Filter for removing contaminants from an enclosure

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/10 (2006.01) B01D 39/16 (2006.01) B01D 46/12 (2006.01) B01D 53/02 (2006.01) B01D 53/04 (2006.01) G11B 25/04 (2006.01) G11B 33/14 (2006.01)

Patent

CA 2381130

The invention relates to a device for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as electronic or optical devices susceptible to contamination (e.g. computer disk drives) by incorporating multiple filtration junctions into a unitary filter. Filtration functions include a combination of inlet, or breather, filter and recirculation filter. Moreover, adsorbent functions can be added to the filter depending on desired functionality within the enclosure.

La présente invention concerne un dispositif destiné au filtrage de contaminants et notamment particulaires ou en phase vapeur. On recherche ainsi à supprimer ces contaminants dans des environnements confinés, notamment des appareils électroniques ou optiques sensibles à la contamination tels que les disques d'ordinateur. A cet effet, on incorpore plusieurs fonctions de filtrage dans un même filtre. Les fonctions de filtration incluent une combinaison d'une entrée ou reniflard, un filtre et un filtre de recyclage. On peut également ajouter au filtre des fonctions d'adsorption suivant les fonctionnalités attendues à l'intérieur de l'enceinte.

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