Open ended molded fireplace box and method

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

Patent

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Details

F24B 1/18 (2006.01) F23M 5/00 (2006.01)

Patent

CA 2405298

A prefabricated open-ended fireplace box for use in fireplace assemblies is molded from a slurry of refractory ceramic fibers and a non-organic binder. The prefabricated fireplace box is preferably formed in or over a mold which provides an accurate shape to the green or semi-rigid open end box which must be dried or partially fired while on the mold to avoid warping or distortion while being removed from the mold. A rigid surround trim in the form of a C-shape is placed in or on the mold at the open ends of the fireplace box. At least one attachment flange of the surround trim is integrally molded into walls of the fireplace box so that at least the open end of the semi-rigid fireplace box is made rigid when removed from the mold.

L'invention concerne une caisse ouverte de foyer préfabriquée s'utilisant dans des ensembles foyers, qui est moulée à partir d'une suspension contenant des fibres céramiques réfractaires et un liant non organique. La caisse de foyer préfabriquée est de préférence formée dans ou sur un moule conférant une forme précise à la caisse ouverte crue ou semi-rigide, qui doit être séchée ou partiellement cuite sur le moule pour éviter un gauchissement ou une distorsion lorsqu'on la retire du moule. Une garniture d'encadrement rigide en forme de C est placée dans ou sur le moule aux extrémités ouvertes de la caisse de foyer. Au moins un rebord de fixation de garniture d'encadrement est moulé d'une seule pièce dans les parois de la caisse de foyer, de façon à rigidifier au moins l'extrémité ouverte de la caisse de foyer semi-rigide quand on retire celle-ci du moule.

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