F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/21
F04D 29/38 (2006.01) F01P 7/06 (2006.01)
Patent
CA 1114792
Abstract Of The Disclosure An automotive cooling fan having flexible, resilient blades which decamber with increasing rotational speed of the fan, the general curvature of the blades being formed by a multiplicity of spaced, generally radially extending bends in the blades; in preferred embodiments the blades have configuration resulting from said bends in which the general radius of blade curvature of the blades increases and the chord angle of the blades de- creases from the blade roots to the blade tips.
319217
Fram Corporation
Macrae & Co.
LandOfFree
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