Filter apparatus

F - Mech Eng,Light,Heat,Weapons – 24 – F

Patent

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Details

F24F 3/16 (2006.01) A61L 9/20 (2006.01)

Patent

CA 2617288

A ventilation system has a filter apparatus which comprises a porous filter media (10) arranged to trap micro-organisms contained in a fluid flow along a duct (14) of the apparatus, and a lamp (13) for irradiating the filter media (10) with ultraviolet light, the filter media (10) being formed of a fluroplastics material which is substantially transparent to the ultraviolet light so that micro-organisms trapped inside the pores of the filter are irradiated and killed by the ultraviolet light. The ventilation system alternatively or additionally comprises a filter apparatus which comprises a porous filter media (40) formed of an electrically conductive material arranged to trap micro-organisms contained in a fluid flow along a duct (42) of the apparatus, and a coil (25) for irradiating the filter media (40) with electromagnetic radiation so as to heat the filter media (45) and thereby kill any micro-organisms trapped by the filter media (40).

L'invention concerne un système de ventilation comprenant un appareil de filtrage composé d'un milieu filtrant (10) poreux agencé afin de piéger les micro-organismes contenus dans un écoulement fluidique le long d'un conduit (14) de l'appareil, et d'une lampe (13) destinée à irradier le milieu filtrant (10) à l'aide d'une lumière ultraviolette, ledit milieu filtrant (10) étant formé d'un matériau fluoroplastique qui est sensiblement transparent à la lumière ultraviolette de sorte que les micro-organismes piégés dans les pores du filtre sont irradiés et tués à l'aide de la lumière ultraviolette. Ledit système de ventilation peut comprendre de manière alternative ou additionnelle un appareil de filtrage composé d'un milieu filtrant (40) poreux formé d'un matériau électroconducteur agencé afin de piéger les micro-organismes contenus dans un écoulement fluidique le long d'un conduit (42) de l'appareil, et d'une bobine (25) destinée à irradier le milieu filtrant (40) à l'aide d'un rayonnement électromagnétique afin de chauffer le milieu filtrant (45) et ainsi de tuer les micro-organismes piégés par ledit milieu filtrant (40).

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