Self adjusting sail vertical shaft windmill

Details Self adjusting sail vertical shaft windmill Self adjusting sail vertical shaft windmill

2006-10-10

2006-10-10

Edgar, Richard A. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Feathering cycle related to flow direction

C416S041000, C416S117000, C415S004200

Reexamination Certificate

active

07118341

ABSTRACT:
A vertical shaft is provided and supported whereupon are mounted sails that can so self adjust as to interact with the wind in such a way as to power a windmill as well as relieve themselves from winds that are too severe while maintaining continuous operation.

REFERENCES:
patent: 188139 (1877-03-01), Howland et al.
patent: 1516668 (1924-11-01), Burch
patent: 2397346 (1946-03-01), Ramos
patent: 4048947 (1977-09-01), Sicard
patent: 5083902 (1992-01-01), Rhodes

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