US3938428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal enclosure with pressure controlled ventilation inlet and deflection means
Assignee: US Industries Inc
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Filing: 1974-03-11
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Granted: 1976-02-17
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Expires: 1994-03-11
Abstract
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.
Inventors
- 👤 Robert L. Van Huis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:31
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1426; A; A01; A01K; A01K1/00; A01K1/0047; A01K1/0064; F24F2013/1433; F24F2013/1453
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
205 words
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.
Claim 2
Dependent Claim
205 words
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.
Claim 3
Dependent Claim
33 words
The apparatus according to claim 1 wherein said valve means is a louver means associated with said opening, said louver means being movable relative said opening between said generally open and closed positions.
Claim 4
Dependent Claim
20 words
The apparatus according to claim 2 wherein said valve means comprises a plate positioned for sliding movement relative said opening.
Claim 5
Dependent Claim
78 words
The apparatus according to claim 3 wherein said opening is a slot extending generally the length of one side of said room, said slot having a pair of spaced longitudinal spaced sides, said plate being positioned in front of said slot and movable in a plane parallel to the plane of said slot, said plate being movable longitudinally and arcuately so that the longitudinal sides of said plate are continually parallel with the longitudinal sides of said slot.
Claim 6
Dependent Claim
41 words
The apparatus according to claim 1 wherein said opening comprises a slot extending substantially the entire length of said room along each side thereof, each said opening being positioned in the proximity of the transition between each side wall and ceiling.
Claim 7
Dependent Claim
168 words
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.
Claim 8
Dependent Claim
168 words
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.
Claim 9
Dependent Claim
33 words
The system according to claim 6 wherein said valve means is a louver means associated with said opening, said louver means being movable relative said opening between said generally open and closed positions.
Claim 10
Dependent Claim
70 words
The system according to claim 7 wherein said louver means is comprised of one or more plates slidable within or parallel to the plane of said opening to adjust the effective amount of opening, said deflection means comprising one or more louvers positioned within said house in front of said opening and being pivotally supported relative thereto to vary the deflection angle of air entering said house through said opening.
Claim 11
Dependent Claim
38 words
The system according to claim 8 wherein said one or more plates and said one or more louvers are actuated simultaneously together in response to changes in the pressure differential between the inside and outside of said house.
Claim 12
Dependent Claim
24 words
The system according to claim 6 wherein said opening defines an elongated longitudinal slot extending substantially the length of said one of said walls.
Claim 13
Dependent Claim
201 words
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.
Claim 14
Dependent Claim
201 words
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.
Claim 15
Dependent Claim
33 words
The system according to claim 11 wherein said valve means is a louver means associated with said opening, said louver means being movable relative said opening between said generally open and closed positions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |