For In-place Cleaning Of Stationary Apparatus Patents (Class 510/234)
  • Patent number: 6998376
    Abstract: In this process, the inner surfaces of the installations which have been in contact with the coffee are treated with an aqueous alkaline solution containing at least one peroxidic compound.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: February 14, 2006
    Assignee: Ecolab GmbH & Co. OHG
    Inventors: Thomas Tyborski, Werner Lüdecke
  • Patent number: 6992053
    Abstract: The present invention encompasses a composition, suitable for cleaning hard surfaces, comprising a bleaching agent and a silicone glycol.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: January 31, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Laura Cermenati, Vincenzo Tomarchio
  • Patent number: 6916776
    Abstract: A restaurant cleaning towel made from a substrate such as a woven, nonwoven, or knit fabric. A sanitizer release polymer composition comprising at least one cationic (or alternatively, nonionic) surfactant is bound to the surface of the towel. Preferably, the cationic surfactant is present in the sanitizer release polymer composition in an amount of about 1 to about 10 weight percent, based on a total weight of the composition. The composition may also include at least one nonionic co-surfactant in combination with the cationic surfactant. The towel also includes a color label on its surface to identify the area of the restaurant in which the cleaning towel is to be utilized. The towel may optionally include an international icon, a tactile label, and/or a label in a plurality of languages identifying the area where the towel is to be utilized.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 12, 2005
    Assignee: Svendsen Limited Partnership
    Inventor: Jeffrey S. Svendsen
  • Patent number: 6911421
    Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: June 28, 2005
    Assignee: NICCA USA, Inc.
    Inventor: Kazu Ikebata
  • Patent number: 6799585
    Abstract: A process is presented for cleaning fermentation or storage tanks with an enzyme-containing formulation containing one or more laccases, peroxidases, oxireductases, transferases, isomerases, lyases, and ligases or a mixture thereof. The process provides improved cleaning results, water consumption, and waste water pollution.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: October 5, 2004
    Assignee: Ecolab GmbH Co. oHG
    Inventors: Marion Lengling, Harald Kluschanzoff
  • Patent number: 6794352
    Abstract: A restaurant cleaning towel made from a substrate such as a woven, nonwoven, or knit fabric. A sanitizer release polymer composition comprising at least one cationic (or alternatively, nonionic) surfactant is bound to the surface of the towel. Preferably, the cationic surfactant is present in the sanitizer release polymer composition in an amount of about 1 to about 10 weight percent, based on a total weight of the composition. The composition may also include at least one nonionic co-surfactant in combination with the cationic surfactant. The towel also includes a color label on its surface to identify the area of the restaurant in which the cleaning towel is to be utilized. The towel may optionally include an international icon, a tactile label, and/or a label in a plurality of languages identifying the area where the towel is to be utilized.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 21, 2004
    Inventor: Jeffrey S. Svendsen
  • Patent number: 6750186
    Abstract: A tablet or pellet for cleaning mineral deposits from the interior of a dishwasher machine is placed within the machine, and the machine is run through its normal dishwashing cycle. The pellet or tablet is formed of a mixture of a binder matrix and a chelating agent capable of carrying out chelation solubilization on the mineral deposits. The pellet or tablet withstands substantial dissolving during the initial rinse cycle or cycles, and then dissolves to provide a pH no greater than 6 during the wash cycle.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: June 15, 2004
    Inventor: Robert Black
  • Patent number: 6686324
    Abstract: A low-foaming cleaning solution and dry particulate formulation which can be diluted with water, deionized water, or mixtures thereof, to form the cleaning solution. The cleaning solution has an alkaline pH, which is preferably from about 8 to about 11.5 and consists essentially of at least one low foaming surfactant in a concentration of from about 0.005% to about 40% w/w of the total solution, at least one active oxygen releasing compound in an amount effective to produce a hydrogen peroxide concentration of from about 0.005% to about 50% w/w of the total solution, at least one builder in a concentration of from about 0.001% to about 50% w/w of the total solution, and at least one diluent selected from the group consisting of water, deionized water, and mixtures thereof.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: February 3, 2004
    Assignee: Virox Technologies, Inc.
