Patent
1981-10-26
1983-06-14
Makay, Albert J.
98 70, F23L 1702
Patent
active
043876293
ABSTRACT:
A device which is capable of being mounted on a structure and extracting air from the interior of the structure includes a housing having a hollow interior and open front and rear openings into the interior. Air is capable of moving into the front opening, through the interior of the housing and exiting out of the rear opening. A member, located within the interior of the housing, is capable of creating an area of reduced air pressure within the housing in response to air movement through the interior of the housing. A port is associated with the area of reduced air pressure and connects to a connecting member, which also attaches the housing to the structure. The connecting member is such that it allows for free rotation of the housing on the structure and simultaneously provides an air pathway between the interior of the structure and the interior of the housing. In response to an air pressure differential between the interior of the structure and the area of reduced pressure in the housing, air is extracted from the interior of the structure into the housing and expelled into the air moving through the housing.
REFERENCES:
patent: 761680 (1904-06-01), Jacobson
patent: 1362342 (1920-12-01), Morey
patent: 1993622 (1955-03-01), Peters et al.
patent: 2310331 (1943-02-01), Walker
Boswell K. H.
Joyce Harold
Makay Albert J.
O'Brian Edward D.
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