Patent ID: 6053968
Filing Date: 2000-04-25
Classification: A61L,F24F

Abstract:
A lightweight, portable room air purification device comprising:a multi-part cylindrical housing assembly having an upper portion and a lower portion, operable when in a joined orientation, having an ultraviolet purification section and a particle filtration section;said ultraviolet purification section including an internal reflective chamber, an air exhaust port at a first end, an air intake port at a second end, and ultraviolet light for irradiation of said internal reflective chamber, said air exhaust port constructed and arranged to transfer air from within said reflective chamber in an arc measuring substantially three hundred sixty degrees with respect to a central axis of said housing assembly, and said air intake port constructed and arranged to transfer air into said reflective chamber through an arc measuring substantially three hundred sixty degrees with respect to said central axis of said housing assembly;said particle filtration section including a HEPA filtration device releasably positioned between said reflective chamber and said air intake means for retention of particulate matter therein, said HEPA filtration device being irradiated by said ultraviolet light source during use;an air circulation assembly defined by an electrically operated motor and fan in fluid communication with said housing assembly for maintaining air flow therethrough;first and second baffling means each respectively juxtaposed with one of said ports and operative to provide ultraviolet light dispersion for destruction of airborne organisms, and to prevent UV light from being visible outside of said housing, said first baffling means including a blocking shell extending from a lower circumferential edge of said upper portion, and a substantially-U-shaped flange extending from an upper circumferential edge of said lower portion, said blocking shell and flange constructed and arranged in a nested relationship effective to block UV radiation passage therethrough, said second baffling means including a blocking wall that extends radially within said housing chamber, and a contoured blocking trough constructed and arranged to cooperate in a nested arrangement with said blocking wall effective to prevent UV radiation passage therethrough; anda safety interlock device constructed and arranged so as to prevent operation of the device when said housing assembly is in a disassembled orientation.