    Inventors: Jose A. Ramirez, Nancy M. A. Sullivan
  • Patent number: 6667290
    Abstract: An article for sanitizing a surface with a sanitizing solution while maintaining the concentration level of a sanitizer in the sanitizing solution at an effective concentration level. A substrate that absorbs and holds the sanitizing solution is treated with a sanitizer release polymer composition. The substrate may be a woven, nonwoven, or knit fabric, a foam or sponge, or the like. The sanitizer release polymer composition may include a cationic or nonionic surfactant or binder that is operable to maintain the concentration level of the sanitizer at the effective level during prolonged periods of use.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: December 23, 2003
    Inventor: Jeffrey S. Svendsen
  • Patent number: 6630434
    Abstract: A low viscosity aqueous cleaning composition provides increasing viscosity upon dilution which provides a high viscosity diluted cleaning composition having solvents compatible with the rod micelle thickener and the cleaning system that clings for an extended period of time in a thickened form containing cleaning system ingredients that can penetrate and remove hard baked-on soils on vertical surfaces in cleaning units. The composition contains active cleaning ingredients (acid, alkaline and enzyme) that, in combination with thickening systems, provide the useful properties. The thickened materials can be applied on cold or hot surfaces and can successfully penetrate, soften and remove baked-on food soil on a variety of surfaces including oven walls, doors and grills, baking dishes, utensils, etc.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: October 7, 2003
    Assignee: Ecolab Inc.
    Inventors: Michael E. Besse, Richard O. Ruhr, Gerald K. Wichmann, Timothy A. Gutzmann
  • Publication number: 20030100462
    Abstract: A cleaning wipe comprising a water insoluable substrate, wherein the substrate is a nonwoven fabric which is impregnated with a cleaning composition.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 29, 2003
    Applicant: Colgate-Palmolive Company
    Inventors: Bing Suazon, Dawne Barry, Karen Wisniewski, Barbara Thomas
  • Patent number: 6564813
    Abstract: A process is presented for cleaning fermentation or storage tanks with an enzyme-containing formulation containing one or more laccases, peroxidases, oxireductases, transferases, isomerases, lyases, and ligases or a mixture thereof. The process provides improved cleaning results, water consumption, and waste water pollution.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: May 20, 2003
    Assignee: Ecolab GmbH & Co. OHG
    Inventors: Marion Lengling, Harald Kluschanzoff
  • Patent number: 6534075
    Abstract: An antimicrobial and antiviral composition in powder form or in the form of a two part liquid concentrate for washing and sanitizing foods, food surfaces, food ware, process waters, animal quarters, and animal carcasses is described. The composition may also be used to reduce the microbial and viral population on animals; reducing human pathogenic microbes, reducing opportunistic pathogenic microbes on eggs, and treating skin diseases. The composition includes three reactive species which in solution form an oxidizing species, and optionally a food grade acid source. The reactive species include a natural source of a quaternary or protonizable nitrogen compound which is acceptable on foods, an oxidant and a halide source.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: March 18, 2003
    Assignee: Ecolab Inc.
    Inventors: Robert D. P. Hei, Kim R. Smith, Polly D. Laugen, Bruce R. Cords, Shaun P. Kennedy
  • Patent number: 6528468
    Abstract: The present invention relates to a pickling agent for the chemical conversion coating of a heat exchanger which is capable of cleaning the complicated structure comprising fins and tubes of a heat exchanger in preparation for the successful formation of a chemical conversion film, a method of pickling a heat exchanger, a method of treating a heat exchanger comprising said pickling method, and a heat exchanger produced by using said treating method. The present invention provides pickling agent for the chemical conversion coating of a heat exchanger which comprises an acidic aqueous solution containing nitric acid and/or sulfuric acid and at least one metal and/or metal oxoanion salt derived from any metal selected from the group consisting of iron, nickel, cobalt, molybdenum and cerium.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: March 4, 2003
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masahiko Matsukawa, Kentaro Saito, Toshio Inbe, Kasuyoshi Yamasoe
  • Patent number: 6489278
    Abstract: The invention relates to a A highly alkaline or mildly alkaline detergent composition having enhanced cleaning properties. The detergent which combines a source of alkalinity and with a blend of nonionic surfactants that enhances cleaning waxy-fatty soils. This blend of surfactants shows surprising cooperation in reducing surface tension and comprises a nonionic or amphoteric surfactant and a silicone containing surfactant.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: December 3, 2002
    Assignee: Ecolab Inc.
