Emergency ventilation means for confined livestock areas

Details Emergency ventilation means for confined livestock areas Emergency ventilation means for confined livestock areas

1976-07-19

1977-11-01

Wayner, William E.

Automatic temperature and humidity regulation

Thermostatic

Expanding solid

98121A, 49 89, 236 49, F24F 1102

Patent

active

040560481

ABSTRACT:
An emergency ventilation means for confined livestock areas comprised of a plurality of louvered openings which are normally closed by means of electrical motors having a high gearing ratio. When power is lost to the confined livestock area a spring on each set of louvers which is loaded by the electrical motor moving the louver mechanism so as to hold the louvers in a normally closed position causes the louvers to move to an open position so that emergency ventilation will flow through the confined livestock area until power to the normal ventilation means is restored.

REFERENCES:
patent: 302215 (1884-07-01), Tucker
patent: 328156 (1885-10-01), Tucker
patent: 2032658 (1936-03-01), Gille
patent: 3611906 (1971-10-01), Lorenz
patent: 3915377 (1975-10-01), Sutton, Jr.

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