Patent ID: 11953198
Assignee: LAMPLIGHT FARMS INCORPORATED
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. A fire pit comprising:
a combustion chamber having at least one wall defining an inner chamber;
at least one primary air aperture defined through the inner chamber wall at a first, lower level;
at least one secondary air aperture defined through the inner chamber wall at a second, upper level;
a fuel grate supported within the inner chamber at a level between the lower level and the upper level;
a shroud surrounding the at least one wall and being spaced apart therefrom to define an intake chamber;
wherein solid fuel supported by the fuel grate, when combusted, is provided primary combustion air from below the fuel grate by the primary air apertures and provided secondary combustion air from above the solid fuel by the secondary air apertures, the secondary combustion air promoting combustion of unburned gasified combustibles rising within the inner chamber;
wherein the at least one wall is formed into a frustoconical configuration with a narrower upper end and a wider bottom end;
wherein the shroud defines at least one aperture for admitting air to the intake chamber from outside the firepit; and
wherein the shroud comprises a frustoconical configuration with a taper opposite a taper of the at least one inner wall.