Fire-extinguishing Patents (Class 252/2)
  • Patent number: 7247263
    Abstract: The invention is directed to a system which allows for the rapid application of a water immobilizing dispersion in sufficient quantities to increase the fire protective and wetting characteristics of water. This system also increases the evaporative cooling and quenching effects of water. The primary constituents of the composition of this system are water, purified Attapulgite clay, and an environmentally safe salt, e.g., magnesium sulfate.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: July 24, 2007
    Assignee: ITC Minerals & Chemicals
    Inventors: Dennis C. Parker, Anthony W. Carignano, David L. Ruff, Robert J. Purcell
  • Patent number: 7223351
    Abstract: Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or more of nitrogen, argon, helium and carbon dioxide. In an exemplary aspect the extinguishing mixture includes an extinguishing compound, a diluent gas and water.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: May 29, 2007
    Assignee: Great Lakes Chemical Corporation
    Inventors: Vimal Sharma, W. Douglas Register, James Harris, Thomas F. Rowland, Mark Cisneros
  • Patent number: 7216722
    Abstract: Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or more of nitrogen, argon, helium and carbon dioxide. In an exemplary aspect the extinguishing mixture includes an extinguishing compound, a diluent gas and water.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: May 15, 2007
    Assignee: Great Lakes Chemical Corporation
    Inventors: Vimal Sharma, W. Douglas Register, James Harris, Thomas F. Rowland, Mark Cisneros
  • Patent number: 7207392
    Abstract: Methods are provided for a provision of hypoxic hypercapnic and hypoxic hypocapnic fire-extinguishing compositions for continuous use in human occupied environments. Breathable fire preventative atmospheres can be created using air separation and having increased or decreased carbon dioxide content.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: April 24, 2007
    Assignee: FirePass IP Holdings, Inc.
    Inventor: Igor K. Kotliar
  • Patent number: 7172709
    Abstract: A foam concentrate provides a fire-fighting composition when mixed with water so that the fire-fighting composition does not form a stable seal on cyclohexane and meets UL 162, Class B performance criteria for at least one of AFFF agents and fluoroprotein (FP) agents without requiring organic fluorine. The concentrate is formed from water and a high molecular weight acidic polymer (HMWAP) and a coordinating salt.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: February 6, 2007
    Assignee: Chemguard, Inc.
    Inventor: Kirtland P. Clark
  • Patent number: 7163642
    Abstract: The invention relates to compositions that prevent expansion of a fire, suppress existing fire, as well as methods of preparing and using such compositions. The composition is comprised of water, pseudo-plastic high yield suspending agent and starch. Compositions may contain additional functional agents, such as rheological, wetting, foaming, coloring, chelating, antimicrobial and stabilizing agents. In the description of the present invention, all composition modifications are referred to as compositions. The composition, an augmentation of water, exhibits the characteristics of a sag resistant aqueous gel in the tank, but has shear thinning capacity, allowing the composition to be pumped or sprayed as easily as water. At the point of impact, when the sprayed composition is again at rest, it instantly reverts to a sag resistant aqueous gel. The composition also forms an intumescent, surface char layer upon contacting a fire.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: January 16, 2007
    Inventors: James Alroy E. Hagquist, Robert M. Hume, III, Terrance L. Lund, Roderick I. Lund
  • Patent number: 7135125
    Abstract: A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: November 14, 2006
    Assignee: Chemguard Incorporated
    Inventor: Kirtland P. Clark
  • Patent number: 7122704
    Abstract: The present invention relates to new fluoroketone compounds from the groups monobromoperfluoroketones, monohydromonobromoperfluoroketones, (perfluoroalkoxy)monobromoperfluoroketones, (fluoroalkoxy)monobromoperfluoroketones, and monochloromonobromoperfluoroketones. These fluoroketone compounds have utility in preventing, controlling and extinguishing fire. These fluoroketone compounds have further utility as additives to reduce or eliminate the flammability of normally flammable working fluids such as refrigerants, foam blowing agents, solvents, aerosol propellants, and sterilants.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: October 17, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mario J. Nappa, Velliyur Nott Mallikarjuna Rao, Allen C. Sievert
  • Patent number: 7083742
    Abstract: A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrically nonconductive, and have short atmospheric lifetimes, zero ozone-depletion potential, and low global warming potentials. The agents comprise at least one fluoroiodocarbon agent satisfying the general formula CaHbBrcCldFeIfNgOh, wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 18; and f is between and including 1 and 2, either neat or mixed with additives selected from the group consisting of: alcohols, esters, ethers, fluoroethers, hydrocarbons, hydrofluorocarbons, and perfluorocarbons.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: August 1, 2006
    Assignee: JSN Family Limited Partnership #3
    Inventors: Jonathan Shelley Nimitz, Lance Harrell Lankford
  • Patent number: 7070704
    Abstract: Disclosed is an environment-friendly, pH-neutral, loaded stream extinguishant and a method for preparing the same. The extinguishant is prepared from a mixture of a fire extinguishable component, an organic acid, a surfactant and water. It is very effective in controlling A class fires, as well as showing excellent flame retardance. Also, the extinguishant is neutral in pH so as to neither corrode extinguisher parts, nor affect soil negatively. It can be also applied to portable extinguishers.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: July 4, 2006
    Assignee: Fire & Tech Co., Ltd.
