Air filtering system and method of operation

Details Air filtering system and method of operation Air filtering system and method of operation

1980-11-20

1982-09-28

Lacey, David L.

Heating systems

Air

98 33A, 165 50, 55 97, 55274, 55385A, 55313, 55412, 55470, 55480, F24D 504, B01D 4642, F24F 316

Patent

active

043514766

ABSTRACT:
An air filtering unit for blowing only filtered air into a room of a building having a central air conditioning air duct outlet therein, includes an electric blower unit having an air inlet and an air outlet. An air guide system conducts all air flowing through the duct outlet into the air inlet of the blower unit. A filter disposed between the air duct outlet and the air inlet of the blower unit filters all air flowing into the blower unit. Air flowing through the outlet of the blower unit is directed into the room in which the air filtering unit is installed or is directed by means of a tubular conduit back through the central air conditioning duct to an outlet duct into another room. The air filtering unit is mounted in a housing disposed over the air duct outlet and has a door which can be opened to expose the filter to facilitate removal and replacement of the filter.

REFERENCES:
patent: 1916908 (1933-07-01), Stacey, Jr. et al.
patent: 2507057 (1950-05-01), Solberg
patent: 2767639 (1956-10-01), Johnson et al.
patent: 2825500 (1958-03-01), McLean
patent: 3139020 (1964-06-01), Schemenauer
patent: 3163100 (1964-12-01), McGrath
patent: 3165625 (1965-01-01), Potter
patent: 3259178 (1966-07-01), Tarnoff
patent: 3263743 (1966-08-01), Baumgarten
patent: 3693705 (1972-09-01), Stotz
patent: 3789621 (1974-02-01), Inuzuka
patent: 3828530 (1974-08-01), Peters
patent: 3936284 (1976-02-01), Mason

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