Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Continuous rotor oscillation
Patent
1995-05-12
1996-09-10
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Sustained ancillary movement of rotary working member
Continuous rotor oscillation
416110169/R, F04D 2510
Patent
active
055540023
ABSTRACT:
An electric fan having unidirectional and opposed-directional wind shifting modes is disclosed. The wind shifter of the fan has a drive shaft and an output shaft set in a housing. A unidirectional rotating unit of the wind shifter has a first pinion and a pinion gear. The pinion gear is rotatably fitted over the output shaft and selectively coupled to this shaft by a clutch. An opposed-directional rotating unit of the wind shifter has a second pinion, a crank gear gearing into the second pinion, and a reciprocating rotation disc rotatably fitted over the output shaft and selectively coupled to the output shaft by clutch. The unidirectional or opposed-directional rotating force of the output shaft is transmitted to the head of the fan through a revolving pulley cooperating with a sun pulley of the neck of the fan.
REFERENCES:
patent: 1373480 (1921-04-01), Brainerd
patent: 2794591 (1957-06-01), Rodriguez
patent: 4472110 (1984-09-01), Sun Keu
Larson James A.
Look Edward K.
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