Animal enclosure with pressure controlled ventilation inlet and deflection means
AssigneeU. S. Industries, Inc.
InventorRobert L. Van Huis
Life of this patent
Estimating the term…
Abstract
Proper ventilation is achieved by exhaust fans which draw fresh air into the building through an inlet duct. The inlet opening is adjustable by a valve movable between generally open and closed positions and a movable deflector controls the direction of flow in accordance with the rate of flow to achieve even circulation. The valve and deflector position are controlled by an actuator responsive to the pressure differential between the inside and outside of the building. Preferably, the inlet opening is a longitudinal slot extending the length of the building along each side at the ceiling and the exhaust fans are positioned at the floor. Preferably, a louver in front of the opening controls the effective size of the opening and the deflection angle of flow into the building.
Claims12
Apparatus for controlling and circulating the flow of ventilating air through an enclosed room in a building comprising, in combination:
- air inlet and outlet means from outside said building into said room, said inlet means comprising an opening extending substantially the entire length of at least one side of said room;
- exhaust means causing air outside the building to flow into said room through said inlet means and out said outlet means;
- valve means associated with said inlet means and operable between a generally open and generally closed position to admit or prevent flow through said inlet means, said valve means also being operable to positions intermediate said open and closed positions;
- deflection means adjustable relative said air inlet means to cause even distribution of air flowing through said inlet means through said room;
- sensing means for sensing the pressure differential between the ambient pressure outside said building and the pressure within said room;
- and control means responsive to said sensing means for actuating said valve means and deflection means to maintain a preselected pressure differential, said control means adjusting said deflection means in cooperative relationship to the position of said valve means to provide continuous and even distribution of air circulation through said room.
A ventilation system for an animal house having space side walls, spaced end walls, a floor and ceiling comprising, in combination:
- an air outlet duct;
- exhaust means for removing air from said house;
- an inlet duct for admitting replacement air into said house, said inlet duct including an opening in at least one of said walls;
- valve means in said inlet duct and movable between a generally open and closed position to generally permit or block air flow through said opening;
- deflection means adjustable relative said air inlet duct for even distribution of air flowing into said house through said inlet duct;
- actuating means for operating said valve and deflection means;
- and sensing means for sensing the pressure differential between the inside and outside of said house, said sensing means controlling the operation of said actuating means to open or close said valve means and adjust said deflection means to maintain a preselected constant pressure differential and provide continuous and even distribution of air circulation through said house.
A ventilation system for a poultry house having spaced side walls, spaced end walls, a floor and ceiling and poultry cage means elevated above the floor comprising, in combination:
- exhaust fans positioned beneath said cage means for removing air from said house;
- an inlet duct above said cage means for admitting replacement air into said house and drawing said air through said cage means, said inlet duct including an opening defining a slot means extending generally the length of at least one side of said house said slot means being positioned at the transition of the ceiling and said one side or end wall valve means in said duct and movable between a generally open and closed position to generally permit or block air flow through said opening;
- deflection means adjustable relative said air inlet duct for varying the direction of air flowing into house;
- sensing means for sensing the pressure differential between the inside and outside of said house;
- and actuating means responsive to changes in said pressure differential to open or close said valve means and adjust said deflection means to maintain a preselected constant pressure differential and provide continuous and even distribution of air circulation through said house.
Dependencies are inferred from the claim text.