Windmill

Details Windmill Windmill

1975-10-08

1978-04-25

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Sectional, staged or nonrigid working member

416119, 416197A, 416241A, F03D 306

Patent

active

040860230

ABSTRACT:
The windmill includes a vertically positioned support shaft, a plurality of elongated, molded arcuate plastic vanes which are vertically positioned and operatively connected to the support shaft, which vanes are slightly flexible so winds engaging the vanes will flatten the arc of some vanes and will make the arc of other vanes tighter to provide unbalanced rotational forces on the vanes, and means operatively connect to the shaft to provide power therefrom on shaft rotation.

REFERENCES:
patent: 302769 (1884-07-01), Pallausch
patent: 574411 (1897-01-01), Gassett
patent: 853767 (1907-05-01), Caldwell
patent: 1315692 (1919-09-01), Weed
patent: 1578835 (1926-03-01), Kothe
patent: 1708374 (1929-04-01), Adams
patent: 2622687 (1952-12-01), Cohen
patent: 3038543 (1962-06-01), Davidson
patent: 3080824 (1963-03-01), Boyd et al.
patent: 3697765 (1972-10-01), Carini
patent: 3758231 (1973-09-01), Barnstead
patent: 3942909 (1976-03-01), Yengst
patent: 3976396 (1976-08-01), Antogini

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