US4167898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illumination and ventilation system for buildings
Assignee: Individual
•
Filing: 1976-01-06
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Granted: 1979-09-18
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Expires: 1996-01-06
Abstract
Abstract An illumination and ventilation system for buildings and other enclosures utilizing at least one closure unit mounted in one or more sides of the building or other enclosure. The closure unit has a frame within which are a plurality of pivotally mounted, independently, movable, downwardly extending, blades. The blades are mounted within the frame with the pivot axii of the blades parallel and lying in a sloping plane when the closure unit is installed in the side of a building, or other enclosure. In a rectangular plan building or enclosure, four or more closure units should be employed; one or two for the windward side or sides, and three or two for the nonwindward and leeward sides. With this system, the windward and leeward and nonwindward closure units, will operate independently of each other and will be individually responsive to the net resultant wind pressures on each side of the building. Because the movement of the closure unit blades on any side of a building are also equally controlled by gravity, the dominant control of each closure is determined by wind conditions.
Inventors
- 👤 Kevin C. Barcant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:11
CPC Classifications
F; F24; F24F; F24F7/00; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/745
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
A gravity and wind-pressure actuated illumination and ventilation closure unit for buildings comprising: a frame means; and, a plurality of independently movable, downwardly, extending, blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and, lying in a sloping plane when the closure unit is installed in the side of a building, said blades being movable from a partially open, gravity controlled position to either a closed position or a fully open position as a function of positive or negative wind pressure, respectively.
Claim 2
Dependent Claim
89 words
A gravity and wind-pressure actuated illumination and ventilation closure unit for buildings comprising: a frame means; and, a plurality of independently movable, downwardly, extending, blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and, lying in a sloping plane when the closure unit is installed in the side of a building, said blades being movable from a partially open, gravity controlled position to either a closed position or a fully open position as a function of positive or negative wind pressure, respectively.
Claim 3
Dependent Claim
40 words
The closure unit of claim 1 wherein said pivotally mounted closure unit blades are vertically and horizontally spaced from each other with a portion of each blade, except the lowermost blade, vertically overlapping a portion of the next lower blade.
Claim 4
Dependent Claim
95 words
A gravity and wind-pressure actuated illumination and ventilation system for a building, said system comprising: at least one closure unit mounted in a side of a building, said closure unit comprising: a frame means; and, a plurality of independently movable, downwardly extending blades, pivotally mounted within the frame means with the pivot axii of said blades being parallel and, lying in a sloping plane, said blades being movable from a partially open, gravity controlled position to either a closed position or a fully open position as a function of positive or negative wind pressure, respectively.
Claim 5
Dependent Claim
95 words
A gravity and wind-pressure actuated illumination and ventilation system for a building, said system comprising: at least one closure unit mounted in a side of a building, said closure unit comprising: a frame means; and, a plurality of independently movable, downwardly extending blades, pivotally mounted within the frame means with the pivot axii of said blades being parallel and, lying in a sloping plane, said blades being movable from a partially open, gravity controlled position to either a closed position or a fully open position as a function of positive or negative wind pressure, respectively.
Claim 6
Dependent Claim
43 words
The illumination and ventilation system of claim 3 wherein the said pivotally mounted closure unit blades are vertically and horizontally spaced from each other with a portion of each blade, except the lowermost blade, vertically overlapping a portion of the next lower blade.
Claim 7
Dependent Claim
29 words
The illumination and ventilation system of claim 3 wherein said pivotally mounted closure unit blades are free to rotate about the pivot axii in both clockwise and counterclockwise directions.
Claim 8
Dependent Claim
26 words
The illumination and ventilation system of claim 3 wherein each one of the said pivotally mounted closure unit blades is independently rotatable about its pivot axis.
Claim 9
Dependent Claim
149 words
A gravity and wind pressure actuated illumination and ventilation system for a building having windward and leeward sides, said system comprising: a windward closure unit mounted on the windward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane; and, a leeward closure unit mounted on the leeward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane, wherein said windward and leeward closure units operate independently of each other, and wherein the windward closure unit blades close under wind pressure on the windward side of the building while the leeward closure unit blades open under such wind condition.
Claim 10
Dependent Claim
149 words
A gravity and wind pressure actuated illumination and ventilation system for a building having windward and leeward sides, said system comprising: a windward closure unit mounted on the windward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane; and, a leeward closure unit mounted on the leeward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane, wherein said windward and leeward closure units operate independently of each other, and wherein the windward closure unit blades close under wind pressure on the windward side of the building while the leeward closure unit blades open under such wind condition.
Claim 11
Dependent Claim
150 words
A gravity and wind pressure actuated illumination and ventilation system for a building having windward and leeward sides, said system comprising: a windward closure unit mounted on the windward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane; and, a leeward closure unit mounted on the leeward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane, wherein said windward and leeward pivotally mounted closure unit blades are free to rotate about the pivot axii in both clockwise and counterclockwise directions according to wind and gravitational forces which coincide with the need for opening and closing such closure units.
Claim 12
Dependent Claim
150 words
A gravity and wind pressure actuated illumination and ventilation system for a building having windward and leeward sides, said system comprising: a windward closure unit mounted on the windward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane; and, a leeward closure unit mounted on the leeward side of the building comprising: frame means; a plurality of movable, downwardly extending blades pivotally mounted within the frame means with the pivot axii of said blades being parallel and lying in a sloping plane, wherein said windward and leeward pivotally mounted closure unit blades are free to rotate about the pivot axii in both clockwise and counterclockwise directions according to wind and gravitational forces which coincide with the need for opening and closing such closure units.
Claim 13
Dependent Claim
28 words
The illumination and ventilation system of claim 8 wherein each one of said windward and leeward pivotally mounted closure unit blades is independently rotatable about its pivot axis.
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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) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |