Dry, Combustion Type Patents (Class 252/5)
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Patent number: 11799153Abstract: The present disclosure discloses a battery casing, a method for manufacturing the same, and a device including a battery casing. A battery casing includes a casing body, a plurality of battery cells accommodated in the casing body, and a fire protection plate which is disposed inside the casing body at least corresponding to the plurality of battery cells and includes a thermal aerosol fire protection layer which includes an aerosol generating agent, wherein a total mass A of the aerosol generating agent in the casing body and a free space volume B of the casing body satisfy a relationship as represented by 0.03 g/L?A/B?8 g/L.Type: GrantFiled: December 20, 2021Date of Patent: October 24, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Tongxin Chang, Tianming Chen, Ruiqi Han, Zhiming Chen
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Patent number: 10905911Abstract: The present composition for extinguishant mainly comprises of composite A and compound B; wherein said Composite A further comprises Compound C or Compound C and e-glass fibre and Compound B is water or deionized water; wherein further, said Compound C is in turn synthetic hydrated calcium silicate of density 60 to 450 kg/m3 preferably 90 to 400 kg/m3; which includes range of Tobermorite, Xenotlite and Wollastonite; said Compound C contains negligible amounts of Fe2O3MgO and Al2O3. Said Composite A comprises of 93-96% Compound C and 7-4% e-glass fibre and Compound B is at room temperature. The wet composition of present composition for extinguishant comprises of 2% to 18% W/V of Composite A in Compound B, and dry composition for extinguishant comprises of Composite A:compound B=82-98%:18-2%.Type: GrantFiled: April 3, 2017Date of Patent: February 2, 2021Assignee: Achuk Environmental Solutions Pvt. Ltd.Inventor: Rahul Abhaykumar Shah
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Patent number: 10668311Abstract: An inert gas-generating fire suppression composition is disclosed, consisting essentially of an oxidizer, comprising ammonium dinitramide and strontium nitrate, a fuel, comprising potassium isocyanurate, a gas-generate fuel, comprising guanidine nitrate and a quantity of carbon black.Type: GrantFiled: March 23, 2018Date of Patent: June 2, 2020Assignee: GOODRICH CORPORATIONInventor: Karl G Reimer
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Patent number: 10026510Abstract: A process is described for synthesizing a mixed peroxide or hydroxo-peroxide of an actinyl and at least one cation X1, wherein the actinyl is a uranyl or neptunyl and the at least one cation X1 is a di-, tri- or tetra-charged metal cation. This process includes the reaction in a solvent of a salt of the at least one cation X1 with a compound C2 selected from mixed peroxides and hydroxo-peroxides of the actinyl and of at least one singly charged cation X2, whereby compound C2 is converted to the peroxide or hydroxo-peroxide by replacement of the at least one cation X2 by said at least one cation X1. Also disclosed is a process for synthesizing a mixed oxide of an actinide selected from uranium and neptunium, and of at least one metal able to form a di-, tri- or tetra-charged cation, which implements the preceding synthesis process.Type: GrantFiled: December 18, 2014Date of Patent: July 17, 2018Assignee: Orano CycleInventors: Florent Blanchard, Francis Abraham, Stéphane Grandjean, Nicolas Vigier, Isabelle Hablot, Murielle Rivenet
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Patent number: 9717939Abstract: The disclosure relates to a fire extinguishing composition containing a transition metal compound, comprising a salt of an organic acid of the fourth period elements in a subgroup and the group VIII; and using a pyrotechnic agent as a heat source and a power source, reacting through heat emitted by igniting the pyrotechnic agent to burn and outputting a fire extinguishing material.Type: GrantFiled: August 16, 2012Date of Patent: August 1, 2017Assignee: XI'AN WESTPEACE FIRE TECHNOLOGY CO., LTDInventors: Tao Wei, Tao Ji, Shengxin Liu
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Patent number: 9662522Abstract: The present disclosure relates to a fire extinguishing composition containing saccharide and a saccharide derivative, comprising a saccharide derivative, a saccharide material and an auxiliary fire extinguishing agent, whose mass percentages are respectively: saccharide derivative 30%-60%, saccharide material 10%-40%, and auxiliary fire extinguishing agent 10%-30%. The fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source, is heated and decomposed or reacts by using the heat of burning of the pyrotechnic agent, to generate a fire extinguishing material to be sprayed together with the fireworks agent, thereby achieving the fire extinguishing purpose. The fire extinguishing composition of the present disclosure uses a saccharide derivative and a saccharide material as primary ingredients, uses a pyrotechnic agent as a heat source and a power source, and is easily decomposed after being heated to generate non-toxic and harmless gas.Type: GrantFiled: August 16, 2012Date of Patent: May 30, 2017Assignee: XI'AN J&R FIRE FIGHTING EQUIPMENT CO., LTDInventors: Yi Liu, Junna Yao, Zhanjun Yang
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Patent number: 9409045Abstract: A fire extinguishing system comprises a hermetically sealed storage canister (110) fabricated with at least one gas outlet (111) and defining a hollow (112) within; a powder form fire extinguishing agent (120) stored inside the canister (110): a solid propellant (130), which is ignitable to generate gases (135); connected to the canister (110); and a rupturable seal (140) disposed at the gas outlet (111), wherein the solid propellant (130) generates gasses to aerate the fire extinguishing agent (120) inside the canister (110) and build a positive gas pressure until the gas pressure is sufficient to rupture the seal (140) for discharging the fire extinguishing agent (120) under pressurized gas flow (150).Type: GrantFiled: April 20, 2012Date of Patent: August 9, 2016Assignee: PYROGEN MANUFACTURING SDN BHDInventor: Julia Berezovsky
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Patent number: 9283414Abstract: A solid propellant gas generator releases a flowing mixture from a solid propellant, separated from a surrounding area, into the surrounding area. The solid propellant gas generator includes a cooling system for cooling the flowing mixture. The cooling system has at least one feed device for feeding a gas from the surrounding area to the flowing mixture in order to mix the flowing mixture prior to entering into the surrounding area with the gas from the surrounding area.Type: GrantFiled: September 11, 2013Date of Patent: March 15, 2016Assignee: Airbus Defence and Space GmbHInventors: Jens Lemke, Elizabeth Richter, Sebastian Schulz
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Publication number: 20140332709Abstract: A metal-carbonyl-containing fire extinguishing composition comprises metal carbonyl complexes. The fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source. A high temperature in combustion of the pyrotechnic agent enables the fire extinguishing composition to decompose or react under heat; produced fire extinguishing substances are sprayed out together with the pyrotechnic agent, thereby achieving a fire extinguishing objective. In the fire extinguishing composition, by selecting preferable components and optimizing contents of the components, an optimum formula of the fire extinguishing composition is determined, thereby greatly improving the efficacy of the fire extinguishing composition. In addition, efficacies of the components in the fire extinguishing composition are fully utilized, which improves an effective utilization rate of the fire extinguishing composition.Type: ApplicationFiled: August 16, 2012Publication date: November 13, 2014Applicant: Xi'an J&R Fire Fighting Equipment Co., LtdInventors: Wei Tian, Tengfei Zhai, Tao Ji
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Patent number: 8871110Abstract: A fire extinguishing composition generating fire extinguishing substance through chemical reaction of ingredients at high temperature, wherein: the fire extinguishing composition comprises a flame retardant, an oxidant, a reducing agent and an adhesive; contents of each ingredient are: the flame retardant: 50 wt % to 90 wt %; the oxidant: 5 wt % to 30 wt %; the reducing agent: 5 wt % to 10 wt %; the adhesive: 0% to 10 wt %. In a usage of the fire extinguishing composition, a pyrotechnic agent is adopted as a heat source and a power source; and the purpose of fire extinguishing is achieved by: igniting the pyrotechnic agent, and the oxidant and the reducing agent in the fire extinguishing composition are reacted to generate the in the use of high temperature produced by burning the pyrotechnic agent. by burning the pyrotechnic agent, so as to implement fire extinguishing. Different from the traditional aerosol generating agent, there is no external heat source, and the composition itself does not burn.Type: GrantFiled: September 7, 2011Date of Patent: October 28, 2014Assignee: Xi'An J&R Fire Fighting Equipment Co., Ltd.Inventors: Hongbao Guo, Weipeng Zhang, Sanxue Zhang
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Patent number: 8865014Abstract: The present invention relates to a fire extinguishing composition which generate fire extinguishing substance by high temperature sublimation; the fire extinguishing composition comprising a fire extinguishing material which, in a heating process, can sublimate and release a fire extinguishing substance with fire extinguishing properties; the content of the fire extinguishing material is at least 80 wt %. When the fire extinguishing composition is in use, a pyrotechnic agent as a heat source and a power source; and the purpose of fire extinguishing is achieved by: igniting the pyrotechnic agent, generating a large quantity of fire substance from the fire extinguishing composition in the use of high temperature produced by burning pyrotechnic agent, and the fire substance sprays out together with the pyrotechnic agent.Type: GrantFiled: September 7, 2011Date of Patent: October 21, 2014Assignee: XI'AN J&R Fire Fighting Equipment Co., Ltd.Inventors: Hongbao Guo, Honghong Liu, Xiaoqing Zhao
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Patent number: 8778213Abstract: The present invention relates to a ferrocene-based fire extinguishing composition. The ferrocene-based fire extinguishing composition comprises ferrocene, a ferrocene derivative, or a combination thereof at a content of 25 mass % or more; when in use, a pyrotechnic agent is used as a heat source and a power source, the pyrotechnic agent is ignited, and the high temperature generated by the combustion of the pyrotechnic agent is utilized to make a fire extinguishing composition produce a large amount of fire extinguishing substance, which is sprayed out together with the pyrotechnic agent, so as to achieve the purpose of extinguishing a fire. Compared with a conventional fire extinguishing composition, a more efficient and safer fire extinguishing composition is provided.Type: GrantFiled: September 7, 2011Date of Patent: July 15, 2014Assignee: Xi'An J&R Fire Fighting Equipment Co., Ltd.Inventors: Hongbao Guo, Honghong Liu
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Patent number: 8721911Abstract: The present invention relates to a novel aging-resistant aerosol generating agent and preparation method thereof. The aging-resistant aerosol generating agent in the present invention comprises oxidizer, reducer and bonding agent, wherein the oxidizer is potassium nitrate, the bonding agent is phenolic resin, and the reducer is melamine; the weight percentages of the three constituents are: potassium nitrate: 60˜80%, phenolic resin: 8˜15%, and melamine: the rest. In the preparation process, phenolic resin is dissolved in ethanol to give phenolic resin solution at concentration by 40˜50 wt %; the oxidizer and reducer are pulverized, mixed, and then the phenolic resin solution is added to the mixed powder; next, the mixture is agitated, pelletized, dried, and shaped by pressure molding. Compared to that in the prior art, the aerosol generating agent in the present invention has higher fire suppression efficiency and higher fire suppression rate, and greatly improved aging resistant performance.Type: GrantFiled: July 3, 2010Date of Patent: May 13, 2014Assignee: Shaanxi J & R Fire Fighting Co., Ltd.Inventors: Hongbao Guo, Gaofeng Zheng, Weipeng Zhang
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Patent number: 8715540Abstract: The present invention provides combined property, dual-action aqueous and dry compositions for application to a material, such as conventional Gypsum Wall Board, ceiling tiles, joint compounds, concrete and other interior building materials, prior to an exposure of the material to fire, or prior to, during or after exposure of the material to conditions favorable to the growth of microbes, and related methods. When compositions within the present invention are properly applied to a material prior to the material being exposed to fire, or prior to, during or after the material being exposed to conditions favorable to the growth of microbes, these compositions have the effect of reducing the amount of burning that occurs to the material, and/or reducing the amount or density of smoke and associated toxic gases produced by the material, when the material is exposed to fire.Type: GrantFiled: November 11, 2009Date of Patent: May 6, 2014Assignee: MG3 Technologies Inc.Inventors: Jon Lee Curzon, Thomas William Smoot
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Publication number: 20140060859Abstract: Abatement of combustion by Li-ion battery is achieved by positioning a mixture comprising a thermally destabilizable solid fluoropolymer and a fluorinated composition with respect to the battery, the positioning being effective to provide the abatement of combustion of the battery, the mixture preferably being a semi-solid and having the proximity to the battery to provide the combustion abatement effect, preferably as a coating on at least a portion of the battery.Type: ApplicationFiled: August 22, 2013Publication date: March 6, 2014Applicant: EI DU PONT DE NEMOURS AND COMPANYInventors: Dennis J. Kountz, James R. Hoover, George Martin Pruce
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Patent number: 8652346Abstract: A fire-extinguishing aerosol composition for common electric apparatuses is disclosed, which includes oxidant, combustible, adhesive and additive. The composition of the present invention is characterized in that the oxidant is the mixture of the potassium salt and the strontium salt, in which the content of the potassium salt oxidant is more than or equal to 15 mass % to less than 20 mass % of the total mass of the composition, and the content of the strontium salt oxidant is more than 48 mass % to less than or equal to 52 mass % of the total mass of the composition. In the fire-extinguishing aerosol composition of the present invention, the mean particle diameter of all components is less than or equal to 50 ?m. After quenching the fire in a space with the heavy current electric apparatus, the fire-extinguishing aerosol composition of the present invention can ensure that the insulation resistance of the common electric apparatus is ranged from 20M? to 100M?.Type: GrantFiled: November 14, 2007Date of Patent: February 18, 2014Assignee: Shaanxi J&R Fire Fighting Co., LtdInventors: Hongbao Guo, Zanfeng Zhang
