Filtered air moving apparatus

Details Filtered air moving apparatus Filtered air moving apparatus

1994-07-20

1995-07-18

Santiago, Amalia L.

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55213, 55467, B01D 1900

Patent

active

054337623

ABSTRACT:
A filtered air moving device including a housing defining an air inlet, an air outlet, and an air flow path therebetween; a blower disposed in the housing and arranged to move air in the flow path from the inlet to the outlet; a multiple speed electrical motor rotatably coupled to the blower; and an air filter disposed within the housing in the air flow path. Also included is a control circuit for connecting the motor to a voltage source and including an electrical switch operable between a first condition providing rotation of the blower at a given speed and a second condition providing rotation of the blower at a predetermined speed greater than the given speed; a tubulation providing communication between a location in the air flow path downstream of the filter and a position remote therefrom; an indicator responsive to the rate of air flow through the tubulation, and a selector for varying the level of resistance to air flow provided by the tubulation.

REFERENCES:
patent: 4162660 (1979-07-01), Albertson
patent: 4191543 (1980-03-01), Peters
patent: 4411675 (1983-10-01), de Castella
patent: 5131932 (1992-07-01), Glucksman
patent: 5141706 (1992-08-01), Clark

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