    Inventors: Jung Kang, Doo-Whan Kang, Chang-Woo Lee, Jae-Dong Jung
  • Patent number: 7033526
    Abstract: A composition which retards the spread of fire, protects assets at risk from fire damage and emits a material which aids in extinguishing the fire. The composition may be either in the form of a gel or a foam and may be used to protect any sort of object, such as personal property, real property or even humans, from fire. The gel form of the composition contains urea or a urea derivative that retains water and releases CO2 upon heating. In addition, a rheology modifier containing carboxyl groups is also employed. The foam form of the composition contains the urea or urea derivative and the rheology modifier, along with a foam generator such as sodium bicarbonate and citric acid. A method of retarding fire comprises the coating of an item with the fire retardant such that the retardant protects the item from the fire and aids in extinguishing the fire by releasing carbon dioxide.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: April 25, 2006
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Edmund W. Figiel, Robert E. Byrne, John E. Orloff, David R. Nass
  • Patent number: 7011763
    Abstract: A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: March 14, 2006
    Assignee: Chemguard Incorporated
    Inventor: Kirtland P. Clark
  • Patent number: 7005082
    Abstract: A foam concentrate provides a fire-fighting composition when mixed with water so that the fire-fighting composition does not form a stable seal on cyclohexane and meets UL 162, Class B performance criteria for at least one of AFFF agents and fluoroprotein (FP) agents without requiring organic fluorine. The concentrate is formed from water and a high molecular weight acidic polymer (HMWAP) and a coordinating salt.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: February 28, 2006
    Assignee: Chemguard Incorporated
    Inventor: Kirtland P. Clark
  • Patent number: 7004261
    Abstract: A fire suppressant, fire suppressant mist, and method of atomizing a water mist for suppressing a fire are provided by in-situ atomization of water droplets within a fire using water-in-oil microemulsions. The discrete phase of emulsion is a low boiling point oil or water immiscible fluid additive combined with water and a surfactant or cosurfactant. Each dropet provides a microemulsion. During the heating of the microemulsion droplet inside the flame, the water immiscible fluid vaporizes and causes fragmentation of the water droplet, producing extremely small droplets useful in fire suppression.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: February 28, 2006
    Assignee: Nanomist Systems, LLC
    Inventor: Kayyani C. Adiga
  • Patent number: 6852853
    Abstract: Fire retardant compositions and methods of making and using the same are provided. The fire retardant compositions are comprised of at least one fire retardant component, including at least one ammonium polyphosphate and at least one biopolymer having a weight average particle diameter of less than about 100 microns. In a specific embodiment, the fire retardant composition is comprised of a xanthan biopolymer.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: February 8, 2005
    Assignee: Astaris LLC
    Inventors: Howard L. Vandersall, Gary H. Kegeler
  • Patent number: 6849194
    Abstract: Highly fluorinated, saturated, and unsaturated fluoroethers are efficient, economical, non-ozone-depleting fire extinguishing agents used alone or in blends with other fire extinguishing agents in total flooding and portable systems. Methods for producing ethers, halogenated ether intermediates, and fluoroethers are disclosed. Novel fluoroether compositions are disclosed. Fluoroether extinguishing mixtures, methods, and systems are disclosed.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 1, 2005
    Assignee: PCBU Services, Inc.
