Adjustable air inlet

Claim 2

Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; a louver positionable within the building in front of and in cooperative association with said inlet opening, said louver being movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; first support means within the building for pivotally anchoring the lower margin of said louver at selected lateral positions from said opening to select the size of the down-wash opening; and second support means within the building for positioning the upper margin of said louver at selected lateral positions from said opening and for positioning said louver in one of said positions at selected angles of inclination relative to said inlet opening.

Claim 3

The apparatus according to claim 1 wherein said first support means includes a support element anchored to a sidewall of said building beneath said opening, the lower margin of said louver being pivotally mounted to said support element at selected lateral distances from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of air down into said building.

Claim 4

The apparatus according to claim 1 wherein said air inlet opening is located along the upper margin of said building and extends the entire length thereof, said louver providing a means for simultaneously directing flow into said building in a general horizontal and vertical flow pattern.

Claim 5

Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; a louver positionable in cooperative association witH said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; first support means for pivotally anchoring the lower margin of said louver at selected lateral positions to select the size of the down-wash opening, said first support means including a support element anchored to a sidewall of said building beneath said opening, the lower margin of said louver being pivotally mounted to said support element at selected lateral distances from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of air down into said building; and second support means for positioning said louver in one of said positions at selected angles of inclination relative to said inlet opening, said louver being suspended in an upright position above said support element at various angles of inclination by a cable-pulley means movable to position the upper margin of said louver at selected distances from the ceiling of said building whereby said louver with said opening and ceiling defines a second adjustable flow passageway for deflecting the flow of air laterally into the building.

Claim 6

Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; a louver positionable in cooperative association witH said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; first support means for pivotally anchoring the lower margin of said louver at selected lateral positions to select the size of the down-wash opening, said first support means including a support element anchored to a sidewall of said building beneath said opening, the lower margin of said louver being pivotally mounted to said support element at selected lateral distances from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of air down into said building; and second support means for positioning said louver in one of said positions at selected angles of inclination relative to said inlet opening, said louver being suspended in an upright position above said support element at various angles of inclination by a cable-pulley means movable to position the upper margin of said louver at selected distances from the ceiling of said building whereby said louver with said opening and ceiling defines a second adjustable flow passageway for deflecting the flow of air laterally into the building.

Claim 7

The apparatus according to claim 4 wherein said cable-pulley means includes at least one pulley anchored above said louver and a cable strung through said pulley and anchored to said louver near the upper margin thereof.

Claim 8

Apparatus for controlling the flow of air into a building utilized for raising livestock comprising, in combination: means defining a ventilation inlet opening positioned above the livestock and extending the length of said building; a louver positioned within the building adjacent said inlet opening and extending the same length therewith; first means for pivotally supporting said louver along its lower margin adjacent the lower margin of said inlet opening at selected lateral spacings from the wall of said building whereby the spacing of the lower margin of said louver from said wall defines a first adjustable flow passageway for directing the flow of air down into said building, said first means including at least one support bracket anchored at one end to the wall of said building, said bracket extending horizontally into said building and including means defining a plurality of horizontally spaced openings, said louver including at least one tongue portion extending from the lower margin thereof, said tongue portion being dimensionally compatible with said openings to permit insertion and removal thereof from said spaced openings to preselect the cross-sectional opening of said first passageway; and second means for positioning the upper margin of said louver at selected vertical spacings from the ceiling of said building whereby the selected spacing of said upper margin from said ceiling defines a second adjustable flow passageway for directing the flow of air laterally into the building, said second means also positioning said louver at selected angles of inclination with respect to said inlet opening to deflect the air flowing through said inlet opening at selected ratios toward one or both of said first and second flow passageways.

Claim 9

Apparatus for controlling the flow of air into a building utilized for raising livestock comprising, in combination: means defining a ventilation inlet opening positioned above the livestock and extending the length of said building; a louver positioned within the building adjacent said inlet opening and extending the same length therewith; first means for pivotally supporting said louver along its lower margin adjacent the lower margin of said inlet opening at selected lateral spacings from the wall of said building whereby the spacing of the lower margin of said louver from said wall defines a first adjustable flow passageway for directing the flow of air down into said building, said first means including at least one support bracket anchored at one end to the wall of said building, said bracket extending horizontally into said building and including means defining a plurality of horizontally spaced openings, said louver including at least one tongue portion extending from the lower margin thereof, said tongue portion being dimensionally compatible with said openings to permit insertion and removal thereof from said spaced openings to preselect the cross-sectional opening of said first passageway; and second means for positioning the upper margin of said louver at selected vertical spacings from the ceiling of said building whereby the selected spacing of said upper margin from said ceiling defines a second adjustable flow passageway for directing the flow of air laterally into the building, said second means also positioning said louver at selected angles of inclination with respect to said inlet opening to deflect the air flowing through said inlet opening at selected ratios toward one or both of said first and second flow passageways.

Claim 10

The apparatus according to claim 6 wherein said second means is comprised of a cable anchored at one end along the upper margin of said louver and a pulley anchored to the ceiling of said building, said cable being movable around said pulley to pivotally move said louver to select the angle of inclination with respect to said inlet opening and preselect the cross sectional opening of said second passageway.

Claim 11

The apparatus according to claim 6 wherein said first means includes a plurality of brackets spaced lOngitudinally along the wall of said building and said louver includes a similar plurality of tongue portions correspondingly spaced along the lower margin of said louver for cooperative engagement with said brackets.

Claim 12

Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; louver positionable in cooperative association with said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; a bracket anchored to a sidewall of said building beneath said opening, and extending laterally inward from the sidewall, said bracket including means defining a plurality of laterally spaced openings, said louver including means extending from the lower margin of said louver compatible with said openings to permit insertion thereof into said openings, said bracket pivotally anchoring the lower margin of said louver at selected lateral positions from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of air down into said building; and second support means for positioning said louver in one of said positions at selected angles of inclination relative to said inlet opening.

Claim 13

Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; louver positionable in cooperative association with said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; a bracket anchored to a sidewall of said building beneath said opening, and extending laterally inward from the sidewall, said bracket including means defining a plurality of laterally spaced openings, said louver including means extending from the lower margin of said louver compatible with said openings to permit insertion thereof into said openings, said bracket pivotally anchoring the lower margin of said louver at selected lateral positions from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of air down into said building; and second support means for positioning said louver in one of said positions at selected angles of inclination relative to said inlet opening.