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Publication number: 20140041882Abstract: The invention is directed to a fire-extinguishing composition comprising an oxidant, a secondary fuel and a phenol-formaldehyde resin, wherein the phenolformaldehyde resin molecule contains more than 3 aromatic ring structures and its use to extinguish a fire, especially a fire in an enclosed space. The invention is also directed to a process to prepare such a composition and to the use of the composition to extinguish a fire by an aerosol which is formed during burning of the composition.Type: ApplicationFiled: February 14, 2012Publication date: February 13, 2014Applicant: AF-X SYSTEMS B.V.Inventor: Hans Van Der Jagt
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Publication number: 20130202758Abstract: Potassium bicarbonate is coated with an anionic or amphoteric surfactant, which is preferably a metal soap, such as calcium stearate, to inhibit caking on storage, and premature loss of carbon dioxide when mixed with acidulant, e.g. in a baking powder or self-raising flour blend. Loss of carbon dioxide in the blend may be further inhibited by coating the acidulant with surfactant. Combination of surfactant coating with an inorganic anti-caking agent such as silicon dioxide gives synergistic protection against caking of the potassium bicarbonate. Preferably the bicarbonate has D50 of between 35 and 200? and is free from particles greater than 400?.Type: ApplicationFiled: March 16, 2011Publication date: August 8, 2013Applicant: KUDOS BLENDS LTD.Inventors: Daniel James Brown, Diana Jordan
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Patent number: 8475759Abstract: The present invention relates to a chemical composition and method of generating carbon dioxide for use with an insect monitor and/or capture device comprising: i) an effervescent agent; ii) a solid acid; iii) a deliquescent agent; and optionally iv) an anti-clumping agent.Type: GrantFiled: October 5, 2011Date of Patent: July 2, 2013Assignee: FMC CorporationInventors: Bruce C. Black, Shreya Sheth, Linda Varanyak
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Patent number: 8453751Abstract: A fire control system according to various aspects of the present invention includes an extinguishant configured to absorb heat from the fire. In one embodiment, the extinguishant is configured to absorb thermal radiation from the fire and inhibit reflection of thermal radiation from the extinguishant and/or other surfaces back into the fire. In additional and alternative embodiments, the extinguishant includes a thermal absorbant may be configured to transfer heat into the surface and/or interior of suppressant particles or droplets to promote activation of the suppressant.Type: GrantFiled: June 15, 2004Date of Patent: June 4, 2013Assignee: Firetrace USA, LLCInventor: Joseph Michael Bennett
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Patent number: 8231801Abstract: A fire-extinguishing aerosol for precision electric appliance is disclosed, which includes oxidant, flammable agent, adhesive and additive. The composition of the present invention is characterized in that the oxidant is the mixture of the potassium salt and the strontium salt, in which the content of the potassium salt oxidant is more than or equal to 5 mass % to less than 15 mass % of the total mass of the composition, and the content of the strontium salt oxidant is more than 52 mass % to less than or equal to 60 mass % of the total mass of the composition. In the fire-extinguishing aerosol composition of the present invention, the particle average diameter of all components is less than 50 ?m. After quenching the fire in the space in which the precision electric appliance is installed, the fire-extinguishing aerosol composition of the present invention can ensure that the dielectric resistance of the precision electric appliance is more than or equal to 100 M?.Type: GrantFiled: November 14, 2007Date of Patent: July 31, 2012Assignee: Shaanxi J&R Fire Fighting Co., Ltd.Inventors: Hongbao Guo, Zanfeng Zhang
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Patent number: 8182711Abstract: The present invention is directed to pyrotechnic aerosol fire suppression compositions that burn rapidly, but coolly. The rapid burning of the compositions of the present invention produces a voluminous flame-suppressive aerosol that is useful in suppressing and/or extinguishing both small and large fires. The compositions of the invention contain at least one oxidizer and a fuel component comprising at least one organic acid salt, which combination produces a rapid burning composition that burns at low temperatures with little or no flame and have a low heat of combustion.Type: GrantFiled: March 8, 2011Date of Patent: May 22, 2012Assignee: Goodrich CorporationInventors: Philip L. Posson, Mark L. Clark
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Patent number: 8147706Abstract: A low temperature flameless aerosol producing fire extinguishing composition containing potassium nitrate and binding fuel is characterized by using cellulose-fibrous mass as a binding fuel, with potassium nitrate at 30-70% and fibrous cellulose mass making up the remainder. A production method for the composition is further provided.Type: GrantFiled: May 10, 2010Date of Patent: April 3, 2012Assignee: ATOZ Design Labs Co., LimitedInventors: Zachary Joseph Zeliff, Liana Vladimirovna Loveless, Vladimir Victorovich Kutsel, Aleksander Ivanovich Doronichev
