Barbecue firebox and method of operation
OwnerWilliam H. Karauinventor
Life of this patent
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Abstract
A barbecue cooking apparatus is provided. The barbecue cooking apparatus includes a firebox comprising a housing having solid walls. A charcoal tray is disposed within the housing, and one or more vents are disposed in the housing above the charcoal tray. One or more vents are disposed in the charcoal tray. An upper interior chamber within the housing above the charcoal tray is configured to hold wood and charcoal. A lower interior chamber within the housing below the charcoal tray is configured to provide a volume for the collection of wood ash. A duct is attached to the housing and forms a passageway from the lower interior chamber for heated air and wood smoke.
Claims14
1-18. (canceled)
A cooking apparatus comprising:
- a firebox comprising:
- an upper chamber;
- a vent located at a lower position in the upper chamber configured to admit fresh combustion air directly to a fuel source;
- a lower chamber below the fuel source configured to provide for the collection of ash;
- and
- a duct attached to the lower chamber and forming an isolated passageway from the lower chamber to a cooking chamber for combustion gases, the duct being located away from the lower chamber area where the ash is collected;
- wherein the firebox is configured to force combustion gases withdrawn via the duct to first pass downward, in opposition to a natural upward draft.
A method of cooking comprising:
- forcing combustion gases downwards from a fuel source in opposition to a natural upward draft;
- drawing the combustion gases through a duct;
- and
- providing the combustion gases to a cooking chamber.
A cooking apparatus comprising:
- an upper chamber;
- a vent located at a lower position in the upper chamber configured to admit fresh combustion air directly to a fuel source;
- a lower chamber below the fuel source configured to provide for the collection of ash;
- and
- a duct attached to a sidewall of the lower chamber and forming an isolated passageway from the lower chamber to a cooking chamber for combustion gases, the duct being located away from the lower chamber area where the ash is collected;
- wherein the cooking apparatus is configured to force combustion gases withdrawn via the duct to first pass downward, in opposition to a natural upward draft.
Dependencies are inferred from the claim text.