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US 12,392,493 B2Granted
Smokeless fire pit
AssigneeBioLite LLC
InventorsAlexander H. Drummond, Jonathan N. Cedar, Timothy M. Connelly, Venkatesh R. Iyer, David Ryan Gist, Melinda Abbruzzi, Benjamin E. Zelnick, Steven Michael Grind
Life of this patent
Estimating the term…
Abstract
A combustion device includes a combustion chamber with an outer wall enclosing a combustion space that can contain a fuel source on an adjustable fuel rack, side walls, a lower air jet tube and at least one air upper jet tube, a top opening, a grill top assembly to cover the opening, and a detachable power module. The power module can have batteries and a blower. The blower can force ambient air into a manifold, through the jet tubes, through ports in the jet tubes, and into the combustion chamber.
Claims22
A combustion device comprising:
- a combustion chamber defined by walls, and having perforations within at least one portion of at least two of the walls, the perforations facilitating air flow directly between an interior of the combustion chamber defined by a first surface of at least one wall of the at least two walls and an ambient environment outside of the combustion device defined by a second surface of the at least one wall that is opposite the first surface of the at least one wall, the at least one wall further defining an exterior wall of the combustion device;
- an air jet tube assembly having ports each in communication with the combustion chamber;
- and
- a blower operatively connected to the air jet tube assembly, whereby when the blower is turned on, air from the blower is forced through the air jet tube assembly, through the ports, and into the combustion chamber,
- wherein the walls define a pair of opposing side walls and a pair of opposing end caps and wherein the perforations are located on at least one of (a) the pair of opposing sidewalls and (b) the pair of opposing end caps, and
- wherein the jet tube assembly comprises (a) at least one lower air jet tube having at least one lower port in communication between an interior of the lower air jet tube and the combustion chamber, the at least one lower port being in a lower region of the combustion chamber, and (b) at least one upper air jet tube having at least one upper port in communication between an interior of the upper jet tube and the combustion chamber, the at least one upper port being in an upper region of the combustion chamber.
3 more elements
A combustion device comprising:
- a combustion chamber defined by a plurality of walls, between an interior of the combustion chamber and an ambient environment outside of the combustion device;
- a blower operatively connected to the combustion chamber, whereby when the blower is turned on, air from the blower is forced into the combustion chamber;
- and
- a power module and a battery within the power module, the battery being selectively connectable to the blower to provide power to the blower.
1 more element
A combustion device comprising:
- a combustion chamber defined by a plurality of walls, and having perforations within at least one of the walls between an interior of the combustion chamber and an ambient environment outside of the combustion device;
- an air jet tube assembly having ports each in communication with the combustion chamber;
- and
- a blower operatively connected to the air jet tube assembly, whereby when the blower is turned on, air from the blower is forced through the air jet tube assembly, through the ports, and into the combustion chamber, wherein a flow rate of air from the blower into the combustion chamber is controllable by adjusting the speed of the blower, and wherein the speed of the blower is adjustable through a wireless connection.
1 more element
A combustion device comprising:
- a combustion chamber defined by a plurality of walls, and having perforations within at least one of the walls between an interior of the combustion chamber and an ambient environment outside of the combustion device;
- at least one lower air jet tube having at least one lower port in communication between an interior of the lower air jet tube and the combustion chamber, the at least one lower port being in a lower region of the combustion chamber;
- at least one upper air jet tube having at least one upper port in communication between an interior of the upper jet tube and the combustion chamber, the at least one upper port being in an upper region of the combustion chamber;
- a blower operatively connected to the air jet tubes;
- and
- a manifold in fluid communication between the blower and the jet tubes, whereby when
- the blower is on, air from the blower is forced through the manifold, through the jet tubes, through the ports, and into the combustion chamber, wherein the flow rate of air from the blower into at least one jet tube is controllable by adjusting a baffle between the manifold and the at least one jet tube.
4 more elements
Dependencies are inferred from the claim text.