    Inventors: Mark Robin, Thomas F. Rowland, John Chien, Janet Boggs, Mitchel Cohn, Vicki Hedrick, Stephan Brandstadter
  • Patent number: 6828437
    Abstract: Fire retardant compositions and methods of making and using the same are provided. The fire retardant compositions are comprised of at least one fire retardant component, including at least one ammonium polyphosphate and at least one biopolymer having a weight average particle diameter of less than about 100 microns. In a specific embodiment, the fire retardant composition is comprised of a xanthan biopolymer.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: December 7, 2004
    Assignee: Astaris, LLC
    Inventors: Howard L. Vandersall, Gary H. Kegeler
  • Patent number: 6819237
    Abstract: An apparatus and fire protection system for detecting and extinguishing a spark, flame, or fire on a heat sensitive explosive object, which identifies, locates and relays vital information related to the particular endangered explosive object. The invention can be used to protect any heat sensitive object from thermal damage, explosive or not. Thermal energy activates a power supply, which powers the system, including a plurality of status sensor circuits that determine the status of the source of thermal energy. Each source of thermal energy is individually encoded to relay traits specific to the particular hazardous item, such as cook-off rate, type of energetic material and detonation temperature. Ultimately, all the information from the plurality of circuits and the EEPROM is relayed to personnel via the main system status display board. This permits personnel to become aware of a potential threat and monitor efforts to subdue the threat.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: November 16, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John E. Wilson, Matthew L. Boggs, Howard L. Bowman
  • Patent number: 6814880
    Abstract: A liquid foam extinguishing formulation comprising a water soluble ammonium salt, a film-forming amphoteric fluorine surfactant, a foam-forming amphoteric co-surfactant, and a frostproofing agent, wherein the formulation is a stable, storable, ready to use, and frostproof single solution.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: November 9, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Robert Graf, Stefan Keipl
  • Publication number: 20040217322
    Abstract: Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or more of nitrogen, argon, helium and carbon dioxide. In an exemplary aspect the extinguishing mixture includes an extinguishing compound, a diluent gas and water.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 4, 2004
    Inventors: Vimal Sharma, W. Douglas Register, James Harris, Thomas F. Rowland, Mark Cisneros
  • Publication number: 20040211932
    Abstract: The current invention relates to water-swellable polymers at least partially comprised of sulfonic acid group containing monomers as additives for fire extinguishing water, which exhibits an elevated NaCl *[sic] content, used in fire prevention and to combat fire.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 28, 2004
    Inventors: Jochen Houben, Erich Kuster, Martin Tennie
  • Publication number: 20040206514
    Abstract: Compositions and methods for emulsifying a petroleum product that has been spilled upon a portion of the earth's surface or that is burning are based upon use of a nonionic, primary surfactant composition comprising a first ethoxylated sorbitol oleate and, preferably, a second ethoxylated sorbitol oleate, and a nonionic, secondary surfactant that is capable of stabilizing and solubilizing the primary surfactant composition such that the resulting emulsifying compositions have a hydrophilic/lipophilic balance between about 12.0 and about 13.5.
