Sealed gas burner assembly

A sealed gas burner adapted for extending up through an aperture in a main top, said burner comprising:

• a ring portion seated on the main top peripherally around the aperture and forming a substantially liquid tight seal with the main top, said ring portion having a raised lip to provide an annular dam around the aperture to prevent liquid on the main top from running down through the aperture;
• a burner body having a sidewall with an open top, said burner body being supported by said ring portion at spaced locations to provide therebetween passageways from underneath the main top up between said ring portion and said burner body;
• and
• a cap seated on said burner body to form with said burner body a chamber having a plurality of ports, said chamber being adapted for receiving a mixture of fuel and primary combustion air which issues through said ports and ignites to provide a cooking flame wherein at least a portion of secondary combustion air for said flame is supplied from underneath the main top through said passageways between said ring portion and said burner body.

A gas surface cooking appliance comprising:

• a main top having at least one surface burner aperture;
• a sealed gas surface burner extending up through said aperture of said main top, said burner comprising an annular seal member seated on said main top peripherally around said aperture and forming a substantially liquid tight seal with said main top, said annular seal member having a raised shoulder forming an annular dam to prevent liquid on said main top from running down through said aperture in said main top;
• said burner further comprising a burner body and cap forming a chamber with ports, said burner body being supported by said annular seal member at spaced locations around said seal member to form passageways from underneath said main top between said spaced locations;
• means for supplying a mixture of fuel and primary combustion air to said chamber, said mixture issuing from said ports;
• and
• means for igniting said mixture issuing from said ports to produce a cooking flame that receives secondary combustion air through said passageways from underneath said main top.

A method of fabricating a gas surface cooking appliance comprising the steps of:

• connecting a venturi assembly having an outlet to a bracket;
• mounting said bracket in a burner box;
• positioning a main top having an aperture aligned with said venturi outlet over said burner box;
• seating an annular seal ring on said main top around the periphery of said aperture;
• seating a burner body of a burner on a plurality of upwardly extending bosses of said annular ring wherein passageways from underneath said main top are formed through said aperture and up between said bosses;
• driving screws down through said burner body and into said bracket wherein said annual seal ring is sandwiched between said burner body and said main top to form a substantially liquid tight seal between said annular ring and said main top;
• and
• positioning a cap on said burner body.