Fan blade

Details Fan blade Fan blade

1990-07-05

1992-05-05

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Turbo machine

416 5, 416 62, 416132A, F01D 530

Patent

active

051102617

ABSTRACT:
A ceiling fan blade is provided having a generally rigid unitary frame, with three areas for secure attachment to a conventional blade iron providing three points of attachment. A flexible, weather-resistant cover is removably secured to the frame by hook-and-loop fastening material. The attachment areas are angularly offset from the plane of the blade to increase the blade's angle of attack as it moves through the air during normal use.

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patent: 4832572 (1989-05-01), Purcha et al.
A Breath of Fresh Air for Ceiling Fans, Wineta Inc. Apr. 1988.

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