Blade for wind motors

Details Blade for wind motors Blade for wind motors

1978-11-21

1981-07-14

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

416226, 416229R, 416241A, 416248, F03D 106, F04D 2934

Patent

active

042784018

ABSTRACT:
A wind motor blade of composite construction has a blade shell of plastics material reinforced internally by transverse ribs and intersecting longitudinal struts in which metal fork arms are embedded, the fork arms being connected to a metal root attachment spigot through a metal cross-piece encapsulated in the plastics material.

REFERENCES:
patent: 1372086 (1921-03-01), Pick
patent: 2454200 (1948-11-01), Perkins
patent: 2715598 (1955-08-01), Rees et al.
patent: 3028292 (1962-04-01), Hinds
patent: 3554664 (1971-01-01), Cheeseman et al.
patent: 3645481 (1972-02-01), Purdy
patent: 3647317 (1972-03-01), Furlong et al.
patent: 3720481 (1973-03-01), Motta
patent: 4081220 (1978-03-01), Andrews

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