    Type: Application
    Filed: December 4, 2003
    Publication date: October 21, 2004
    Inventor: Peter Riley
  • Patent number: 6780991
    Abstract: Fire retardant compositions and methods of making and using the same are provided. The fire retardant compositions are comprised of at least one fire retardant component, including at least one ammonium polyphosphate and at least one biopolymer having a weight average particle diameter of less than about 100 microns. In a specific embodiment, the fire retardant composition is comprised of a xanthan biopolymer.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: August 24, 2004
    Assignee: Astaris LLC
    Inventors: Howard L. Vandersall, Gary H. Kegeler
  • Patent number: 6740250
    Abstract: A biodegradable, non-toxic firefighting concentrate composition. The preferred compositions include a mixture of a C14-C18 5 mole ethoxylated tallow amine, 2 mole ethoxylated coconut amine, and 5 mole ethoxylated coconut amine, wherein the blend is neutralized with a C6 carboxylic acid; an aliquot of 33 parts is added to 3 parts of a 2 mole ethoxylated linear alcohol having 6 to 16 carbon atoms, and enough water to bring the total weight percentage to 70%. Ten to fifteen parts of sodium lauryl sulfate is added and the balance of water is added to bring the total up to 100%. The composition is also effective when mixed with glycol dimethyl ether, the incorporation of a filming protein based agent, dye, or foam forming materials. In addition, the composition is useful with soil bacteria for remediating soil contaminated with hydrocarbon fuel and for facilitating fuel dispersion and degradation within bacterial-action sewage systems.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: May 25, 2004
    Assignee: Hazard Control Technologies
    Inventors: Michael T. Greiner, Thomas G. Legare, III
  • Patent number: 6736989
    Abstract: The invention provides for a substantially non-aqueous, flame extinguishing composition for extinguishing a fire at the sight of a potential flame having a flurocarbon in admixture with a gelled powder additive having salts of weak acids which decompose at the temperature of the sight to reduce or eliminate HF released by the composition when used to extinguish flames.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: May 18, 2004
    Assignee: Powsus, Inc.
    Inventors: Harry E. Stewart, Donald B. MacElwee
  • Publication number: 20040089838
    Abstract: A liquid etchant and a method for roughening a copper surface each capable of providing copper with a roughened surface increased in acid resistance regardless of a chlorine ion in a short period of time, to thereby ensure firm adhesion between a copper conductive pattern and an outer layer material during manufacturing of a printed circuit board, resulting in the manufacturing being highly simplified. The liquid etchant includes a main component containing an oxo acid such as sulfuric acid and a peroxide such as hydrogen peroxide. Also, the liquid etchant includes an auxiliary component containing a tetrazole such as 5-aminotetrazole or the like, or a 1,2,3-azole. The liquid etchant permits a copper surface to be roughened in an acicular manner.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 13, 2004
    Applicant: Ebara Densan Ltd.
    Inventors: Yoshihiko Morikawa, Kazunori Senbiki, Nobuhiro Yamazaki
  • Publication number: 20040021125
    Abstract: The present invention relates to a slurry for chemical mechanical polishing, which contains a silica polishing material, an oxidizing agent, a benzotriazole-based compound, a diketone and water.
    Type: Application
    Filed: July 11, 2003
    Publication date: February 5, 2004
    Applicants: NEC ELECTRONICS CORPORATION, TOKYO MAGNETIC PRINTING CO., LTD.
    Inventors: Toshiji Taiji, Yasuaki Tsuchiya, Tomoyuki Ito, Kenichi Aoyagi, Shin Sakurai
  • Publication number: 20040021124
    Abstract: There is provided a composition of refrigerant mixtures for high back pressure condition, comprising propane, propylene or 1,1-difluoroethane and, optionally, additive selected from the group consisting of carbon dioxide, trifluoromethyl iodide and mixture thereof. The composition according to the present invention is environment-friendly and can be directly drop in the conventional refrigerator system adopting HCFC-22 refrigerant without any systemic change.
