# US 8,464,703 B2 · Top-burner and cooker comprising the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,703 B2 - Document ID: US8464703B2 - Status: Granted - Kind: B2 - Application number: 12/809,006 - Filed: 2008-12-17 - Published: 2011-05-26 - Granted: 2013-06-18 - Earliest claimed: 2007-12-17 - Assignees: LG Electronics Inc. - Applicants: Jung-Wan Ryu; Dae-Bong Yang; Jae-Hyuk Wie; Yong-Ki Jeong; Jae-Bum Lim; Jun-Ho Seok; Young-Soo Kim; Yang-Ho Kim; Dae-Rae Lee - Inventors: Jung-Wan Ryu; Dae-Bong Yang; Jae-Hyuk Wie; Yong-Ki Jeong; Jae-Bum Lim; Jun-Ho Seok; Young-Soo Kim; Yang-Ho Kim; Dae-Rae Lee - Web page: https://patentgrep.com/patent/US8464703B2 ## CPC - F23D 14/06: with radial outlets at the burner head - F23D 14/26: with provision for a retention flame (pilot flame igniters F23Q9/00) - F23D 2900/14062: for cooking ranges having multiple flame rings - F23D: BURNERS ## Abstract A top burner and a cooker having the top burner are provided. A flame transfer slit for guiding the flame formed by the combustion of the mixed gas at an outer burner to an inner burner. A shielding member is provided to shield the flame transfer slit. Therefore, the object to be heated is uniformly heated and the flame transfer from the outer burner to the inner burner can be effectively realized. ## Claims ### Claim 1 A top burner comprising: a first burner provided with a plurality of flame holes that form flame by combusting mixed gas; a second burner provided with a plurality of flame holes that form flame separated from the flame formed by the flame holes of the first burner by combusting the mixed gas; a flame transfer slit transferring the flame formed through the flame holes of the first burner to the flame holes of the second burner; a first gas chamber formed on an inside of the second burner; and a second gas chamber disposed at a side of the flame holes of the second burner to store mixed gas supplied to the second burner and combusted, wherein the flame transfer slit and the second gas chamber are located such that an angle between a line extending in a length direction of the flame transfer slit and one side of the second gas chamber is less than 10 degrees. ### Claim 2 (depends on 1) The top burner according to claim 1, wherein the flame transfer slit is formed by partly cutting a top surface of the first burner. ### Claim 3 (depends on 1) The top burner according to claim 1, wherein the first burner comprises: a first burner head provided with a plurality of flame hole forming teeth; and a first burner cap provided on a top surface of the first burner head and provided with the flame transfer slit. ### Claim 4 (depends on 3) The top burner according to claim 3, wherein the flame transfer slit extends in a radial direction such that opposite ends thereof are adjacent to the flame holes of the first burner and the flame holes of the second burner. ### Claim 5 (depends on 3) The top burner according to claim 3, wherein the flame transfer slit is formed by partly cutting a top surface of the first burner cap. ### Claim 6 (depends on 1) The top burner according to claim 1, further comprising a shielding member for shielding an upper side of the flame transfer slit. ### Claim 7 (depends on 1) The top burner according to claim 1, further comprising a shielding rib extending in a radial direction from an outer circumference of the second burner cap of the second burner and having a bottom surface spaced apart from the flame transfer slit in a vertical direction. ### Claim 8 (depends on 1) The top burner according to claim 1, further comprising: an extending portion extending upward from a top surface of a first burner cap of the first burner; and a shielding portion provided on a front end of the extending portion and located above the flame transfer slit. ### Claim 9 (depends on 1) The top burner according to claim 1, wherein the second burner comprises: a second burner head provided with a plurality of flame hole forming teeth, the first gas chamber and the second gas chamber; and a second burner cap provided on a top surface of the second burner head. ### Claim 10 (depends on 9) The top burner according to claim 9, wherein at least one side of the gas chamber extends in a radial direction from the second burner head. ### Claim 11 (depends on 1) The top burner according to claim 1, wherein the flame transfer slit and the second gas chamber are located such that an imaginary line extending in a length direction of the flame transfer slit and one side of the second gas chamber are coaxially located. ### Claim 12 A top burner comprising: an outer burner installed on a top surface of a top plate and provided at an edge thereof with a plurality of flame holes that form flame by combusting mixed gas; an inner burner installed on a top surface of the outer burner and provided at an edge located at an inside of the edge of the outer burner with a plurality of flame holes that form flame by combusting the mixed gas; a flame transfer slit that is provided on the outer burner to transfer the flame formed through the flame holes of the outer burner to the flame holes of the inner burner; the inner burner having an inner burner cap; and a shielding rib extending in a radial direction from an outer circumference of the inner burner cap, the shielding rib having a bottom surface vertically spaced from the flame transfer slit. ### Claim 13 (depends on 12) The top burner according to claim 12, Wherein the outer burner comprises: an outer burner head; and an outer burner cap provided on a top surface of the outer burner head, wherein the flame transfer slit extends in a radial direction such that opposite ends thereof are adjacent to the flame holes of the outer burner and the flame holes of the inner burner. ### Claim 14 (depends on 12) The top burner according to claim 12, further comprising a shielding member that is provided at a side of one of the outer and inner burners to shield an upper side of the flame transfer slit. ### Claim 15 (depends on 14) The top burner according to claim 14, wherein the shielding member comprises: an extending portion extending upward from a top surface of an outer burner cap of the outer burner; and a shielding portion provided on a front end of the extending portion and located above the flame transfer slit. ### Claim 16 (depends on 12) The top burner according to claim 12, further comprising a shielding rib extending along the flame transfer slit at a location spaced apart from the flame transfer slit at a side of an outer burner cap of the outer burner. ### Claim 17 (depends on 12) The top burner according to claim 12, further comprising a gas chamber disposed at a side of the inner burner to store the mixed gas that is supplied to the inner burner and combusted. ### Claim 18 (depends on 17) The top burner according to claim 17, wherein the flame transfer slit and the gas chamber are located such that an imaginary line extending in a length direction of the flame transfer slit and one side of the gas chamber are colinear. ### Claim 19 (depends on 17) The top burner according to claim 17, wherein the flame transfer slit and the gas chamber are located such that an angle between an imaginary line extending in a length direction of the flame transfer slit and one side of the gas chamber is less than 10°. ### Claim 20 (depends on 12) The top burner according to claim 12, wherein the inner burner comprises: an inner burner head having a gas chamber storing the mixed gas that is supplied to the inner burner and combusted; and an inner burner cap provided on a top surface of the inner burner head, wherein at least one side of the gas chamber extends in a radial direction from the inner burner head. ### Claim 21 (depends on 20) The top burner according to claim 20, wherein the gas chamber is located at a portion except for an edge of the inner burner head where the flame holes of the inner burner are formed. ### Claim 22 (depends on 20) The top burner according to claim 20, wherein the flame transfer slit and the gas chamber are located such that an imaginary line extending in a length direction of the flame transfer slit and one side of the gas chamber are coaxially located. ### Claim 23 (depends on 20) The top burner according to claim 20, wherein the flame transfer slit and the gas chamber are located such that an angle between an imaginary line extending in a length direction of the flame transfer slit and one side of the gas chamber is less than 10°.