US 12,220,504 B1
Gas irradiation apparatus
Stanley W. Ellis, Bakersfield, CA (US); Mitchell Caughron, Bakersfield, CA (US); Nicholas Acosta, Bakersfield, CA (US); and James Lawrence LaBelle, Corona, CA (US)
Assigned to Environmental Technologies, LLC, Bakersfield, CA (US)
Filed by Environmental Technologies, LLC, Bakersfield, CA (US)
Filed on Jul. 3, 2024, as Appl. No. 18/763,962.
Int. Cl. A61L 9/20 (2006.01); A62B 18/02 (2006.01)
CPC A61L 9/20 (2013.01) [A62B 18/02 (2013.01); A61L 2209/111 (2013.01); A61L 2209/12 (2013.01); A61L 2209/14 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A gas irradiation apparatus comprising:
a housing assembly comprising a gas inlet and a gas outlet;
an irradiation chamber assembly comprising a first chamber and an adjacent second chamber, the irradiation chamber assembly disposed within the housing assembly, the irradiation chamber connected to the gas inlet and the gas outlet;
an intermediate wall which spans across an interior of the irradiation chamber assembly thereby dividing the first chamber from the second chamber, the intermediate wall comprising a circumferential edge which seals against an inside surface of the irradiation chamber assembly, the intermediate wall comprising a conduit extending between the first chamber and the second chamber, the conduit being an exclusive flow path for a flow of gas between the first chamber and the second chamber;
a gas transfer fan disposed within the conduit, the gas transfer fan configured to create a pressure differential between the first chamber and the second chamber and thereby induce a flow of a gas between the first chamber and the second chamber through the conduit;
an array of light emitting diodes disposed on a heat sink, the array of light emitting diodes configured to provide UVC light radiation into the irradiation chamber assembly; and
an auxiliary cooling fan disposed within a cavity between an exterior of the irradiation chamber assembly and an interior wall of the housing assembly, the auxiliary cooling fan adjacent a cooling gas intake, the auxiliary cooling fan configured to draw a cooling gas through the cooling gas intake and direct the cooling gas over the array of light emitting diodes and the heat sink, wherein the cooling gas intake and the exterior of the irradiation chamber assembly are configured so that the cooling gas is prevented from entering an interior of the irradiation chamber assembly and mixing with any gas which has entered the interior of the irradiation chamber assembly.