Patent ID: 8221116

Claim:
A gas burner provided with a plurality of concentric and circular flame crowns, said gas burner comprising: a first central burner configured to supply a first peripheral flame ring; a second annular burner surrounding said first central burner at a predetermined distance so as to form a substantially ring shaped chamber having an inner wall and an outer wall, and configured to supply at least a second peripheral flame ring; a burner body configured to be mounted on a surface of a cooking hob; a first gas inlet in communication with said burner body, a first gas injector having a vertically oriented axis; said first central burner having a first chamber configured to diffuse an air/gas mixture, said first chamber having a top and a plurality of ports configured and arranged so as to let the air/gas mixture out, being placed on an upper edge of said first burner, and having said top of said first chamber closed by a first cover; and a second gas inlet in communication with said burner body, wherein said substantially ring shaped chamber of said second annular burner includes a first chamber and a second chamber, said first and second chambers being separate chambers and being configured to diffuse the air/gas mixture, each chamber of said first and second chambers having a top and a plurality of ports configured and arranged so as to let the air/gas mixture out, and being placed on an upper edge of said second annular burner, and said top of each of said first and second chambers being closed by a second cover, wherein said second gas inlet is in communication with said first and second separate chambers through an injection and conveying device, said injection and conveying device comprising: a first injector and a second injector, said first and second injectors being distinct and being in communication with said second gas inlet; and first and second Venturi pipes horizontally disposed, each of said first and second Venturi pipes being configured to supply the air/gas mixture to said first and second diffusion chambers, respectively wherein said first and second diffusion chambers are physically separate and not in communication to each other, wherein said first and second injectors are horizontal and separate from each other injector and are placed on a first end of said second gas inlet wherein said first and second injectors are placed in a lower portion of said burner body and substantially in a portion of a first side of said burner body, and are oriented towards a second side of said burner body, said second side being opposite said first side and wherein said horizontal first and second injectors separate from said second gas inlet with an acute angle.