    Inventors: Steven E. Lentsch, Victor F. Man, Deborah A. Ihns, Helmut K. Maier, Rhonda K. Schulz
  • Patent number: 6479454
    Abstract: A peroxygen antimicrobial composition is provided comprising an amine oxide and peroxygen compound. The combination of the two components produces an effective antimicrobial composition, providing a more potent biocide than can be obtained by using these compounds separately. Other components can be added to the composition such as peracetic acid, acetic acid, hydrotrope coupling agents, etc. The composition can be used to sanitize various surfaces such as hard surfaces found in food processing, food service and health care industries as well as to sanitize the surfaces of food and in the treatment of water.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: November 12, 2002
    Assignee: Ecolab Inc.
    Inventors: Kim R. Smith, Robert D. P. Hei
  • Patent number: 6472199
    Abstract: Improved, non-chlorinated systems and methods for removing soils from hard surfaces are provided wherein such surfaces are initially contacted with a first aqueous use dispersion including a protease enzyme, followed by contact the surface with a second aqueous acidic use dispersion. The enzyme dispersion preferably includes a polyol such as propylene glycol and in use is heated to a temperature up to about 120° C. The acid dispersion may include a surfactant and is also used in a heated condition. The two-component systems of the invention can be used for CIP treatment of dairy or other equipment in lieu chlorinated cleaning agents.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: October 29, 2002
    Assignee: West Agro, Inc.
    Inventor: Alan R. Monken
  • Patent number: 6472358
    Abstract: A sanitizing composition comprising at least one aliphatic short chain antimicrobially effective C5 to C14 fatty acid or mixture thereof, at least one carboxylic weak acid and a strong mineral acid which may be nitric or a mixture of nitric and phosphoric acids.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: October 29, 2002
    Assignee: EcoLab Inc.
    Inventors: Francis Lawrence Richter, Duane Joseph Reinhardt, Richard R. Staub, Teresa C. Podtburg
  • Patent number: 6423675
    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: November 23, 1999
    Date of Patent: July 23, 2002
    Assignee: Diversey Lever, Inc.
    Inventors: Michael Francis Coughlin, David Christopher Cole, Charles Allen Crawford
  • Patent number: 6391836
    Abstract: A method and biological cleaning system are provided for cleaning substrate surfaces of oils and/or greases using a biological cleaning system which utilizes a pre-treatment bath and/or post-treatment bath as part of the cleaning system. The pre-treatment and/or post-treatment baths are compatible with the biological cleaning bath and during operation of the system, the used pre-treatment and/or post-treatment baths are recycled to the biological cleaning solution for biodegradation. A system is provided in which none of the pre-treatment, post-treatment or biological cleaning baths need expensive waste disposal. Replenishment pre-treatment and/or post-treatment baths as well as biological cleaning baths are added as needed to the biological cleaning system. Other treatment baths may be added directly to the biological cleaning bath with or without pre- or post-treatment for specific purposes such as a detergent phosphating bath used in the biological cleaning tank to provide a cleaned phosphated part.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 21, 2002
    Assignee: BioClean, USA
    Inventors: Juan Haydu, Timothy P. Callahan, Zoltan F. Mathe, Mikael Norman
  • Patent number: 6368610
    Abstract: A disinfecting composition which is bactericidal and effective to kill yeast includes (a) at least one a monocarboxylic acid of formula R—COOH, in which R a saturated or unsaturated, straight- or branched-chain alkyl radical comprising from 6 to 12 carbon atoms; (b) a strong inorganic acid; (c) at least one organic acid of formula R′CH2—CO2H, in which R′ is H or OH; (d) at least one anionic surfactant; (e) at least one solubilizing agent consisting of a compound of formula R″O(CH2CH2O)x—H, in which R″ represents a C2 to C6 alkyl radical, x represents an integer from 1 to 3; and (f) water.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: April 9, 2002
    Assignee: SOPURA S.A.
    Inventors: Nicolas Velings, Ferdinand Herman, Paul-Eric Loncin
  • Publication number: 20020037821
    Abstract: Detergent compositions containing at least two surfactants, one having a cloud point of less than about 30° C., especially below about 14° C., and another having a cloud point of greater than about 30° C., especially above about 40° C.
