Ventilating system

Ventilation – Having forced recirculation – Including unitary housing having both inlet and outlet airways

Reexamination Certificate

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Details

C454S235000, C454S299000, C454S309000

Reexamination Certificate

active

07081049

ABSTRACT:
Ventilating system including a case mounted on a ceiling of a room, an inlet in a bottom surface of the case, and an outlet in a side surface of the case, a partition for dividing the case into an upper space, and a lower space, a fan in the upper space of the case, for drawing room air through the inlet, and discharging through the outlet, a first duct in communication with the upper space of the case for guiding outdoor air into the case, a second duct in communication with the lower space of the case for guiding the room air introduced into the case to an outside of the room, and a guide member provided to the outlet for guiding the air discharged into the room space toward a desired direction, thereby providing a ventilating system having an air purifying function, and preventing the air discharged into the room space from being directed to one side of the room.

REFERENCES:
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patent: 3367258 (1968-02-01), Erfeling
patent: 3561345 (1971-02-01), Kline et al.
patent: 3691929 (1972-09-01), Huling, Jr.
patent: 3722395 (1973-03-01), Courchesne
patent: 4079665 (1978-03-01), Martin
patent: 4570532 (1986-02-01), Labelle
patent: 4854375 (1989-08-01), Farina et al.
patent: 5127238 (1992-07-01), Ichikawa et al.
patent: 5376045 (1994-12-01), Kiser
patent: 6141983 (2000-11-01), Nishikawa et al.
patent: 6241600 (2001-06-01), Uehara
patent: 6688966 (2004-02-01), Akhtar

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