Air shutter and installation method thereof

Details Air shutter and installation method thereof Air shutter and installation method thereof

2006-05-02

2006-05-02

Joyce, Harold (Department: 3749)

Ventilation

Having protecting air current

Including suction outlet

Reexamination Certificate

active

07037189

ABSTRACT:
An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost12and a gatepost13installed at both sides of the opening area of a doorway. The gatepost12is provided with a lower slit nozzle12a, a suction opening12b, and lower fans12cand a suction duct12dinside thereof, on the other hand, the gatepost13provided with an upper slit nozzle13a, a suction opening13b, and lower fans13cand a suction duct13dinside thereof.

REFERENCES:
patent: 3190207 (1965-06-01), Weisz
patent: 3282193 (1966-11-01), Jennings
patent: 3817160 (1974-06-01), Searcy et al.
patent: 6106387 (2000-08-01), Smith
patent: 37-12183 (1937-08-01), None
patent: 51-118149 (1976-10-01), None
patent: 05-073436 (1993-10-01), None
patent: 1399606 (1988-05-01), None

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