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Publication number: 20120034482Abstract: A flexible planar carrier bears an aerosol-producing fire extinguishing composition. The carrier can be an integral part of the composition when saturated with a solution that, upon combustion of the prepared carrier, produces fire extinguishing aerosol, or can bear the composition, providing structural support and/or thermal insulation, depending on requirements of the specific application. The carrier may have a thermal insulating layer applied on the mounting side, insulating the mounting surface and the prepared material, and may further have a hydrophobic layer applied at least on its active surface. The flexible planar carrier enables a stable, workable application of the composition to be easily deployed along any planar surface, providing instant low-impact extinguishment of flames over a wide area.Type: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Inventors: Zachary Joseph Zeliff, Liana Vladimirovna Loveless, Stanislav Vladimirovich Kutsel
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Patent number: 7906034Abstract: The present invention is directed to pyrotechnic aerosol fire suppression compositions that burn rapidly, but coolly. The rapid burning of the compositions of the present invention produces a voluminous flame-suppressive aerosol that is useful in suppressing and/or extinguishing both small and large fires. The compositions of the invention contain at least one oxidizer and a fuel component comprising at least one organic acid salt, which combination produces a rapid burning composition that burns at low temperatures with little or no flame and have a low heat of combustion.Type: GrantFiled: October 1, 2007Date of Patent: March 15, 2011Assignee: Goodrich CorporationInventors: Philip L. Posson, Mark L. Clark
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Publication number: 20100294975Abstract: A low temperature flameless aerosol producing fire extinguishing composition containing potassium nitrate and binding fuel is characterized by using cellulose-fibrous mass as a binding fuel, with potassium nitrate at 30-70% and fibrous cellulose mass making up the remainder. A production method for the composition is further provided.Type: ApplicationFiled: May 10, 2010Publication date: November 25, 2010Inventors: Zachary Joseph Zeliff, Liana Vladimirovna Loveless, Vladimir Victorovich Kutsel, Aleksander Ivanovich Doronichev
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Publication number: 20100187465Abstract: A fire-extinguishing aerosol composition for common electric apparatuses is disclosed, which includes oxidant, combustible, adhesive and additive. The composition of the present invention is characterized in that the oxidant is the mixture of the potassium salt and the strontium salt, in which the content of the potassium salt oxidant is more than or equal to 15 mass % to less than 20 mass % of the total mass of the composition, and the content of the strontium salt oxidant is more than 48 mass % to less than or equal to 52 mass % of the total mass of the composition. In the fire-extinguishing aerosol composition of the present invention, the mean particle diameter of all components is less than or equal to 50 ?m. After quenching the fire in a space with the heavy current electric apparatus, the fire-extinguishing aerosol composition of the present invention can ensure that the insulation resistance of the common electric apparatus is ranged from 20M? to 100M?.Type: ApplicationFiled: November 14, 2007Publication date: July 29, 2010Applicant: SHAANXI J&R FIRE FIGHTING CO., LTD.Inventors: Hongbao Guo, Zanfeng Zhang
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Patent number: 7661483Abstract: Methods of reducing smoke levels in smoke-affected areas, reducing the level of toxic compounds produced by fires, fire suppression, and increasing flame retardancy. In particular, methods according to the present invention comprise dispersing nanocrystalline particles in the areas affected by smoke for sorption of smoke particulates and toxic compounds produced from a fire. The nanocrystalline particles are also effective for use in methods of fire suppression and flame retardancy.Type: GrantFiled: August 22, 2007Date of Patent: February 16, 2010Assignee: NanoScale CorporationInventors: Ravichandra S. Mulukutla, Paul S. Malchesky, Ronaldo Maghirang, John S. Klabunde, Kenneth J. Klabunde, Olga Koper
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Publication number: 20090146098Abstract: The present invention relates to a powder extinguishing agent used for extinguishing fires of burning light metals. The powder extinguishing agent includes: potassium chloride in an amount from 40% to 50% by weight, sodium chloride in an amount from 45% to 55% by weight, and calcium fluoride in an amount from 2% to 8% by weight. The present invention also relates to a method for manufacturing the powder extinguishing agent.Type: ApplicationFiled: August 6, 2008Publication date: June 11, 2009Applicants: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Guang-Liang Sheu, Li-Qing Zhang
