# US 2013/0084533 A1 · Spill proof alcohol burner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0084533 A1 - Document ID: US20130084533A1 - Status: Published application - Kind: A1 - Application number: 13/200,733 - Filed: 2011-09-29 - Published: 2013-04-04 - Earliest claimed: 2011-09-29 - Assignees: Brasa Fire, Inc. - Inventors: Scott Begg - Web page: https://patentgrep.com/patent/US20130084533A1 ## CPC - F23D 5/12: Details - F23D 5/04: Pot-type evaporators, i.e. using a partially-enclosed combustion space - F23D 5/14: Maintaining predetermined amount of fuel in evaporator - F23D 5/16: Safety devices - F23Q 25/00: Extinguishing-devices, e.g. for blowing-out or snuffing candle flames (for cigarettes A24F) - F24C 5/04: wick type - F23D: BURNERS - F23Q: IGNITION (devices or installations peculiar to internal-combustion engines F02P; of cigarettes or tobacco A24F; compositions therefor, chemical igniters C06C); EXTINGUISHING-DEVICES - F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION ## Abstract A portable alcohol burner is designed to use ethanol as a fuel for indoor/outdoor settings. The burner has a fuel chamber filled with ceramic fiber filler permeated with alcohol. A perforated baffle cage is fitted in the housing and is completely surrounded by the filler material. As alcohol vapors escape from the fuel chamber and rise through the perforations in the baffle cage they can be ignited to create a desired pleasing flame pattern. ## Claims ### Claim 1 An alcohol burner assembly, comprising: a hollow housing having a fuel chamber defined by a closed bottom plate, a continuous upright sidewall secured to the bottom plate, and a top plate resting on said upright sidewall, said top plate being provided with an open portion; a baffle cage mounted in the fuel chamber and extending downwardly into the fuel chamber below the top plate, said baffle cage being provided with a plurality of openings and an open top substantially aligned with the open portion of the top plate; and a porous filler deposited in the fuel chamber in a surrounding relationship to the baffle cage, said filler being permeated with liquid alcohol. ### Claim 2 (depends on 1) The assembly of claim 1, wherein the baffle cage has a perforated trough configuration of a generally U-shaped cross-section. ### Claim 3 (depends on 1) The assembly of claim 1, further comprising a baffle cover positioned on the top plate and configured for sliding movement along the top plate between an open position and a closed position covering the open top of the baffle cage. ### Claim 4 (depends on 3) The assembly of claim 3, further comprising a wand configured for engaging the baffle cover and moving the cover along the top plate between the closed and open positions. ### Claim 5 (depends on 3) The assembly of claim 3, wherein the top plate comprises a central portion and a peripheral flange extending outwardly from the central portion. ### Claim 6 (depends on 5) The assembly of claim 5, wherein a transverse shoulder is formed between the central portion and the flange, and wherein the baffle cover is configured to frictionally engage the transverse shoulder without substantially extending above the flange. ### Claim 7 (depends on 5) The assembly of claim 5, wherein at least a portion of said flange extends outwardly and transversely to, the upright sidewall of the housing. ### Claim 8 (depends on 1) The assembly of claim 1, wherein the filler comprises high temperature-resistance material having low thermal conductivity. ### Claim 9 (depends on 1) The assembly of claim 1, wherein the filler comprises ceramic fiber wool. ### Claim 10 (depends on 1) The assembly of claim 1, wherein said housing has a generally rectangular configuration and said baffle cage is configured as an elongated trough having perforated bottom and perforated sidewall. ### Claim 11 (depends on 1) The assembly of claim 1, wherein said filler is configured to retain liquid alcohol by surface tension. ### Claim 12 (depends on 1) The assembly of claim 1, wherein said filler is selected from a material having a melting point of about 3000 degrees Fahrenheit. ### Claim 13 (depends on 1) The assembly of claim 1, wherein the liquid alcohol is selected from a material having an evaporation temperature ranging from about 172 degrees to about 176 degrees Fahrenheit. ### Claim 14 (depends on 1) The assembly of claim 1, further comprising a protective enclosure configured to receive the housing therein. ### Claim 15 (depends on 14) The assembly of claim 14, wherein the enclosure comprises a top peripheral portion, and wherein the flange is configured to rest on the top peripheral portion suspending