Patent ID: 9702551
Date: 2017-07-11
CPC Classifications: F23D,F24C

Claim:
1. A multi-ring gas burner, comprising: an inner burner; an outer burner ring extending around the inner burner, the outer burner ring including a burner base, a burner head and a cap, the burner head positioned on the burner base such that the burner base and the burner head define a fuel chamber of the outer burner ring between the burner base and the burner head, a plurality of flame ports formed on the burner head, the plurality of flame ports extending from the fuel chamber of the outer burner ring to an outer portion of the outer burner ring, the cap positioned on the burner head such that the burner head and the cap defining a plurality of secondary air channels between the burner head and the cap, an exit of each secondary air channel of the plurality of secondary air channels positioned proximate the outer portion of the outer burner ring, air within the plurality of secondary air channels assisting with cooling the burner head, the cap, or both the burner head and the cap, wherein the burner head is positioned on the burner base such that the burner base and the burner head also define a plurality of retention ports between the burner base and the burner head, the plurality of retention ports positioned adjacent a bottom of the plurality of flame ports or below the plurality of flame ports.