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Publication number: 20080245537Abstract: The present invention is directed to pyrotechnic aerosol fire suppression compositions that burn rapidly, but coolly. The rapid burning of the compositions of the present invention produces a voluminous flame-suppressive aerosol that is useful in suppressing and/or extinguishing both small and large fires. The compositions of the invention contain at least one oxidizer and a fuel component comprising at least one organic acid salt, which combination produces a rapid burning composition that burns at low temperatures with little or no flame and have a low heat of combustion.Type: ApplicationFiled: October 1, 2007Publication date: October 9, 2008Inventors: Philip L. Posson, Mark L. Clark
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Patent number: 7407598Abstract: The present invention is directed to pyrotechnic aerosol fire suppression compositions that burn rapidly, but coolly. The rapid burning of the compositions of the present invention produces a voluminous flame-suppressive aerosol that is useful in suppressing and/or extinguishing both small and large fires. The compositions of the invention contain at least one oxidizer and a fuel component comprising at least one organic acid salt, which combination produces a rapid burning composition that burns at low temperatures with little or no flame.Type: GrantFiled: April 30, 2004Date of Patent: August 5, 2008Assignee: Goodrich CorporationInventors: Philip L. Posson, Mark L. Clark
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Patent number: 7276640Abstract: Methods of reducing smoke levels in smoke-affected areas, reducing the level of toxic compounds produced by fires, fire suppression, and increasing flame retardancy. In particular, methods according to the present invention comprise dispersing nanocrystalline particles in the areas affected by smoke for sorption of smoke particulates and toxic compounds produced from a fire. The nanocrystalline particles are also effective for use in methods of fire suppression and flame retardancy.Type: GrantFiled: October 18, 2005Date of Patent: October 2, 2007Assignee: NanoScale CorporationInventors: Ravichandra S. Mulukutla, Paul S. Malchesky, Ronaldo Maghirang, John S. Klabunde, Kenneth J. Klabunde, Olga Koper
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Patent number: 7182881Abstract: A fire extinguishing agent contains at least one compound selected from the group consisting of an alkali hydrogencarbonate and an alkali carbonate, the alkali hydrogencarbonate being thermally decomposed to generate carbon dioxide and an alkali carbonate, a metal oxide that reacts with the alkali carbonate to generate carbon dioxide, and a hydrophobic binder.Type: GrantFiled: August 14, 2003Date of Patent: February 27, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Kato, Sawako Yoshikawa, Kenji Essaki, Kazuaki Nakagawa
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Patent number: 6726766Abstract: The present invention is directed to polycrystalline alkali metal or alkaline earth metal beads, in particular CaF2 beads, having a diameter greater than or equal to 100 &mgr;m, advantageously between 100 &mgr;m and 2 cm, and an apparent density greater than 60%, advantageously at least 90%, of the theoretical density of said fluoride. The invention is also directed to a process for the preparation of the foregoing alkali metal and alkaline earth fluoride beads, and for the preparation of single crystals of said fluorides using the foregoing polycrystalline beads.Type: GrantFiled: August 22, 2002Date of Patent: April 27, 2004Inventors: Alexandre M. Mayolet, Michael A. Pell
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Patent number: 6689285Abstract: 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: GrantFiled: December 14, 2001Date of Patent: February 10, 2004Assignee: Techno-TM LLCInventors: Dmitriy Leonidovich Rusin, Anatoliy Petrovich Denisyuk, Dmitriy Borisovich Michalev, Juriy Germanovich Shepelev
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Patent number: 6451106Abstract: A polycrystalline alkali-metal or alkaline-earth metal (more particularly CaF2) fluorides, produced in an original form, namely in the form of beads; said beads having a diameter or equivalent diameter greater than or equal to 100 um, advantageously between 100 um and 2 cm and an apparent density greater than or equal to 60%, advantageously at least 90% of the theoretical density of said fluoride. A process for the preparation of single crystals of the corresponding alkali-metal or alkaline-earth metal fluorides that uses polycrystalline fluorides in the aforementioned original form.Type: GrantFiled: October 4, 2000Date of Patent: September 17, 2002Assignee: Corning IncorporatedInventors: Alexandre M. Mayolet, Michael A. Pell
