Filter apparatus and method

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/18 (2006.01) B01D 46/00 (2006.01) B01D 46/44 (2006.01) F24F 13/28 (2006.01)

Patent

CA 2738629

An air filter system for installation within the air inlet duct for an air conditioning system has a pair of mandrels that establish sufficient friction force when a web of fresh filter fabric is drawn from a supply roll to eliminate most undesirable wrinkles and slackness in the web. The "pop-off" feature of the fresh filter fabric supply and contaminated filter fabric storage magazines with a removable side enable a fresh roll of filter fabric to be installed in the system with minimal disagreable effort. A peripheral step that protrudes from the base of the system enables the system to be adaptable to many existing air conditioner ducting structures. A back-up secondary filter, preferably treated with the activated carbon, permits less-than-particulate contamination, e.g. odors and noxious gases to be removed from the incoming air stream. Electrical circuits that control the sequential cycles for replacing the filter fabric webs, signals each progressive cycle and provide system condition cues are also described.

Linvention concerne un système de filtration dair destiné à être installé dans le conduit dentrée dair dun système de climatisation de lair, qui contient une paire de mandrins qui établissent une force de friction suffisante lorsquune bande de tissu de filtration frais est déroulée dun rouleau dalimentation pour éliminer la plupart des plis et du relâchement indésirables de la bande. La fonctionnalité douverture des contenants dalimentation du tissu de filtration frais et de stockage du tissu de filtration contaminé à côté amovible permet linstallation dun rouleau frais de tissu de filtration dans le système avec un effort désagréable minimal. Un palier périphérique qui dépasse de la base du système permet au système dêtre adaptable à de nombreuses structures de conduites de climatiseurs dair existantes. Un filtre secondaire de secours, de préférence traité avec du charbon actif, permet lélimination dune contamination sous-particulaire, p. ex. dodeurs et de gaz nuisibles, du courant dair entrant. Linvention concerne également des circuits électriques qui contrôlent les cycles séquentiels pour le remplacement des bandes de tissu de filtration, signalent chaque cycle progressif et fournissent des indices de létat du système.

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