Downdraft barbecue
AssigneeAdly Chamy
InventorThierry Pibernat
Life of this patent
Estimating the term…
Abstract
The more or less greasy food to be grilled on the barbecue is placed on a grill above the burning coal. The coal is carried by an air-permeable support. Smoke, produced by the grease drops falling on the burning coal, is prevented from reascending and consequently from contacting the food to be grilled by a suction, carried out at the level of the coal support. This suction is carried out by creating a rising gas flow current in the thermally-conducting exhaust conduit. The conduit is heated by the coal itself used for producing the heat under the grill. The conduit communicates with a chamber, where the upper wall of the chamber forms the coal support. The rising gas flow current in the exhaust conduit produces a suction in the up-down sense of direction at the level of the coal support.
Claims18
Portable or fixed barbeque of the type comprising a coal support, permeable to air, to carry the coal or equivalent to be burned, below which is disposed an exhaust chamber and above which is disposed a grill carrying food to be grilled, wherein attached to the coal support is an upper wall having two sides, one side facing the coal support and exposed to radiant heat from said coal support, and a second side forming an interior wall of a rising exhaust conduit, where the upper wall is thermally conductive such that during operation of the barbeque combustion air descends through the coal support due to suction in the exhaust chamber caused by heated air rising in the exhaust conduit.
Portable or fixed barbecue of the type comprising a coal support, permeable to air, to carry the coal or equivalent to be burned, below which is disposed an exhaust chamber and above which is disposed a grill carrying food to be grilled, wherein said coal support includes a wall of said exhaust chamber in communication with a rising exhaust conduit, where said wall of the chamber is thermally conductive and is attached to the coal support and has two sides, one side facing the coal and a second side forming an interior wall of said exhaust conduit, wherein a lower part of the said conduit is vertical or inclined, where said lower part is attached to the chamber;
- wherein a second part inclined toward the chamber is attached, at the upper end of said lower part, and
- wherein a third part is attached vertical at an upper end of the second part.
A barbecue of the type comprising an air-permeable support to carry coal to be burned;
- an exhaust chamber disposed below said coal support;
- a grill disposed above said coal support to carry food to be grilled;
- wherein drops of fat fall onto the burning coal and thereby produce smoke;
- and wherein the barbecue comprises, for preventing the smoke from rising and thereyby contacting the food to be grilled, the following elements a chamber forming a coal support;
- an upper wall having two sides attached to the chamber;
- an exhaust conduit, where the exhaust conduit is attached to one side of the upper wall and disposed opposite to the coal support which is attached to the second side of said upper wall, wherein the exhaust conduit is thermally conductive at least on a side close to the coal support, and wherein the exhaust conduit communicates, on the one hand, with the chamber and, on the other hand, with the atmosphere, wherein a rising hot-air current is created in the exhaust conduit provoking a reduced pressure in the chamber and, consequently, a suction in a downward direction down through the coal support thereby forcing said smoke to descend into the chamber from where it is evacuated upwardly by the exhaust conduit through the effect of the hot air current.
Dependencies are inferred from the claim text.