    Type: Application
    Filed: January 19, 2001
    Publication date: March 28, 2002
    Inventor: Lance L. Renfrow
  • Patent number: 6310024
    Abstract: Disclosed in the present application is a composition that is useful for rust and/or corrosion removal that contains a reducing agent, a chelating agent, a surfactant, and a dispersant. Disclosed also are processes for using this composition in aqueous systems and metal surface treatment.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: October 30, 2001
    Assignee: Calgon Corporation
    Inventors: Jasbir S. Gill, Monica A. Yorke
  • Patent number: 6268324
    Abstract: A low viscosity aqueous cleaning composition provides increasing viscosity upon dilution which provides a high viscosity diluted cleaning composition having solvents compatible with the rod micelle thickener and the cleaning system that clings for an extended period of time in a thickened form containing cleaning system ingredients that can penetrate and remove hard baked-on soils on vertical surfaces in cleaning units. The composition contains active cleaning ingredients (acid, alkaline and enzyme) that, in combination with thickening systems, provide the useful properties. The thickened materials can be applied on cold or hot surfaces and can successfully penetrate, soften and remove baked-on food soil on a variety of surfaces including oven walls, doors and grills, baking dishes, utensils, etc.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: July 31, 2001
    Assignee: Ecolab Inc.
    Inventors: Michael E. Besse, Richard O. Ruhr, Gerald K. Wichmann, Timothy A. Gutzmann
  • Patent number: 6218349
    Abstract: The present invention provides for a composition suitable for removing proteinaceous material comprising water, an emulsifier, a chelating agent, one or more mineral acids, and a surfactant; wherein: the emulsifier is a polyether nonionic emulsifier or an amine oxide; the chelating agent is an alkylaminophosphonic acid, a hydroxyalkylphosphonic acid, or an alkylphosphonic acid carboxylic acid; the one or more mineral acids are present in an mount such that the pH of the composition is less than about 4.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: April 17, 2001
    Assignee: Ecolab, Inc.
    Inventors: Joseph I. Kravitz, Richard O. Ruhr, Michael E. Besse
  • Patent number: 6204231
    Abstract: An aqueous alkaline composition for cleaning equipment used in the food industry wherein the composition contains potassium hydroxide or a mixture of potassium hydroxide and sodium hydroxide and wherein the potassium hydroxide is present in an amount of at least 20% by weight, based on the weight of hydroxide present in the composition. A process for regenerating the cleaning solution is also disclosed.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: March 20, 2001
    Assignee: Henkel Kommandigesellschaft Auf Aktien
    Inventors: Anja Patten, Ralf Krack, Dietmar Rossner
  • Patent number: 6197738
    Abstract: A nontoxic sanitizing cleaner comprising an organic acid having a pH less than 3, a chelating agent, and a surfactant. The invention also contemplates a buffering agent in the cleaner. In a preferred embodiment, the sanitizing cleanser is in the form of a solution containing 94% citric acid, 4% EDTA, 1% sodium laurel sulfate, and 1% monosodium phosphate, by weight. The invention also contemplates using the nontoxic sanitizing cleaner in a cosmetic lotion, and in processes for cleaning and sanitizing food processing equipment.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: March 6, 2001
    Inventor: Robert R. Regutti
  • Patent number: 6197739
    Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are manufactured in the form of a concentrate which is diluted with water and used. The cleaning materials are made in a two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a two part system contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: March 6, 2001
    Assignee: Ecolab Inc.
