Propeller construction of an electric fan

Details Propeller construction of an electric fan Propeller construction of an electric fan

1986-11-06

1988-07-19

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291568B, 291568H, 416236A, B21K 300

Patent

active

047575875

ABSTRACT:
A fan assembly includes a propeller fixedly mounted on a shaft. The propeller has a rear side where fluid enters and a front side where fluid exits. The propeller has blades with an arcuate rib located on the front side of each blade. The arcuate rib may have curved outer surfaces at its outer ends and may be made up of portions formed about different centers of curvature.

REFERENCES:
patent: 10124 (1853-10-01), Beard
patent: 794010 (1905-07-01), Hayden
patent: 914857 (1909-03-01), Miller
patent: 1041913 (1912-10-01), Tyson
patent: 1080964 (1913-12-01), Gays
patent: 2086307 (1937-07-01), Stewart
patent: 2498170 (1950-02-01), Meier

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