Patent ID: 6217315
Filing Date: 2001-04-17
Classification: F23Q

Abstract:
A liquid fuel burner comprising:a fuel tank containing fuel to be burned and having a bottom wall and side walls terminating in an upper perimeter and having a top wall spanning the upper perimeter of the side walls and having a portion with a substantially planar surface extending normal to the side walls;a wick extending into the fuel tank through a first opening formed in and extending through the substantially planar surface portion of the top wall for burning liquid fuel drawn up therethrough by capillarity,an air passage communicating through a second opening formed in and extending through the substantially planar surface portion of the top wall which is separate from and laterally spaced from the first opening between an interior of the fuel tank and external air at least during burning, anda cap movable between open and closed positions and attached to the fuel tank in both the open and closed positions, the cap having an internal space and a seal at an open end of the cap surrounding an opening to the internal space, the seal engaging the substantially planar surface portion of the top wall in the closed position of the cap to enclose the wick in the internal space and to seal the first and second openings from external air when the burner is not in use.