Electric fan with hot air/cold air dual-mode control

Details Electric fan with hot air/cold air dual-mode control Electric fan with hot air/cold air dual-mode control

1992-08-26

1993-07-27

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

Temperature or icing condition responsive

392362, B64C 1102

Patent

active

052306062

ABSTRACT:
An electric fan includes a vane assembly fastened to a hub connected to a base plate in front of a motor output shaft of the motor by a connector and two bearings, which vane assembly is consisted of a plurality of vanes, of which each is comprised of an electric heating element covered by two aluminum alloy blades with radiating fins thereon and electrically connected to the two opposite ends of an external power supply through a switch with an adjustable thermostat in series to control the "on" or "off" and the temperature of the heating elements.

REFERENCES:
patent: 449404 (1891-03-01), Dewey
patent: 676949 (1901-06-01), Hawkins
patent: 684459 (1901-10-01), Porter
patent: 1784528 (1930-12-01), Lidke et al.
patent: 2110621 (1938-03-01), Cohen
patent: 3109913 (1963-11-01), Galajda

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