Insulated fan for electric appliance

Details Insulated fan for electric appliance Insulated fan for electric appliance

1977-01-31

1979-04-03

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

416188, 416241A, F04D 2928

Patent

active

041474708

ABSTRACT:
A fan and motor assembly for an electric appliance, wherein the fan is comprised of a plastic material and has a mounting hole of a diameter greater than the shaft diameter of the motor. Insulating washers closely fitted in annular recesses at the end of the mounting hole have inner diameters substantially the same as that of the shaft for centering the fan on the shaft.

REFERENCES:
patent: 2428728 (1947-10-01), Watson
patent: 2438866 (1948-03-01), Rockwell et al.
patent: 2836348 (1958-05-01), McDonald
patent: 3387768 (1968-06-01), Zoehfeld
patent: 3521973 (1970-07-01), Schouw
patent: 3622249 (1971-11-01), Hayashi et al.
patent: 3659471 (1972-05-01), Marsch
patent: 3749519 (1973-07-01), Ryba
patent: 3846045 (1974-11-01), Mincuzzi
patent: 3932062 (1976-01-01), Sisk

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