    Inventors: Thomas R. Oakes, Kristine K. Wick, Bruce R. Cords, Sandra L. Bull, Francis L. Richter
  • Patent number: 6191091
    Abstract: The cleaning compound for a water dispenser includes four ingredients: a) N′alkyl dimethyl Benzyl Ammonium Chloride, within the range of 0.08 to 0.1% by weight; b) citric acid, of about 20% by weight of the total solution; c) propylene glycol (food grade), about 4% by weight; and d) sodium hydroxide (food grade), in sufficient quantity to neutralize the solution to a pH range preferably between 2.6 and 4.5. During the initial clean-up steps, and contrarily to prior art cleaning methods, the cleaning method does not require complete purge of the inner water reservoir from drinking water, due to the tacky nature of the cleaning compound which can still be effective in diluted state and in a submerged environment.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: February 20, 2001
    Inventor: Marcel Raymond
  • Patent number: 6071356
    Abstract: The present invention relates to methods of cleaning-in-place soiled process equipment comprising circulating a solution comprising a protease and a lipase for a sufficient period of time to permit action of the enzymes.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: June 6, 2000
    Assignee: Novo Nordisk Als
    Inventor: Hans Sejr Olsen
  • Patent number: 6051615
    Abstract: A process for reducing foam in an alkyl polyglycoside-containing cleaning composition by adding a defoaming-effective amount of an alkyl polyglycoside having the general formula I:R.sub.1 O(Z).sub.a Iwherein R.sub.1 is a monovalent organic radical having from 16 to 18 carbon atoms; Z is a glucose residue having 5 or 6 carbon atoms; a is a number having a value of from 1 to about 6, to a cleaning composition containing an alkyl polyglycoside having the general formula II:R.sub.2 O(Z).sub.a IIwherein R.sub.2 is a monovalent organic radical having from 8 to 16 carbon atoms; Z is a glucose residue having 5 or 6 carbon atoms; a is a number having a value of from 1 to about 6.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: April 18, 2000
    Assignee: Henkel Corporation
    Inventors: Stephen F. Gross, John Frederick Hessel
  • Patent number: 6043207
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: March 28, 2000
    Assignee: Charvid Limited Liability Co.
    Inventor: Charles Bullick Talley
  • Patent number: 6034048
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and an alkali salt in both hydrated and anhydrous forms. A preferred cleaning composition further includes a surfactant.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: March 7, 2000
    Assignee: Charvid Limited Liability Co.
    Inventor: Charles Bullick Talley
  • Patent number: 6017864
    Abstract: We have found that long standing problems relating to the stability of organic materials in alkaline detergents, including the reversion or hydrolysis of condensed phosphate sequestrants in alkaline solid detergent compositions can be alleviated by the use of an organic composition having vicinal hydroxyls. Such a solid block detergent can be manufactured by a process in which a source of alkalinity, a functional material including a condensed phosphate sequestering agent, an organic compound having two vicinal hydroxyl groups, are combined in a pourable composition or liquid. Such a liquid can be introduced into a plastic capsule and solidified. During manufacture and solidification, we have found that the vicinal hydroxyl compound prevents substantial hydrolysis or reversion of the condensed phosphate maintaining effective hardness ion sequestration during the use of the detergent. The stabilizer can also stabilizes color, chlorine content and dispensing properties.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: January 25, 2000
    Assignee: Ecolab Inc.
    Inventors: Kent R. Brittain, Bernard J. Heile, Helmut K. Maier, Charles A. Hodge, G. Jason Wei
  • Patent number: 5904161
    Abstract: Cleaning compositions, particularly automatic dishwashing detergent compositions, comprising a stability-enhanced amylase and bleach-improving materials are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits. The automatic dishwashing compositions comprise stability-enhanced amylase enzymes and one or more bleach-improving compounds, such as organic peroxides, quaternary substituted bleach activators, quaternary substituted peracids and manganese or iron bleach catalysts.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: May 18, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Saroj Rai, William Michael Scheper, Lucille Florence Taylor, Gregory Stephen Caravajal, James Charles Theophile Roger Burckett-St. Laurent, Kakumanu Pramod
  • Patent number: 5898024
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: April 27, 1999
    Assignee: Charvid Limited Liability
    Inventor: Charles Bullick Talley
  • Patent number: 5879470
    Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Liquid formulations comprising detergent surfactant, such as oleate, alcohol ethoxylates, etc., and neutralized phosphoric acid are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits, especially wax. Articles for applying the compositions to produce by spraying are disclosed. Use of the compositions for disinfectancy/sanitization of produce and cleaning/disinfectancy/sanitization of non-food inantimate surfaces are disclosed.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: March 9, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Bruce Prentiss Murch, Brian Joseph Roselle, Kyle David Jones, Keith Homer Baker, Thomas Edward Ward, Toan Trinh
  • Patent number: 5866523
    Abstract: A cleaning composition and method of use are disclosed. The composition comprises a mixture of a ketone, at least one glycol ether, water and optionally a surfactant. The composition when applied to substrates coated with resinous coatings is effective for removing the coating from the substrate.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: February 2, 1999
    Assignee: BetzDearborn Inc.
    Inventors: Umit Turunc, Patricia A. Popowich
  • Patent number: 5863345
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled surfaces such as food fryers, baking pans, high temperature pasteurizers, beer kettles and similar equipment that normally requires caustic soda based cleaners to clean. The present invention is also useful in cleaning ceramics such as restaurant grade ceramic china plates and platters. The present invention is particularly useful in cleaning brass and aluminum parts and equipment without causing corrosion damage. Further, since the cleaning composition of the present invention is not based on caustic soda, the composition is not considered hazardous. Further, the cleaning composition of the present invention dissolves readily in water, providing a solution that can be used in mechanical sprayers, soak-tanks and clean-in-place equipment. Also the cleaning composition may be effectively used at lower temperatures than caustic cleaning agents.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: January 26, 1999
    Assignee: Charvid Limited Liability Company
    Inventor: Charles Bullick Talley
  • Patent number: 5861366
    Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are preferably manufactured in the form of a solid block or powder concentrate which is diluted with water and used. The cleaning materials are made in a one or two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a one or two part system, contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: January 19, 1999
    Assignee: Ecolab Inc.
    Inventors: Deborah A. Ihns, William Schmidt, Francis R. Richter
  • Patent number: 5858941
    Abstract: The invention is a method of removing soils containing oils and fats from food processing surfaces. The method includes the steps of formulating a wash composition from a two-part concentrate. The concentrate first part includes a source of alkalinity and water. The concentrate second part includes a quaternary ammonium compound. After formulation, the wash composition has a major portion of water, from about 100 ppm to 20,000 ppm of quaternary ammonium compound, and an alkali source present in a concentration to provide a pH of from about 10 to 14. After formulation, the wash composition may be used by applying it to the food processing surface. Optionally, the wash composition may also include a chelating agent and a second nonionic or anionic detersive agent.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: January 12, 1999
    Assignee: Ecolab Inc.
    Inventors: Thomas R. Oakes, Timothy A. Gutzmann, Cynthia Lee Ross, Bruce E. Schmidt
  • Patent number: 5789361
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: August 4, 1998
    Assignee: Charvid Limited Liability Co.
    Inventor: Charles Bullick Talley
  • Patent number: 5786319
    Abstract: A concentrated detergent formulation effective to remove grease includes a glycol ether solvent system in combination with a high concentration of a surfactant system stably dispersed in water. The surfactant system is preferably a combination of an hydrotrope and a nonionic surfactant with a concentration preferably in the range of 7% or greater. The glycol ether solvent system can be any of a number of glycol ethers with dipropylene glycol n-butyl ether and dipropylene glycol monomethyl ether preferred. The formulation can be used at high concentrations to effectively remove baked-on grease in deep fryers and clean parking lots and can be used at a lower concentration as a presoak and even at a more dilute concentration for general purpose degreasing and spray and wipe cleaner. The product is low alkaline and non-corrosive.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: July 28, 1998
    Assignee: Diversey Lever, Inc.
    Inventors: Kimberly M. Pedersen, Paul A. Pappalardo
  • Patent number: 5783542
    Abstract: A two-part enzyme-based cleaning system useful in clean-in-place operations to remove proteinaceous soils from dairy equipment is described. The system comprises two liquid concentrates stored in separate containers, the concentrates being diluted and mixed for use.A. The first concentrate consists of:i) 1.5 to 7.5 percent by weight of a source of alkalinity selected from the sources of hydroxide based alkaline compositions;ii) 1 to 16 percent by weight of a water conditioner selected from the group consisting of polyacrylic acids and polyphosphates; andiii) balance water.B. The second concentrate consists of:i) 5 to 45 percent by weight of an enzyme stabilizing blend of an alkali salt of a (C.sub.6 to C.sub.12) fatty acid and a linear (C.sub.8 -C.sub.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: July 21, 1998
    Assignee: Diversey Lever, Inc.
