F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
98/38, 98/41
F24F 13/08 (2006.01) E04B 9/02 (2006.01) F24C 15/20 (2006.01) F24F 7/00 (2006.01)
Patent
CA 1087444
ABSTRACT OF THE DISCLOSURE A device for ventilating areas such as kitchens containing a humid and/or greasy atmosphere may comprise a false ceiling having vent apertures. Cross-sectionally arcuate or trough-like channels with longitudi- nally extending openings arranged with adjacent channels having their openings facing alternately upwardly and downwardly so that the channels engage in each other, but with their edges in spaced relationship. The channels are adjustable to control the flow of air therethrough. Groups of channels can be arranged in frames or boxes which can be attached together to form a continuous false ceiling.
302051
Fetherstonhaugh & Co.
Gif Gesellschaft Fur Ingenieurprojekte Freiburg M.b.h.
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