the housing within the enclosure. ### Claim 16 (depends on 14) The assembly of claim 14, wherein the enclosure comprises a closed bottom member, an open top and an upwardly extending sidewall member secured to the bottom member. ### Claim 17 (depends on 16) The assembly of claim 16, wherein the bottom member comprises an inner bottom part and an outer bottom part spaced from the inner bottom part. ### Claim 18 (depends on 17) The assembly of claim 17, wherein the sidewall member comprises an inner sidewall part and an outer sidewall part spaced from the inner sidewall part, said inner sidewall part being secured to the inner bottom part, and the outer sidewall part being secured to the outer bottom part. ### Claim 19 (depends on 1) The assembly of claim 1, wherein the top plate is provided with an indentation configured to receive a pre-determined quantity of a scented material therein. ### Claim 20 (depends on 1) The assembly of claim 1, wherein the baffle cage extends into the fuel chamber to about one-half depth of the fuel chamber. ### Claim 21 An alcohol burner assembly, comprising: a hollow housing having a generally rectangular fuel chamber defined by a closed bottom plate, a continuous upright sidewall secured to the bottom plate and extending upwardly therefrom, and a top plate resting on said upright sidewall, said top plate being provided with a generally rectangular opening; a substantially rectangular baffle cage mounted in the fuel chamber to extend downwardly into the fuel chamber below the top plate, said baffle cage having a generally U-shaped cross section and being provided with a plurality of perforations along bottom and sides of the baffle cage and an open top substantially aligned with the rectangular opening of the top plate; a generally rectangular baffle cover configured for sliding engagement with the top plate, said baffle cover being configured to move between an open position away from the rectangular opening and a closed position extending over the rectangular opening and the baffle cage; and a ceramic fiber filler deposited in the fuel chamber in a surrounding relationship to the baffle cage, said filler being permeated with liquid alcohol. ### Claim 22 (depends on 21) The assembly of claim 21, wherein the rectangular baffle cage is configured to produce a rectangular flame pattern. ### Claim 23 (depends on 21) The assembly of claim 21, further comprising a wand configured for engaging the baffle cover and moving the cover along the top plate between the open and closed positions. ### Claim 24 (depends on 21) The assembly of claim 21, wherein the top plate comprises a central portion and a peripheral flange extending outwardly from the central portion. ### Claim 25 (depends on 24) The assembly of claim 24, wherein a transverse shoulder is formed between the central portion and the flange, and wherein the baffle cover is configured to frictionally engage the transverse shoulder without substantially extending above the flange. ### Claim 26 (depends on 24) The assembly of claim 24, wherein at least a portion of said flange extends outwardly and transversely to, the upright sidewall of the housing. ### Claim 27 (depends on 21) The assembly of claim 21, wherein said baffle cage is configured as a perforated trough. ### Claim 28 (depends on 21) The assembly of claim 21, wherein said filler is configured to retain liquid alcohol by surface tension. ### Claim 29 (depends on 21) The assembly of claim 21, wherein said ceramic fiber is selected from a material having a melting point of about 3000 degrees Fahrenheit. ### Claim 30 (depends on 21) The assembly of claim 21, wherein the liquid alcohol is selected from a material having an evaporation temperature ranging from about 172 degrees to about 176 degrees Fahrenheit. ### Claim 31 (depends on 21) The assembly of claim 21, further comprising a protective enclosure configured to receive the housing therein, said enclosure comprising a top peripheral portion, and wherein the flange is configured to rest on the top peripheral portion suspending the housing within the enclosure. ### Claim 32 (depends on 31) The assembly of claim 31, wherein the enclosure comprises a closed bottom member, an open top and an upwardly extending sidewall member secured to the bottom member, said bottom member comprising an inner bottom part and an outer bottom part spaced from the inner bottom part, and wherein the sidewall member comprises an inner sidewall part and an outer sidewall part spaced from the inner sidewall part, said inner sidewall part being secured to the inner bottom part, and the outer sidewall part being secured to the outer bottom part. ### Claim 33 (depends on 21) The assembly of claim 21, wherein the top plate is provided with an indentation configured to receive a pre-determined quantity of a scented material therein. ### Claim 34 (depends on 21) The assembly of claim 21, wherein the baffle cage extends into the fuel chamber to about one-half depth of the fuel chamber. ### Claim 35 A method of producing a generally rectangular flame pattern in an alcohol burner, comprising the following steps: providing a hollow housing having a fuel chamber defined by a closed bottom plate, a continuous upright sidewall secured to the bottom plate and extending upwardly therefrom, and a top plate resting on said upright sidewall, said top plate being provided with a generally rectangular opening; providing a substantially rectangular baffle cage mounted in the fuel chamber and extending to about one-half depth of the fuel chamber, said baffle cage being provided with a plurality of perforations in a bottom and side walls of the baffle cage and an open top substantially aligned with the rectangular opening of the top plate; providing a ceramic fiber filler deposited in the fuel chamber in a surrounding relationship to the baffle cage, said filler being permeated with liquid alcohol; allowing alcohol vapor to escape from the fuel chamber into the baffle cage and admix with air; and igniting the alcohol vapor in the baffle cage, thereby creating a generally rectangular flame pattern escaping the baffle cage. ### Claim 36 (depends on 35) The method of claim 35, further comprising a step of providing a means of extinguishing flames in the baffle cage. ### Claim 37 (depends on 36) The method of claim 36, wherein said means for extinguishing the flames comprises a step of providing a baffle cover and positioning the cover for sliding movement over the top plate, moving the baffle cover over the rectangular opening, thereby preventing air from entering the baffle cage. ### Claim 38 (depends on 37) The method of claim 37, further comprising a step of providing wand configured for engaging the baffle cover and moving the baffle cover along the top plate between the open and closed positions. ### Claim 39 (depends on 37) The method of claim 37, wherein the top plate comprises a central portion and a peripheral flange extending outwardly from the central portion, wherein a transverse shoulder is formed between the central portion and the flange, and wherein the baffle cover is configured to frictionally engage the transverse shoulder without substantially extending above the flange. ### Claim 40 (depends on 35) The method of claim 35, wherein at least a portion of said flange extends outwardly and transversely to, the upright sidewall of the housing. ### Claim 41 (depends on 35) The method of claim 35, wherein said baffle cage has a generally U-shaped cross-section. ### Claim 42 (depends on 35) The method of claim 35, wherein said filler is configured to retain liquid alcohol by surface tension. ### Claim 43 (depends on 35) The method of claim 35, wherein said ceramic fiber filler is formed from a material having a melting point of about 3000 degrees Fahrenheit. ### Claim 44 (depends on 35) The method of claim 35, wherein the ceramic fiber filler is formed from a material capable of retaining liquid alcohol in the filler by surface tension. ### Claim 45 (depends on 35) The method of claim 35, wherein the liquid alcohol is selected from a material having a evaporation temperature ranging from about 172 degrees to 176 degrees Fahrenheit. ### Claim 46 (depends on 35) The method of claim 35, further comprising a step of providing a protective enclosure configured to receive the housing therein, said enclosure comprising a top peripheral portion, and wherein the flange is configured to rest on the top peripheral portion suspending the housing within the enclosure. ### Claim 47 (depends on 46) The method of claim 46, wherein the enclosure comprises a closed bottom member, an open top and an upwardly extending sidewall member secured to the bottom member, said bottom member comprising an inner bottom part and an outer bottom part spaced from the inner bottom part, and wherein the sidewall member comprises an inner sidewall part and an outer sidewall part spaced from the inner sidewall part, said inner sidewall part being secured to the inner bottom part, and the outer sidewall part being secured to the outer bottom part. ### Claim 48 (depends on 35) The method of claim 35, further comprising a step of providing an indentation in the top plate and depositing a pre-determined quantity of a scented material therein, said material vaporizing when heated by the flames created in the baffle cage.