Patent ID: 7640929

Claim:
A cooking chamber of a barbecue grill assembly, the cooking chamber comprising: a discontinuous internal lip depending from an internal surface of the cover, the internal lip defining a grease control surface; a firebox having a rim, the rim defining a perimeter of the firebox; the internal cover lip being positioned inward of the firebox perimeter; the cover having a lower edge region that defines a lower periphery of the lid, the cover having a hood that extends from a portion of the lower edge region, the hood being disposed at a higher elevation than a remaining portion of the lower edge region whereby a passageway is formed between the hood and the rim of the firebox to provide a vent for the cooking chamber; the internal lip comprising at least a first lip and a second lip, the second lip depending from the hood and the first lip depending from the remaining portion of the lower edge region, whereby the second lip is positioned generally upwardly and inwardly from the first lip; the first and second lips at least partially overlapping, whereby the internal lip provides grease control about the entire circumference of the cover; wherein a cooking grate is positioned in the cooking chamber, the cooking grate has a perimeter defined at least in part by a ridge, the grate ridge has a sloped configuration and the internal cover lip is positioned directly over the sloped ridge to direct grease generated during operation of the grill assembly from the cover onto the ridge.