Variable pitch propeller for use in conjunction with a vertical

Details Variable pitch propeller for use in conjunction with a vertical Variable pitch propeller for use in conjunction with a vertical

1991-04-19

1993-10-26

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Both inlet and outlet to working fluid

416119, 415914, F03D 302

Patent

active

052560341

ABSTRACT:
A variable pitch propeller mechanism includes a plurality of airfoil-shaped blades on three spaced apart blade arms. The airfoil-shaped blades are pivotally connected to the blade arms and are interconnected to each other by rigid connecting rods so these blades move in unison in response to changing wind conditions. Air flow across the airfoil-shaped blades is also controlled to improve the efficiency of the device.

REFERENCES:
patent: 685774 (1901-11-01), Lieske
patent: 1076713 (1913-10-01), Southwick
patent: 1794930 (1931-03-01), Spencer
patent: 2128592 (1938-08-01), Mushkin
patent: 4534703 (1985-08-01), Flavell
patent: 4565929 (1986-01-01), Baskin
patent: 4678923 (1987-07-01), Trepanier
patent: 4832571 (1989-05-01), Carrol

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