    Inventor: Carol A. Rouillard
  • Patent number: 5770555
    Abstract: A process for preparing stable aqueous cleaning concentrate compositions containing high concentrations of alkali and polymers useful as scale-inhibiting cleaning additives is disclosed. Water-soluble polymer additives useful for preparing the stable cleaning concentrates are polymers of acrylic acid, and optionally maleic acid, and selected allyloxy monomers. The storage-stable cleaning concentrates are especially useful in providing cleaning formulations for automatic washing systems, such as bottle washing and clean-in-place operations.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: June 23, 1998
    Assignee: Rohm and Haas Company
    Inventor: Barry Weinstein
  • Patent number: 5733342
    Abstract: Hydroxamic acids and hydroxamic acid ethers I and II ##STR1## where Z.sup.1 and Z.sup.2 are --NH --OY, --NR.sup.1 --OY or --OX, where in the case of (I) at least one of Z.sup.1 or Z.sup.2, and in the case of (II) Z.sup.1 is --NH --OY or --NR.sup.1 --OY, andR.sup.1 is C.sub.1 -C.sub.18 -alkyl,X is hydrogen, alkali metal, ammonium or substituted ammonium, andY is hydrogen, alkali metal, ammonium, substituted ammonium or C.sub.1 -C.sub.18 -alkyl, andL is a C.sub.1 -C.sub.100 linker which can also carry oxygen and nitrogen functional groups,with the exception of N,N-bis(carboxymethyl)-2-aminoacetohydroxamic acid.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: March 31, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Greindl, Alexander Kud, Volker Schwendemann, Michael Kneip, Elisabeth Kappes, Richard Baur, Juergen Schneider, Birgit Potthoff-Karl, Alfred Oftring
  • Patent number: 5672578
    Abstract: Limescale removing compositions contain a low level of surfactant, i.e., less than about 1% and maleic acid and have a pH of from about 0.1 to about 4.5. The surfactant can be anionic, nonionic, amphoteric, or cationic, but is preferably cationic. The composition can be used neat, or diluted, by applying it to the surface to be treated, leaving it to react, and then rinsing.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: September 30, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Michel Jean Carrie, Eddy Vos
  • Patent number: 5663132
    Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled surfaces such as food fryers, baking pans, high temperature pasteurizers, beer kettles and similar equipment that normally requires caustic soda based cleaners to clean. The present invention is also useful in cleaning ceramics such as restaurant grade ceramic china plates and platters. The present invention is particularly useful in cleaning brass and aluminum parts and equipment without causing corrosion damage. Further, since the cleaning composition of the present invention is not based on caustic soda, the composition is not considered hazardous. Further, the cleaning composition of the present invention dissolves readily in water, providing a solution that can be used in mechanical sprayers, soak-tanks and clean-in-place equipment. Also the cleaning composition may be effectively used at lower temperatures than caustic cleaning agents.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: September 2, 1997
    Assignee: Charvid Limited Liability Company
    Inventor: Charles Bullick Talley
  • Patent number: 5603862
    Abstract: There disclosed a boiler compound which comprises as the effective components thereof: (A) metabisulfurous acid or metabisulfites; (B) aliphatic dicarboxylic acids or salts thereof represented by the general formula:M.sup.1 OOC--(CH.sub.2).sub.n --COOM.sup.,wherein M.sup.1 and M.sup.2 are each a hydrogen atom, a sodium atom, a potassium atom or an ammonium group and n is an integer of 1 to 10; and optionally (C) a water-soluble polymer for scale inhibitor. The boiler compound is safe for human health, has excellent stability, can be used as a liquid formulation having anticorrosion activity (activity of eliminating oxygen) or both of anticorrosion activity and antiscale activity and exhibits enhanced anticorrosion activity by increasing concentration of sulfite ion which is an oxygen scavenger.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: February 18, 1997
    Assignee: Kurita Water Industries Ltd.
    Inventors: Shiro Taya, Takayasu Ueda, Moriyasu Itoh
  • Patent number: RE38262
    Abstract: We have found an alkaline warewashing detergent composition that can contain a critical amount of a nonionic rinse agent that when used in automatic warewashing machines permits the use of a potable water rinse without the addition of a separate rinse agent. Sufficient residual nonionic surfactant from the alkaline detergent remains on the surface ware and internal machine and rack surfaces after washing to promote adequate sheeting in the rinse cycle. The residual nonionic surfactant on internal surfaces dissolves in the rinse water to create an effective aqueous rinse agent. The nonionic rinse agents can be a single nonionic for both foam reduction cleaning and sheeting or can be a blend of nonionic materials providing these functions. The detergent can be in the form of a particulate, pelletized or block solid.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: October 7, 2003
    Assignee: Ecolab Inc.
    Inventors: John J. Rolando, Terry J. Klos