Air dampers

Details Air dampers Air dampers

F - Mech Eng,Light,Heat,Weapons

24

F

98/53

F24F 13/08 (2006.01)

Patent

CA 1168503

ABSTRACT There is provided, for use as a damper blade, an extrusion which includes two spaced-apart face walls and two spaced-apart edge walls, with two ridges projecting toward each other form the face wall but having their inner edges space apart. The extrusion is adapted for use with a control shaft which has opposed slots adapted to slidingly receive the ridge members. With this construction, heat transfer across the opposed face walls is minimized. When used as a damper blade, the extrusion can be filled with heat-insulative material such as expanded polystyrene.

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