Automatic temperature and humidity regulation – Thermostatic – Expanding solid
Patent
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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