Gas burner

Abstract

What is shown is an improved gas burner assembly that is easily adapted to attach to a range top or cooktop, or the floor of the range and can draw air from either above the range top level by external vents or from below range top level through an open style mixing cup. The improved gas burner assembly uses a plurality of flame rings providing the user a wide variety of temperature settings starting from a low intensity simmer to high intensity cooking heat. A gas transfer channel provides a sustaining ignition source. The gas transfer channel has sustaining flame buttons interior to the burner body, and provides the initial ignition for the main flame rings. The gas transfer channel additionally has slots that provide additional sustaining flames for the main flame rings located on the exterior of the burner body. The improved gas burner assembly additionally uses a cover plate of transparent or translucent, heat proof material that allows the user to observe the interior of the burner to which flame rings have ignited. The cover plate also transfers heat from the internal flame rings to the cooking utensil imparting a more uniform transfer of heat to the cooking utensil.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates to the field of gas burners that are used in the home. Specifically, these burners are used on surface units in household gas cooking appliances.SUMMARY OF THE INVENTION[0002]Atmospheric gas burners commonly used as surface units in household gas cooking appliances generally come in different sizes. The actual physical size of the burner as well as its energy output, which is referred to as BTU's, (British thermal units) are two of many design elements that are used to size the gas burners. The various burner sizes are needed to cook the myriad number of food items that are cooked in different sizes and shapes of cooking containers to satisfy the countless taste requirements of the population.[0003]Gas burners have typically a maximum energy output, which is specified in BTU's, and a minimum energy output, also specified in BTU's. To regulate this energy output the gas flow to each burner is control...

AI Technical Summary

Benefits of technology

[0004]Generally, the current state of the art of surface mounted gas burners permit a minimum flow adjustment that is at fifteen percent (15%) of the maximum flow adjustment. There are burners, however, that have a minimum adjustment less than fifteen percent (15%) of the maximum flow adjustment and there also are burners that have a minimum energy flow setting that is greater than fifteen percent of the maximum flow adjustment. Therefore, in order to perform a cooking operation that requires a small BTU energy flow, such as melting chocolate without boiling and burning the chocolate, another burner is required that has a small burner body and its own discrete gas valve. That will make the low BTU energy flow requirement possible when the burner's valve is adjusted to its minimum flow setting.

[0010]In accordance with another aspect of the present invention, the centrally located burner body of the burner assembly is much smaller than the outer burner body. This difference in size makes it possible to have a greater range in maximum and minimum BTU energy output.

[0012]In accordance with a further aspect of the invention, a cover may be installed on the top side of the burner cap and above the inner burner body. This cover may have a transparent or translucent insert that allows the visual observation of the flame on the inner burner body. This cover, when installed, will also more evenly distribute and disperse the heat from the inner burner when the inner burner is operating by itself.

[0013]In accordance with yet a further aspect of the invention, the burner assembly includes a mixing cup with orifice fittings to supply gas to the two burner bodies. The mixing cup is in fluid communication with a gas valve that allows the regulation of a gas supply to both the inner and outer burner bodies and therefore regulate the maximum and minimum BTU energy output of both burner bodies.

Problems solved by technology

Prior such devices were fabricated using welds, which fail over prolonged use.

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