# US 6,296,475 B1 · Gas burner having synchronous ignition and gas supply functions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,296,475 B1 - Document ID: US6296475B1 - Status: Granted - Kind: B1 - Application number: 09/481,383 - Filed: 2000-01-12 - Granted: 2001-10-02 - Earliest claimed: 2000-01-12 - Inventors: Chin-Lin Tsai - Web page: https://patentgrep.com/patent/US6296475B1 ## CPC - F23D 14/28: in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas - F23D 14/18: using catalysis for flameless combustion - F23D 14/38: Torches, e.g. for brazing or heating (nozzles F23D14/48) - F23D 14/465: {for torches (F23D14/52 takes precedence)} - F23Q 2/287: {piezoelectric} - 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 ## Abstract A gas burner having synchronous ignition and gas supply functions includes a gas storing tank, a gas supply device, a housing, an ignition device, a retaining device, and a burning device. When a press button is pushed, the piezoelectric device is compressed so that a transverse rod is pushed by a push piece to cause a sliding piece and a driven piece to synchronously displace and a shaft spring to retract. The press button enters a wider portion of a lock-shaped hole via a narrower portion. A button spring stretches to cause the press button to be retained in the lock-shaped hole and extend from a piece hole. A gas nozzle is pulled out by a connecting groove for supply of fuel gas via the gas supply device to the burning device. Sparks generated by a lead wire ignites the fuel gas mixture. ## Claims ### Claim 1 A gas burner having synchronous ignition and gas supply functions, comprising: a housing connected to a gas storing tank and a burning device, said gas storing tank having a gas outlet nozzle connected to a gas supply device to deliver fuel gas to said burning device, said housing having a top portion with a housing chamber containing a piezoelectric ignition device, one side being provided with a lock-shaped hole with a retaining device; a plurality of air vents formed in said housing for entry of air into said housing and through a clearance between said gas supply device and said burning device into said burning device along with the fuel gas; said piezoelectric ignition device having a push key; a lead wire of the piezoelectric ignition device extending to said burning device; said retaining device including a sliding piece and a driven piece butt joined on sides of said lock-shaped hole, with a press button having a button spring; a connecting groove at a rear end of said sliding piece connecting said gas outlet nozzle, a top portion thereof being provided with a transverse block that abuts against a push piece, a front end thereof being provided with a piece shaft connected with a shaft spring; and said driven piece having a piece hole corresponding to said press button, whereby when said press button is pushed, said piezoelectric ignition device is compressed so that said transverse block is pushed by said push piece to cause said sliding piece and said driven piece to be synchronously displaced and the shaft spring to retract, said press button entering a wider portion of said lock-shaped hole via a narrower portion, said button spring stretching to cause said press button to be retained in said lock-shaped hole and extend from said piece hole, a gas nozzle being pulled out by said connecting groove for supply of fuel gas via said gas supply device to said burning device, sparks generated by said lead wire igniting the fuel gas mixture. ### Claim 2 (depends on 1) The gas burner as defined in claim 1, wherein said gas outlet nozzle is connected to a gas adjusting ring which has a gas adjusting rod extending from a curved groove of said housing, said gas adjusting rod being adjustable to regulate the flow of fuel gas. ### Claim 3 (depends on 1) The gas burner as defined in claim 1, wherein said gas supply device includes a flexible gas guide tube connected between said gas outlet nozzle and said gas nozzle. ### Claim 4 (depends on 1) The gas burner as defined in claim 1, wherein said housing has a front end provided with a tube groove for connection with said gas supply device, a clearance being defined between said tube groove and said insert groove to facilitate entry of air into said burning device. ### Claim 5 (depends on 1) The gas burner as defined in claim 1, wherein said housing has a connecting portion provided at a front end of a bottom portion pivotally connected with a leg support, said leg support being closable or extendable with respect to said housing. ### Claim 6 (depends on 1) The gas burner as defined in claim 1, further comprising a gas control button including a shielding piece extending from a bottom portion thereof and a press spring, said housing having a button groove formed in an upper portion for receiving said gas control button, whereby when said gas control button is pressed, said shielding piece shields said gas nozzle to stop the supply of fuel gas. ### Claim 7 (depends on 1) The gas burner as defined in claim 1, wherein said push key has a top portion provided with a key button to facilitate manipulation. ### Claim 8 (depends on 1) The gas burner as defined in claim 1, wherein said piezoelectric ignition device further has a return wire. ### Claim 9 (depends on 1) The gas burner as defined in claim 1, wherein said press button has a button rod at a rear end connected to said button spring and is disposed in a button chamber of said sliding piece, with a button end at a front end received in said piece hole of said driven piece, a tapered disk at an intermediate section displacing through said narrower portion of said lock-shaped hole into said wider portion to thereby position said sliding piece and said driven piece in said lock-shaped hole, said button spring stretching and extending from said piece hole of said button end. ### Claim 10 (depends on 9) The gas burner as defined in claim 9, wherein a surface of said driven piece is provided with a projection that has a height greater than the greatest height of the button end extending from said piece hole to avoid contact therewith. ### Claim 11 (depends on 1) The gas burner as defined in claim 1, wherein said burning device includes a mixing tube secured in said tube groove of said housing, a flame nozzle being disposed in a heat insulating sleeve and connected to said mixing tube to eject the mixture of fuel gas. ### Claim 12 (depends on 1) The gas burner as defined in claim 1, further comprising an external tube device and an internal burning device, said external tube device including a metallic outer tube connected to a front end of said housing, a metallic inner ring disposed in an outer ring and connected to said front end of said housing, said internal burning device including an inner tube disposed in an outer tube and extending from a free end. ### Claim 13 (depends on 12) The gas burner as defined in claim 12, wherein said inner tube has a catalyzer disposed inside to achieve a preferred internal burning effect. ### Claim 14 (depends on 13) The gas burner as defined in claim 13, wherein said catalyzer is in a curled state. ### Claim 15 (depends on 12) The gas burner as defined in claim 12, wherein a front end of said inner tube is connected to a soldering iron to serve as a soldering device. ### Claim 16 (depends on 1) The gas burner as defined in claim 1, further comprising a hood connected to said front end of said housing to cover exposed components. ### Claim 17 (depends on 16) The gas burner as defined in claim 16, wherein said hood is formed with a plurality of heat dissipating slots.