Ceiling fan

Details Ceiling fan Ceiling fan

1984-09-05

1987-09-15

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Multiple axially spaced working members

Opposed axial flow

416175, 416236A, 416 5, F04D 2938

Patent

active

046936734

ABSTRACT:
A ceiling fan having a plurality of fan blades which generate axial air flow and which include vane portions positioned angularly to the surface of the blades which direct air flow radially from the blades to increase the range of circulation of the air in a room, to establish a favorable pressure gradient for the axial flow, to increase the efficiency of the ceiling fan and to create a more desirable air flow distribution under the ceiling fan than do conventional ceiling fans.

REFERENCES:
patent: D145227 (1946-07-01), Pryne
patent: 571500 (1896-11-01), West
patent: 871729 (1907-11-01), McChord
patent: 1699201 (1929-01-01), Guth
patent: 2010094 (1935-08-01), Leinweber
patent: 2027050 (1936-01-01), Leinweber
patent: 2099196 (1937-11-01), Chapman
patent: 2104306 (1938-01-01), McLeod
patent: 2609055 (1952-09-01), Monroe
patent: 3630636 (1971-12-01), Hill
patent: 4222710 (1980-09-01), Kitagiri et al.

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