Fan device

Details Fan device Fan device

1988-10-03

1989-07-11

Tapolcai, William E.

Automatic temperature and humidity regulation

Ventilator type

Pneumatically actuated

98103, 415207, F24F 706

Patent

active

048463990

ABSTRACT:
A readily portable fan device which is usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprises a housing containing both a fan impeller and an electric motor for driving the impeller, the housing having a skirt surrounding a bottom air inlet and capable of at least partially sealing a space around such register, the fan directing air upwardly through an outlet aperture when resting on the skirt. The device has another floor engaging surface perpendicular to the plane of the skirt on which the device may rest with its air inlet open to the ambient air. The impeller blades and the outlet aperture are specially designed to maximize air throughput.

REFERENCES:
patent: 1645140 (1927-10-01), Herbruck
patent: 2561592 (1951-07-01), Palmer
patent: 4048911 (1977-09-01), Petersen
patent: 4123968 (1978-11-01), Malott
patent: 4261255 (1981-04-01), Anderson et al.
patent: 4576331 (1986-03-01), Harwell
patent: 4722266 (1988-02-01), Deckert
patent: 4754697 (1988-07-01), Asselbergs

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