US1792826A - Fire-extinguishing material - Google Patents

Fire-extinguishing material Download PDF

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Publication number
US1792826A
US1792826A US220621A US22062127A US1792826A US 1792826 A US1792826 A US 1792826A US 220621 A US220621 A US 220621A US 22062127 A US22062127 A US 22062127A US 1792826 A US1792826 A US 1792826A
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US
United States
Prior art keywords
fire
sodium
extinguishing material
fires
bicarbonate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US220621A
Inventor
Lodias J Dugas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DU-GAS FIRE EXTINGUISHER Corp
GAS FIRE EXTINGUISHER CORP DU
Original Assignee
GAS FIRE EXTINGUISHER CORP DU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GAS FIRE EXTINGUISHER CORP DU filed Critical GAS FIRE EXTINGUISHER CORP DU
Priority to US220621A priority Critical patent/US1792826A/en
Application granted granted Critical
Publication of US1792826A publication Critical patent/US1792826A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0007—Solid extinguishing substances
    • A62D1/0014—Powders; Granules

Definitions

  • a liquid is employed, either of the organic non combustible class such as carbon tetrachloride, or a solution of sodium bicarbonate and an acid adapted when brought into to soli dry form, ada t without theuse o liquids to the confiagra- -ind tion area.
  • sodium bicarbonate form makes a very efiicient fire extinglnshing material if applied directly to the burning objects. Especially is this true of oil fires, where water is worse than useless since it simply tends to spread the fire.
  • Sodium bicarbonate on the other hand has a twofold advantage in fighting oil fires. In the first place, the heat of the fire decomposes the bicarbonate to liberate carbon dioxide which forms a blanket around the fire and eventually smothers it. In the second place, the sodium carbonate formed as a result of the decomposition of the bicarbonate, if sufiiciently heated, fusesover the surface of the oil to form a non-combustible film. In the case of fires caused b electric arc, the sodium carbonate tends to e 'over the sur-' Application filed September 19, 1987. Serial No. 280,821.
  • sodium bicarbonate may be satisfactorily mixed with certain other ingredients adapted to prevent the bicarbonate from cakin and also adapted to form a flux over the hurning material.
  • these other ingredients may be mentioned fillers, such as mfusorial earth, asbestos dust, silica and ash, and fusible materials such as sodium borate, calcium chloride an sodium chloride.
  • fillers such as mfusorial earth, asbestos dust, silica and ash
  • fusible materials such as sodium borate, calcium chloride an sodium chloride.
  • this fire extinguishing matenal is preferably used in connection with my fire extin isher shown in m copending application, erial N 0. 132,179, til 28, 1926. In that application there is shown a cylindrical container adapted to be filled It will be apparent that my fire extinguished Augusting material has none of the disadvantages of the liquid chemicals commonly used and is therefore much more satisfactory for fighting fires. It should be further noted that no water is necessary in the a plication of the extinguishing powder an v that therefore there is no attendant damage such as is so often the case in fires in which large quantities of water are used.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)