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Patent number: 6328906Abstract: A pyrotechnic gas generant composition includes a high oxygen balance compound or fuel, preferably, azodiformamidine dinitrate, which is the resulting reaction product of an aminoguanidine salt and nitric acid. Specifically, the high oxygen balance compound or fuel of the present invention is the resulting reaction product of aminoguanidine salts, such as aminoguanidine nitrate, aminoguanidine bicarbonate, or aminoguanidine sulfate with nitric acid. Preferably, the aminoguanidine salt is aminoguanidine bicarbonate. The resulting reaction product is a yellow precipitate that can be used alone, with or without oxidizers or other additives, for very rapid self-deflagration or in combination with oxidizers and additives. In each instance, the gas generant composition provides both high gas output and low production of solid combustion products. Further, the precipitant is relatively non-hygroscopic and has a high burn rate.Type: GrantFiled: December 20, 1999Date of Patent: December 11, 2001Assignee: Atlantic Research CorporationInventors: Norman H. Lundstrom, Aaron J. Greso, Robert S. Scheffee
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Patent number: 6277296Abstract: Fire suppressant compositions which are substantially free of ammonium nitrate and which comprise potassium nitrate in an amount sufficient to generate at least about 10 wt. % potassium carbonate when combusted. Most preferably, a guanidine salt, such as guanidine nitrate, is used in combination with the potassium nitrate. The compositions employed in the present invention have low pressure exponents, high burning rates and low flame temperatures.Type: GrantFiled: November 30, 1999Date of Patent: August 21, 2001Assignee: Atlantic Research CorporationInventors: Robert S. Scheffee, Jamie B. Neidert, Robert E. Black, III, Robert D. Lynch, James D. Martin
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Patent number: 6217788Abstract: The present invention is directed to a fire suppression composition, comprising a propellant comprising a fuel and an oxidizer, said propellant capable of generating inert gas; and a fire suppression additive selected from the group consisting of iron-containing compounds, non-halide potassium salts, and combinations thereof. Useful iron-containing compounds include ferric oxide, ferric carbonate, ferric oxalate, and iron cyanide dyes. Useful potassium salts include potassium acetate, potassium acetylacetonate, potassium bicarbonate, and potassium carbonate. The invention is also directed to a fire suppression apparatus that utilizes the above fire suppression composition.Type: GrantFiled: February 15, 2000Date of Patent: April 17, 2001Assignee: Primex Aerospace CompanyInventors: Edward J. Wucherer, Gary F. Holland
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Patent number: 6045637Abstract: A solid-solid hybrid gas generator composition includes a solid gas generator material and a solid, flame retardant material. The flame retardant material may include one or more bromine-, chlorine- and phosphorous-containing compounds. The gas generator material and flame retardant material may be in the same vessel.Type: GrantFiled: July 28, 1998Date of Patent: April 4, 2000Assignee: Mainstream Engineering CorporationInventor: Lawrence R. Grzyll
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Patent number: 6024889Abstract: The invention is directed to a chemically active fire suppression composition, comprising a propellant comprising a fuel and an oxidizer, the propellant capable of generating inert gas; and an environmentally innocuous chemical fire suppressant capable of generating fire suppressive reactive species. The combination of physically acting fire suppression agents and chemically acting, environmentally innocuous fire suppression agents results in a highly effective, environmentally innocuous fire extinguishing composition that has low ozone depletion potential (ODP), low global warming potential (GWP), and high suppression efficiency.Type: GrantFiled: January 29, 1998Date of Patent: February 15, 2000Assignee: Primex Technologies, Inc.Inventors: Gary F. Holland, Michael A. Wilson
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Patent number: 5938969Abstract: A fire suppressant powder with particle sizes less than 5 .mu.m is made by a chemical reaction between a gas or vapour of a first material and a vapour or an aerosol of a second material. For example an aerosol of sodium hydroxide droplets may be reacted with carbon dioxide gas to produce sodium bicarbonate powder; or boron halide vapour may be reacted with steam to form boric acid powder The powder may be used in fire extinguishers either on its own, or combined with other ingredients such as silica and/or alumina, and calcium stearate.Type: GrantFiled: December 3, 1997Date of Patent: August 17, 1999Assignee: AEA Technology plcInventor: David Alexander Vodden Morton
