Fluid reaction surfaces (i.e. – impellers) – Protective screen or guard – Water or marine propellers
Patent
1991-10-10
1993-03-16
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Protective screen or guard
Water or marine propellers
4152081, 4152112, 362 96, B64C 1100
Patent
active
051939843
ABSTRACT:
Disclosed herein is a fan which has a conical guide in an upper protection cover of the fan for guiding air flow to disperse in 360 degrees, a lamp hood on the guide, a lighting element and a set of batteries in the guide, and a push-button switch in the center of the upper protection cover to turn on and off the lighting element. Moreover, the lamp hood is formed with a plurality of slots so that a plurality of openings are formed after assembly of the guide and the lamp hood, and an appropriate quantity of cotton or other liquid-absorptive material is placed in the guide so that perfume can be poured through the openings and then absorbed by the cotton or other liquid-absorptive material to provide an aromatic smell during operation of the fan.
REFERENCES:
patent: 1889567 (1932-11-01), Persons
patent: 2201153 (1940-05-01), Brown
patent: 2582532 (1952-01-01), Dean
patent: 2618435 (1952-11-01), Koch
patent: 2625319 (1953-01-01), Reisch
patent: 2640646 (1953-06-01), Jones
patent: 2642220 (1953-06-01), Koch
patent: 2652193 (1953-09-01), Lindberg et al.
patent: 3010645 (1961-11-01), Mandelstam
Deng-Huei Huang
Kwon John T.
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