective inhibition of corrosion for carbon steel, copper, copper alloy, and stainless steel alloys. The methods of the present invention comprise pretreatment removal of hardness ions from the makeup source water, maintenance of electrical conductivity, and elevating the pH level of the aqueous environment. Thereafter, specified water chemistry residual ranges are maintained in the aqueous system to achieve inhibition of scale and corrosion.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: February 14, 2006
    Assignee: Water Conservation Technologies International
    Inventors: Dan A. Duke, John L. Kubis
  • Patent number: 6986817
    Abstract: A method of automatic cleaning of cooking cavities of cooking equipment for food processing includes the introduction of steam at a temperature of at least 100.deg. C. from a supply line and nozzle into a cooking cavity for a time period depending on the degree of disinfection desired. The cooking cavity is rinsed with the steam condensate; and the supply line and nozzle are flushed with demineralized water.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: January 17, 2006
    Assignee: Convotherm Elektogerate GmbH
    Inventors: Lutz Riefenstein, Dario Manicardi
  • Patent number: 6811747
    Abstract: The present invention relates to water treatment chemical formulations, and more particularly to chemical formulations used to treat water containing halogens as a sanitizing agent. The water treatment chemical formulations contain cyanuric acid and an alkali metal molybdate or silicate as an anticorrosion agent.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: November 2, 2004
    Assignee: Bioquest, LLC
    Inventor: Michael A. Silveri
  • Patent number: 6793883
    Abstract: A method and system for reducing stress corrosion cracking in a hot water system, such as a nuclear reactor, by reducing the electrochemical corrosion potential of components exposed to high temperature water within the structure. The method includes the steps of: providing a reducing species to the high temperature water; and providing a plurality of noble metal nanoparticles having a mean particle size of up to about 100 nm to the high temperature water during operation of the hot water system. The catalytic nanoparticles, which may contain at least one noble metal, form a colloidal suspension in the high temperature water and provide a catalytic surface on which a reducing species reacts with least one oxidizing species present in the high temperature water. The concentration of the oxidizing species is reduced by reaction with the reducing species on the catalytic surface, thereby reducing the electrochemical corrosion potential of the component.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: September 21, 2004
    Assignee: General Electric Company
    Inventors: Peter Louis Andresen, Thomas Martin Angeliu, Young Jin Kim, Thomas Pompilio Diaz, Samson Hettiarachchi
  • Publication number: 20040151618
    Abstract: A method of increasing the conductivity of water by mixing sodium benzoate with tap water at various concentrations. A sodium benzoate solution, in low doses is not toxic and can be consumed by humans and animals. Some embodiments of this invention are further improved by combining the water having increased conductivity with coatings that will cause the solution to adhere to the surfaces of organic and inorganic material. The increased conductivity solution can be used to reduce rust, corrosion and mold as well as the resulting offensive odors caused by mold. This product has many uses in industrial processes to prevent rust and mold and to reduce undesirable odors, for example a process for recycling newsprint and other paper containing ink.
    Type: Application
    Filed: October 15, 2003
    Publication date: August 5, 2004
    Inventors: Bernard Bendiner, T. James Halpin
  • Publication number: 20040151619
    Abstract: An agent and process for the corrosion protection treatment of a metal surface are provided.
    Type: Application
    Filed: December 11, 2003
    Publication date: August 5, 2004
    Inventors: Heike Quellhorst, Alina M. Koch, Patrick Droniou, Marian Pawlik
  • Publication number: 20040104176
    Abstract: A method is provided for the treatment of water so as to reduce or destroy micro-organisms therein as well as other causes of skin diseases or waterborne diseases in human beings and animals, wherein the water is passed through a magnetic field being presented by a permanent magnet showing an energy product (BH)max of more than 20 kJ/m3 to which the water is exposed and a coercive force Hc of more than of about 200 kA/m at 25° C.
    Type: Application
    Filed: November 24, 2003
    Publication date: June 3, 2004
    Inventor: John Nikolaj Hvarre