Animal enclosure with pressure controlled ventilation inlet and

Details Animal enclosure with pressure controlled ventilation inlet and Animal enclosure with pressure controlled ventilation inlet and

1974-03-11

1976-02-17

Wayner, William E.

Valves and valve actuation

Rotary valves

Ball valve

98 33R, 98 41R, 251279, B64D 1300, F24F 1306

Patent

active

039384284

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.

REFERENCES:
patent: 2995077 (1961-08-01), Kitson
patent: 3000290 (1961-09-01), Rodick et al.
patent: 3515052 (1970-06-01), Brandes
patent: 3601030 (1971-08-01), Bryant
patent: 3611906 (1971-10-01), Lorenz
patent: 3706271 (1972-12-01), Meiczkowski

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