Blade for a wind motor

Details Blade for a wind motor Blade for a wind motor

1980-01-09

1981-12-15

Hart, Douglas

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Formed with main spar

416229R, 416241A, F03D 106

Patent

active

043056997

ABSTRACT:
A blade for a wind motor comprises a load-bearing structure and an external covering of plastic material. The load-bearing structure is of flat tubular form and is composed of a pair of facing half shells constituted by sheet metal pressings of substantially channel section. Flat-bottomed impressions are provided along the edges of the shells. The shells are joined together by spot welds welding the bottoms of the impressions of one shell to the bottoms of corresponding impressions of the other shell.

REFERENCES:
patent: 2400649 (1946-05-01), Larsen
patent: 2450455 (1948-10-01), Snyder
patent: 2591757 (1952-04-01), Young
patent: 2648388 (1953-08-01), Haines
patent: 2916808 (1959-12-01), Wilkes
patent: 3647317 (1972-03-01), Furlong

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