F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
98/50
F24F 7/02 (2006.01)
Patent
CA 1126567
ABSTRACT OF THE DISCLOSURE A natural ventilator for a building roof has acceptable weathering characteristics and achieves efficient air exhausting. The ventilator includes curved side walls; a throat in the building ridge; outwardly flared upper lips on throat walls; a central structure disposed above the throat and having upwardly diverging walls with outer edge surfaces; and curved or bent air flow guiding vanes between the outer edge surfaces and the curved side walls.
317996
Dahmen Karl F.
Smid Karel
Dsd Dillinger Stahlbau G.m.b.h.
Robertson (h. H.) (u.k.) Limited
Swabey Ogilvy Renault
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