Air-driven ceiling fan

Details Air-driven ceiling fan Air-driven ceiling fan

1988-07-08

1990-09-25

Joyce, Harold

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

98 4001, 98 4024, 416171, 417406, F24F 1306

Patent

active

RE0333476

ABSTRACT:
An air-driven ceiling fan uses air from the duct work system of a home such as the central air-conditioning system to harness that air flow and drive a ceiling fan having a plurality of blades which are spaced from the ceiling and upon a common shaft in a horizontal plane. Air flow through the duct work drives a squirrel cage blower which is mounted about a vertical axis so that air flow through the duct work also drives the squirrel cage blower and the ceiling fan.

REFERENCES:
patent: 280595 (1883-07-01), Fernie
patent: 571424 (1896-11-01), Wolpe
patent: 864265 (1907-08-01), Rosenberg
patent: 1017402 (1912-02-01), Gagnon
patent: 1333651 (1920-03-01), Andrassy
patent: 2038347 (1936-04-01), Cornell, Jr.
patent: 2093936 (1937-09-01), Spielmann
patent: 2239848 (1941-04-01), Jackson
patent: 2363839 (1944-11-01), Demuth
patent: 2505394 (1950-04-01), Goettl
patent: 2633070 (1953-03-01), Gillham
patent: 3760708 (1973-09-01), Burup
patent: 4276816 (1981-07-01), Tuley
patent: 4326453 (1982-04-01), La Boda et al.

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