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Patent number: 5831209Abstract: The present invention relates to a pyrotechnical, aerosol-forming composition for the purpose of extinguishing fires in confined spaces, containing potassium nitrate in a quantity of 67-72% by mass, phenolformaldehyde resin in a quantity of 8-12% by mass and dicyandiamide as the balance, wherein the particles of the potassium nitrate have a maximum average diameter of 25 .mu.m, the particles of the phenolformaldehyde resin have a maximum average diameter of 100 .mu.m and the particles of the dicyandiamide have a maximum average diameter of 15 .mu.m,A further object of the invention is a method for the preparation of the composition, which can be manufactured in conventional installations, by preparing a phenolformaldehyde solution using a mixture of ethyl alcohol with acetone in a ratio of 30-50:70-50 and by mixing and subsequently granulating during the drying process at 20.degree.-70.degree. C. The drying process is preferably performed at 40.degree. C. by circulating air.Type: GrantFiled: April 24, 1997Date of Patent: November 3, 1998Assignee: R-Amtech International, Inc.Inventors: Valeriy Nikolaevitch Kozyrev, Valeriy Nilovitch Yemelyanov, Alexey Ivanovitch Sidorov, Vladimir Andreevitch Andreev
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Patent number: 5660763Abstract: Fire fighting compositions are disclosed which are distinguished from the prior art by the presence of alum as a component of the composition, by the use of a combination of salts in concentrations which will form a eutectic mixture when heated, and by the inclusion of a salt of an organic acid which will generate carbon dioxide by the heat of a fire. Additional inorganic salts may be added to increase the effectiveness of the composition. These fire fighting compositions may be permeated into a cellulosic material to provide fire retardant articles of manufacture.Type: GrantFiled: March 10, 1995Date of Patent: August 26, 1997Assignee: Thermic Labs, Inc.Inventor: George F. Uhlig
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Patent number: 5626787Abstract: A fire extinguishing composition is disclosed consisting essentially of a mixture of (i) desiccated expanded perlite (aluminum silicate) and (ii) mono- and di-ammonium phosphates. The phosphate fraction of the composition preferably includes urea, ammonium chloride, glycerine and mono-ethylene glycol.Type: GrantFiled: June 30, 1995Date of Patent: May 6, 1997Inventor: Ronald A. Porter
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Patent number: 5613562Abstract: There is disclosed an apparatus for suppressing a fire. The apparatus includes a gas generator containing as a propellant, a mixture of a fuel, strontium nitrate as an oxidizer, and magnesium carbonate. When the propellant is ignited, a nitrogen rich effluent is generated that is effective to suppress the fire. By providing the propellant with at least 35%, by weight, of magnesium carbonate, the generation of effluent by-products that are corrosive to aluminum is inhibited.Type: GrantFiled: August 28, 1996Date of Patent: March 25, 1997Assignee: Olin Aerospace CompanyInventors: Lyle D. Galbraith, Gary F. Holland, Donald R. Poole, Robert M. Mitchell
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Patent number: 5520826Abstract: A flame extinguishing pyrotechnic which flamelessly deflagrates to produce rimarily nitrogen, carbon dioxide, and a fluoroolefin. The flame extinguishing characteristic is achieved by reducing the content of oxygen proximate the deflagration as well as through the flame suppressing properties of particular fluoroolefins. The pyrotechnic composition contains an azido binder such as glycidyl azide polymer (GAP), an azido plasticizer, a solid tetrazole, and a perfluorocarboxylic acid salt. This composition is cured to a rubbery composite by the addition of an isocyanate.Type: GrantFiled: May 16, 1994Date of Patent: May 28, 1996Assignee: The United States of America as represented by the Secretary of the NavyInventors: Russell Reed, Jr., Vicki L. Brady
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Patent number: RE40651Abstract: A class of fire suppressant compounds which have labile bromine atoms bound to atoms other than carbon have been discovered to be more effective at suppressing fires than Halon 1211 and Halon 1301. Moreover, this class of fire suppressant compounds hydrolyze or oxidize rapidly in the troposphere and as a consequence thereof, they have minimal ozone depletion potential.Type: GrantFiled: July 16, 2004Date of Patent: March 10, 2009Assignee: Eclipse Aviation CorporationInventors: John H. Huntington, Peter D. Haaland
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Patent number: RE41557Abstract: A class of fire suppressant compounds which have labile bromine atoms bound to atoms other than carbon have been discovered to be more effective at suppressing fires than Halon 1211 and Halon 1301. Moreover, this class of fire suppressant compounds hydrolyze or oxidize rapidly in the troposphere and as a consequence thereof, they have minimal ozone depletion potential.Type: GrantFiled: October 31, 2008Date of Patent: August 24, 2010Assignee: Eclipse Aerospace, Inc.Inventors: John H. Huntington, Peter D. Haaland
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Patent number: RE41558Abstract: A class of fire suppressant compounds which have labile bromine atoms bound to atoms other than carbon have been discovered to be more effective at suppressing fires than Halon 1211 and Halon 1301. Moreover, this class of fire suppressant compounds hydrolyze or oxidize rapidly in the troposphere and as a consequence thereof, they have minimal ozone depletion potential.Type: GrantFiled: October 31, 2008Date of Patent: August 24, 2010Assignee: Eclipse Aerospace, Inc.Inventors: John H. Huntington, Peter D. Haaland