Ventilation grille

Details Ventilation grille Ventilation grille

F - Mech Eng,Light,Heat,Weapons

24

F

26/144, 98/38, 1

F24F 13/08 (2006.01) B21D 53/00 (2006.01) F24F 13/075 (2006.01)

Patent

CA 2011786

ABSTRACT The present invention relates to a ventilation grille comprising a housing having a rear wall provided with apertures and side walls projecting from the rear wall defining a compartment having an opening wherein fins are pivotably mounted on the side walls for con- trolling the flow of air through the opening. A damper is located in the compartment defined by the side walls and rear walls between the fins and the rear wall for controlling the passage of air therebetween. The hous- ing is formed in one piece. This ventilation grille is easier and cheaper to manufacture. The process of man- ufacture is also disclosed. According to the process the slots of the rear wall are stamped from one strip of material, the side walls are folded away, from which lateral strips are folded away, and the latter are then joined to one another in overlapping regions.

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