    Type: Application
    Filed: March 5, 2003
    Publication date: February 5, 2004
    Inventor: Seung-Yon Cho
  • Patent number: 6660698
    Abstract: Compositions and methods for emulsifying a petroleum product that has been spilled upon a portion of the earth's surface or that is burning are based upon use of a nonionic, primary surfactant composition comprising a first ethoxylated sorbitol oleate and, preferably, a second ethoxylated sorbitol oleate, and a nonionic, secondary surfactant that is capable of stabilizing and solubilizing the primary surfactant composition such that the resulting emulsifying compositions have a hydrophilic/lipophilic balance between about 12.0 and about 13.5.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: December 9, 2003
    Assignee: Hans Achtmann
    Inventor: Peter Riley
  • Publication number: 20030209685
    Abstract: Highly fluorinated, saturated, and unsaturated fluoroethers are efficient, economical, non-ozone-depleting fire extinguishing agents used alone or in blends with other fire extinguishing agents in total flooding and portable systems. Methods for producing ethers, halogenated ether intermediates, and fluoroethers are disclosed. Novel fluoroether compositions are disclosed. Fluoroether extinguishing mixtures, methods, and systems are disclosed.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 13, 2003
    Inventors: Mark Robin, Thomas F. Rowland, John Chien, Janet Boggs, Mitchel Cohn, Vicki Hedrick, Stephan Brandstadter
  • Patent number: 6645391
    Abstract: The invention is directed toward biodegradable, non-toxic firefighting concentrate compositions including a fluorescent type compound for foam visualization within the visible and ultraviolet light spectrum and a process for its use.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: November 11, 2003
    Assignee: Hazard Control Technologies
    Inventors: Michael T. Greiner, Thomas G. LeGare, III
  • Patent number: 6645390
    Abstract: A biodegradable, non-toxic firefighting concentrate composition. The preferred compositions include 4 to 40 parts of a tertiary amine having 2-10 ethoxy or other solubilizing groups per mol selected from the group consisting of one or more of a series of similar homologs or isomers of C16-C18 animal-based tallow amines and coconut amines, 1 to 15 parts of a carboxylic acid having 6 to 16 carbon atoms or homolog thereof; 1 to 6 parts of a C6-C16 alcohol or homolog thereof and 0 to 10 parts of C4 and lower alcohols or homologs thereof, and enough water to create a total of 100 parts by volume. The concentrate is usually diluted up to 100 times (v/v) with water, and is also effective when mixed with foam-forming materials. In addition, the composition is useful with soil bacteria for remediating soil contaminated with hydrocarbon fuel and for facilitating fuel dispersion and degradation within bacterial-action sewage systems.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: November 11, 2003
    Assignee: Hazard Control Technologies, Inc.
    Inventor: Ronald E. Thames
  • Publication number: 20030205689
    Abstract: A method of removing ruthenium silicide from a substrate surface which comprises exposing the ruthenium silicide surface to a solution containing chlorine and fluorine containing chemicals. In particular, said solution is designed to react with said ruthenium silicide film such that water-soluble reaction products are formed.
    Type: Application
    Filed: April 23, 2003
    Publication date: November 6, 2003
    Inventors: Brenda D. Kraus, Michael T. Andreas
  • Patent number: 6635187
    Abstract: A process is disclosed for producing compositions including (a) a compound selected from the group consisting of CHF2CF3, CHF2CHF2, CH2FCF3, CH3CF3, CH3CHF2, CH2FCF2CHF2 and CHF2CF2CF2CHF2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula: CnH2n+2-a-bClaFbOc wherein n is an integer from 1 to 4, a is an integer from 0 to 2n+1, b is an integer from 1 to 2n+2-a, and c is 0 or 1, provided that when c is 1 then n is an integer from 2 to 4, and provided that component (b) does not include the selected component (a) compound, wherein the molar ratio of component (b) to component (a) is between about 1:99 and a molar ratio of HF to component (a) in an azeotrope or azeotrope-like composition of component (a) with HF.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: October 21, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barry A. Mahler, V. N. Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 6620348
    Abstract: Fire retardant compositions comprise at least one ammonium polyphosphate, at least one suspending agent, and at least one metal ferrite. In specific embodiments, the compositions of the invention comprise zinc ferrite or magnesium ferrite.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: September 16, 2003
    Assignee: Astaris, LLC
    Inventors: Howard L. Vandersall, Gary H. Kegeler, George J. Matousek
  • Publication number: 20030159836
    Abstract: The object of the present invention is to provide a fire extinguishing agent that can extinguish fire and check the spread of fire by easily containing water therein by means of heat due to the fire and solidifying thereby adhering to a burning object; a fire extinguishing water and a method for extinguishing fire by using it. Concretely, the present invention relates to a fire extinguishing agent comprising a thermosensitive polymer that is water-soluble at a temperature not more than a specific preset temperature and that gels or solidifies by containing water therein by means of heat due to a fire which attains to a temperature not less than the preset temperature; a fire extinguishing water obtained by dissolving the fire extinguishing agent into water optionally with a flameproofing agent or other fire extinguishing fire agent; and a method for extinguishing fire using the fire extinguishing water.