Description

Io Drawing.
Patented Feb. 17, 19.31
UNITED S ATES PATENT OFFICE Lorna .1. nueas, or cmcaeo, rrinmors, assrenoa 'ro nu-ea's FIRE EZ'IINGUISHEB ooarom'rron, or maw YORK, N. z, a coarona'rxon or nnnawaaa V rmn nxmeursnme Marianna V This invention relates to fire extinguishing material and to a method of using such material inthe extinction of fires.
In the usual type of chemical fire extin- 5 guisher, a liquid is employed, either of the organic non combustible class such as carbon tetrachloride, or a solution of sodium bicarbonate and an acid adapted when brought into to soli dry form, ada t without theuse o liquids to the confiagra- -ind tion area.
It is a further object of this invention to provide a method of applying a dry fire extinguishing powder to a fire by delivering the same in a high pressure stream of a noncombustible gas.-
Other and further important objects of this invention will be apparentfrom the following description and appended claims.
I have now found that sodium bicarbonate form makes a very efiicient fire extinglnshing material if applied directly to the burning objects. Especially is this true of oil fires, where water is worse than useless since it simply tends to spread the fire. Sodium bicarbonate on the other hand has a twofold advantage in fighting oil fires. In the first place, the heat of the fire decomposes the bicarbonate to liberate carbon dioxide which forms a blanket around the fire and eventually smothers it. In the second place, the sodium carbonate formed as a result of the decomposition of the bicarbonate, if sufiiciently heated, fusesover the surface of the oil to form a non-combustible film. In the case of fires caused b electric arc, the sodium carbonate tends to e 'over the sur-' Application filed September 19, 1987. Serial No. 280,821.
face of the conductors to form an insulating film, thus resulting in the smothering of the arc.
I have further found that sodium bicarbonate may be satisfactorily mixed with certain other ingredients adapted to prevent the bicarbonate from cakin and also adapted to form a flux over the hurning material. Among these other ingredients may be mentioned fillers, such as mfusorial earth, asbestos dust, silica and ash, and fusible materials such as sodium borate, calcium chloride an sodium chloride. As an example of a satisfactory composition of my fire extinguishing material, the following analysis is given:
Per cent Sodium bicarbonate Calcium chloride; 15 Sodium borate 10 Silica 2 Ash 3 Sodium chloride 5 In fighting fires, this fire extinguishing matenal is preferably used in connection with my fire extin isher shown in m copending application, erial N 0. 132,179, til 28, 1926. In that application there is shown a cylindrical container adapted to be filled It will be apparent that my fire extinguished Augusting material has none of the disadvantages of the liquid chemicals commonly used and is therefore much more satisfactory for fighting fires. It should be further noted that no water is necessary in the a plication of the extinguishing powder an v that therefore there is no attendant damage such as is so often the case in fires in which large quantities of water are used.
I am aware that many changes may be made, and numerous details of the process may be varied through a wide range without departing from the principles of this invention, and I therefore do not purlpose limiting the patent granted hereon, ot erwise than necessitated by the prior art.
I claimas my invention 1. Fire extinguishing material having approximately the fellowing composition and adapted to be applied in dry form:
Per cent Sodium bicarbonate Calcium chloride 15 Sodium borate 10 Silica 2 Ash 3 Sodium chloride 5 2. Fire extinguishing material com rised largely of dry sodium icarbonate, an containing relatively smaller quantities of calcium chloride, sodium borate, sodium chloride, and a filler.
In testimony whereof I have hereunto subscribed my name at Chicago, Cook County,
Illinois.
LODIAS J. D'UGAS.
US220621A 1927-09-19 1927-09-19 Fire-extinguishing material Expired - Lifetime US1792826A (en)

Priority Applications (1)

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US220621A US1792826A (en) 1927-09-19 1927-09-19 Fire-extinguishing material

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US1792826A true US1792826A (en) 1931-02-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472539A (en) * 1946-05-18 1949-06-07 American La France Foamite Fire extinguishing powder
US4909328A (en) * 1987-12-29 1990-03-20 Lorino/Dechant Enterprises, Inc. Fire extinguisher composition and apparatus
US4961865A (en) * 1988-12-30 1990-10-09 United American, Inc. Combustion inhibiting methods and compositions
US20090320717A1 (en) * 2008-06-26 2009-12-31 Daniel Adams Fire-Resistant and Insulating Additives for Building Materials, Their Methods of Production and Uses Thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472539A (en) * 1946-05-18 1949-06-07 American La France Foamite Fire extinguishing powder
US4909328A (en) * 1987-12-29 1990-03-20 Lorino/Dechant Enterprises, Inc. Fire extinguisher composition and apparatus
US4961865A (en) * 1988-12-30 1990-10-09 United American, Inc. Combustion inhibiting methods and compositions
US20090320717A1 (en) * 2008-06-26 2009-12-31 Daniel Adams Fire-Resistant and Insulating Additives for Building Materials, Their Methods of Production and Uses Thereof
US8066807B2 (en) * 2008-06-26 2011-11-29 Daniel Adams Fire-resistant and insulating additives for building materials, their methods of production and uses thereof

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