F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
98/28
F24F 5/00 (2006.01) F24F 11/08 (2006.01)
Patent
CA 1040001
VENTILATION SYSTEM FOR LIVESTOCK HOUSING ABSTRACT OF THE DISCLOSURE A ventilation system for a livestock building to provide a controlled environment therein. The ventilation system includes one or more exhaust fans for withdrawing air from the building, and also includes a controllable baffle system for permitting fresh air to flow into the building. The baffle system includes movable baffles disposed for closing openings formed in the build- ing, which openings are located in the ceiling or in the sidewalls adjacent the upper edges thereof. A drive mechanism is connected to the baffles for moving same between open and closed positions. The drive mechanism is actuated by a pressure sensing device which senses the pressure differential between the pressure on the inside of the building and the atmospheric pressure which exists outside the building. The sensing device maintains the pressure in the building at a level which is slightly below atmospheric pressure. When the pressure in the building falls below this level, then the drive device is automatically energized to open the baffles to permit the inflow of air accompanied by the dis- charge of air through the exhaust fan. Similarly, when the pres- sure in the building exceeds this level, then the drive device is energized to close the baffles. The exhaust fans are preferably controlled by thermostatic switches which cause the air in the building to be changed when a preselected temperature is exceeded.
240724
Miller Loren C.
Walsh Kenneth G.
LandOfFree
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