F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/20
F04D 29/34 (2006.01)
Patent
CA 1071164
ABSTRACT OF THE DISCLOSURE A sheet metal fan exhibiting special utility as a radiator fan for an internal combustion engine. A spider carries the blades on its arms, the arms each hav- ing a radially extending stiffening rib in opposed rela- tion to a complementary rib in its blade to thereby form a tube where the stiffening ribs are radially coextensive. The stiffening rib on each blade intersects a continuous, blade stiffening channel.
269532
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