Exhaust flue cap and filter device for a gas fired appliance

F - Mech Eng,Light,Heat,Weapons – 23 – G

Patent

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Details

F23G 7/07 (2006.01) F23J 15/02 (2006.01) F23L 17/02 (2006.01)

Patent

CA 2700600

An exhaust flue cap and filter device (10) for a gas fired appliance in communication with an exhaust flue opening having an outer pipe (13) and a coaxial liner (14). The device includes a tubular cap (16) with an open lower end (18), an opposed open upper end (20), and a plurality of ventilation holes (22) wherein the cap is receivable over the flue opening. A removable top (24) is attached to and closes the open upper end of the tubular cap. A filter tray (40) having a smaller diameter than the tubular cap includes a ledge (44) extending radially inward from the tray. A removable catalytic converter filter insert (50) within the tubular cap is supported on the ledge.

L'invention porte sur un dispositif de chapeau et de filtre de conduit de cheminée (10) pour un appareil chauffé au gaz en communication avec une ouverture de conduit de cheminée ayant un tuyau externe (13) et une chemise coaxiale (14). Le dispositif comprend un chapeau tubulaire (16) avec une extrémité inférieure ouverte (18), une extrémité supérieure ouverte opposée (20), et une pluralité de trous de ventilation (22), le chapeau pouvant être reçu sur l'ouverture de conduit. Une partie supérieure amovible (24) est fixée à l'extrémité supérieure ouverte du chapeau tubulaire et ferme cette extrémité. Un plateau de filtre (40), ayant un diamètre plus petit que le chapeau tubulaire, comprend un rebord (44) s'étendant radialement vers l'intérieur depuis le plateau. Un insert de filtre de conversion catalytique amovible (50) à l'intérieur du chapeau tubulaire est supporté sur le rebord.

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