Fan blade for ceiling fans

Details Fan blade for ceiling fans Fan blade for ceiling fans

1996-01-16

1997-02-11

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

416 5, 416230, F04D 2934

Patent

active

056014090

ABSTRACT:
A fan blade which includes an open frame, and a flat, thin blade body fastened to the open frame, the open frame having a blade mounting groove on the inside for mounting the blade body, and a coupling head at one end for coupling to a motor shaft, the coupling head being formed of two separated coupling portions detachably connected together by a tongue-and-groove joint so that the two separated coupling portions can be separated from each other for permitting the blade body to be fitted into the blade mounting groove.

REFERENCES:
patent: 925030 (1909-06-01), Russel
patent: 925031 (1909-06-01), Russel
patent: 4653985 (1987-03-01), Rotherham
patent: 5110261 (1992-05-01), Junkin
patent: 5338156 (1994-08-01), Chien

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