Rotary kinetic fluid motors or pumps – Plural runners supported for relative motion or on separate... – With means for selective runner operation or drive shaft...
Patent
1981-03-05
1982-12-28
Tapolcai, William E.
Rotary kinetic fluid motors or pumps
Plural runners supported for relative motion or on separate...
With means for selective runner operation or drive shaft...
98 40V, 415 68, 416124, F03D 302
Patent
active
043659306
ABSTRACT:
An electric fan including a casing having an air supply opening at a front part and an air suction opening at a rear part and an air passage in the casing from the air suction opening to the air supply opening; fan blades placed in the air passage or near the air suction opening as an inlet to provide air flow in the air passage from the air suction opening to the air supply opening; a first motor for rotating the fan blades; a circular air directing grille having many slits to cover the front part of the air supply opening of the casing in gyratory manner; a driving roll made of an elastic material placed on the peripheral part of air directing grille to contact the driving roll with the peripheral part of the grille with a spring force; a second motor for driving the driving roll to turn the air directing grille and the air directing grille can be rotated in stable condition under contacting of the driving roll with the peripheral surface of the air directing grille with the spring force if desired.
REFERENCES:
patent: 1861608 (1932-06-01), Persons
patent: 2315667 (1943-04-01), Smith
patent: 2824429 (1958-02-01), Zucker
patent: 3173478 (1965-03-01), Maycen
patent: 3487805 (1970-01-01), Satterthwaite
patent: 4120615 (1978-10-01), Keem et al.
patent: 4217816 (1980-08-01), Mancinelli
Horio Noriyasu
Ogura Masato
Suzuki Kinzo
Mitsubishi Denki & Kabushiki Kaisha
Tapolcai William E.
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