Articulated blades ceiling fan-lamps combination

Details Articulated blades ceiling fan-lamps combination Articulated blades ceiling fan-lamps combination

1987-07-24

1988-10-11

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With illumination means

416 89, 416142, F04D 2934

Patent

active

047767618

ABSTRACT:
A ceiling fan is provided and includes articulated fan blades such that when the fan is off the blades will hang vertically downwardly by force of gravity and when the fan is turned on the blades will rise radially to a horizontal pitched angled position due to the coaction of centrifugal force, and wind reaction force.

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