    Type: Application
    Filed: March 3, 2003
    Publication date: August 28, 2003
    Inventors: Keizou Kashiki, Masatoshi Sumitani, Kojiro Sakae, Shigeru Komatsu, Takshi Maruyama, Yanfeng Wang
  • Publication number: 20030151021
    Abstract: Metal nitride and metal oxynitride extrusions often form on metal silicides. These extrusions can cause short circuits and degrade processing yields. The present invention discloses a method of selectively removing such extrusions. In one embodiment, a novel wet etch comprising an oxidizing agent and a chelating agent selectively removes the extrusions from a wordline in a memory array. In another embodiment, the wet etch includes a base that adjusts the pH of the etch to selectively remove certain extrusions relative to other substances in the wordline. Accordingly, new metal silicide structures can be used to form novel wordlines and other types of integrated circuits.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 14, 2003
    Inventors: Gary Chen, Li Li, Yongjun Jeff Hu
  • Publication number: 20030151020
    Abstract: Methods for manufacturing substrates with difficult to polish features using reverse mask etching and chemical mechanical planarization techniques.
    Type: Application
    Filed: July 11, 2002
    Publication date: August 14, 2003
    Applicant: Cabot Microelectronics Corporation
    Inventors: Jui-Kun Lee, Chris C. Yu, David G. Mikolas
  • Publication number: 20030146404
    Abstract: Use in etching or polishing of integrated circuits of fluorinated additives of formula (I):
    Type: Application
    Filed: January 31, 2003
    Publication date: August 7, 2003
    Applicant: Solvay Solexis S.pA.
    Inventors: Mario Visca, Alba Chittofrati, Fiorenza D'Aprile
  • Publication number: 20030132416
    Abstract: Disclosed are compositions suitable for the electrolytic stripping of tin and tin-alloys from a substrate as well as methods of stripping such tin and tin-alloys. The compositions are particularly suitable for the electrolytic stripping of lead-free tin alloys, and more particularly for stripping tin and tin-alloys from stainless steel substrates.
    Type: Application
    Filed: October 11, 2002
    Publication date: July 17, 2003
    Applicant: Shipley Company, L.L.C.
    Inventors: Irina Boguslavsky, Angelo Chirafisi, Michael P. Toben
  • Publication number: 20030132417
    Abstract: The method and apparatus are provided for preparing a slurry for a CMP apparatus with simple configuration with which mixing accuracy for the slurry is improved and measurement is automatically accomplished for as a small amount of additive. A slurry preparation apparatus for a CMP apparatus comprises a tank for preparing the slurry, a weight sensor provided to the tank, and a stock solution feeder for the slurry which feeds a stock solution for the slurry into the tank. The weight sensor measures the weight of the tank, and the amount of the slurry to be supplied is controlled according to the measurements.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 17, 2003
    Applicant: TOKYO SEIMITSU CO., LTD.
    Inventor: Shigeki Kobayashi
  • Patent number: 6527970
    Abstract: A microbiological fire-fighting foam formulation which comprises a bioremediating component and a surfactant, the bioremediating component consisting substantially of sporulating bacteria which are tolerant of the surfactant used. The surfactant selected being innocuous to the bioremediating component used both when the microbes are in a spore state and when activated, and the selected surfactants further being biodegradable by the microbes of the microbial solution. An improved embodiment comprises a fluorinated film forming foam surfactant to increase the fire fighting capabilities while retaining bioremediation capabilities. The improved formulation enables microbiological digestion to inert volatile organic compounds and hydrocarbons of the formulation or of the fuel for the fire that may be ablaze when the formulation is applied.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: March 4, 2003
    Assignee: Verde Environmental, Inc.
    Inventors: William L. Scogin, Charles S. Cox
  • Patent number: 6513602
    Abstract: A method and a device for producing a sufficient quantity of a fire suppressing gaseous product to substantially suppress a fire. The device has a first stage gas source containing a pyrotechnic gas generating material and a second stage gas source in fluid communication at a first location with an outlet of the first stage gas source and, at a second location, with an outlet for dispersing gas. The second stage gas source contains at least one liquified gas or supercritical carbon dioxide, where the first stage gas source is capable of providing a sufficient quantity of gas at a sufficiently high temperature to vaporize at least a portion of the liquified gas or supercritical carbon dioxide in the second stage gas source, thereby producing a fire suppressing gaseous output, which exits the device through the outlet for dispersing gas, in an amount sufficient to at least partially suppress a fire.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Universal Propolsion Company
    Inventors: Donald J. Lewis, Donald E. Olander, Michael C. Magenot
  • Patent number: 6511610
    Abstract: Composition consisting essentially of 55 to 94% R-125, 2.5 to 35% of R-134a and 3.5 to 25% by weight of DME, and its use as a refrigerant in a heat transfer system designed for R-22 and comprising, as lubricant, a mineral oil or an alkylbenzene oil.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: January 28, 2003
    Assignee: Atofina
    Inventors: Laurent Caron, GĂ©rard Guilpain
  • Patent number: 6495056
    Abstract: According to the present invention, there can be provided a protein foam fire-extinguishing chemical having foaming properties making it usable as a foam fire-extinguishing chemical even diluted at a concentration of 2% by volume or less. In the protein foam fire-extinguishing chemical according to the present invention, the protein hydrolyzates are contained in an amount of 25 to 40% by weight in terms of the solid content thereof, and one or more members selected from the group consisting of 2-methyl-2,4-pentanediol, 3-methyl-3-methoxy butanol, diethylene glycol monobutyl ether and diethylene glycol monoisopropyl ether are contained as the foaming assistant in an amount of 8 to 20% by weight.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: December 17, 2002
    Assignee: Yamato Protec Corporation
    Inventors: Daizo Kubo, Yasuyoshi Fukuda
  • Patent number: 6478979
    Abstract: Fire extinguishing compositions and methods for extinguishing, controlling, or preventing fires are described wherein the extinguishing agent is a fluorinated ketone having up to two hydrogen atoms, alone, or in admixture with a co-extinguishing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, and mixtures thereof.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: November 12, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Paul E. Rivers, Richard M. Minday, Fred E. Behr, Daniel R. Vitcak, Richard M. Flynn, Michael G. Costello, Michael J. Parent, John G. Owens, Zhongxing Zhang
  • Patent number: 6461530
    Abstract: A method for suppressing a fire at a burning material comprising delivering to said burning material (a) an inert gas and (b) a gaseous compound selected from the group consisting of a hydrofluorocarbon, an iodofluorocarbon, and a mixture thereof, gases (a) and (b) being delivered in a combined concentration sufficient to extinguish the fire.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 8, 2002
    Assignee: PCBU Services, Inc.
    Inventors: Mark L. Robin, W. Douglas Register, Thomas F. Rowland
  • Publication number: 20020130294
    Abstract: A sewage sludge fire suppressant consisting of a wet cake solids is used to extinguish fires in building structures or on forest lands.
    Type: Application
    Filed: January 30, 2001
    Publication date: September 19, 2002
    Inventor: Guillermo Almagro
  • Patent number: 6447697
    Abstract: A colorized fire retardant composition comprising a fire retardant and a colorant, wherein the colorant is an aqueous dispersion of a pigment formed by polymerizing at least one monomer in the presence of at least one dye. The composition is particularly useful in combating and controlling fires by discharging the composition towards the fuel, or potential fuel, of a fire.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: September 10, 2002
    Assignee: Astaris, LLC
    Inventor: Howard L. Vandersall
  • Publication number: 20020121622
    Abstract: Fire-fighting equipment utilizes a fire-extinguishing aerosol that is formed during burning of pyrotechnical composite. A pyrotechnical, aerosol-forming fire-extinguishing composite is formed with good deformation strength characteristics, low fire-extinguishing concentration and regulated burning velocity. The pyrotechnical aerosol-forming fire-extinguishing composite contains an oxidizer, a production process additive and burning binder formed by thermoplastic formaldehyde and phenol polycondensate, plasticized by dicarboxylic acid ester and reinforced by polytetrafluoroethylene. The composite is produced by mixing of formaldehyde and phenol polycondensate suspension in an organic solvent and polytetrafluoroethylene dispersion in dicarboxylic acid ester, mixing the resulting composition with an oxidizer and a production process additive with subsequent thermomechanical effect.
    Type: Application
    Filed: December 14, 2001
    Publication date: September 5, 2002
    Applicant: Techno-TM LLC
    Inventors: Dmitriy Leonidovich Rusin, Anatoliy Petrovich Denisyuk, Dmitriy Borisovich Michalev, Juriy Germanovich Shepelev