US3964377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated closures for attic fans, and seals therefor
Assignee: Individual
•
Filing: 1974-11-22
•
Granted: 1976-06-22
•
Expires: 1994-11-22
Abstract
Abstract Insulated closures for attic fans, and the like, one modification of the apparatus having an insulated panel which is removably disposed to cover the attic fan opening, and another modification having insulated tiltable dampers. Complete edge seals for each modification are provided.
Inventors
- 👤 Lael Ogden Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:28
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1406; F24F13/1413; F24F7/00; F24F7/02; F24F7/025
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
163 words
Insulated closure for an attic fan air inlet, comprising an attic fan having an air inlet, said attic fan having plural parallel elongate vanes across said air inlet rotatable to open and closed positions with respect to said air inlet, a frame around said air inlet at the entrance to said air inlet, said vanes being spaced from said entrance to said air inlet to provide a recess space over the area of said air inlet, insulated panel means conforming in shape to said air inlet and disposable in a closed position within said recess space of said air inlet and flush with the entrance to said air inlet to cover said vanes and to close said air inlet, said panel means being movable from said closed position covering said vanes to open said air inlet, and peripheral seal means around at least one of said panel means and air inlet to seal therebetween when said panel means is in said closed position.
Claim 2
Dependent Claim
163 words
Insulated closure for an attic fan air inlet, comprising an attic fan having an air inlet, said attic fan having plural parallel elongate vanes across said air inlet rotatable to open and closed positions with respect to said air inlet, a frame around said air inlet at the entrance to said air inlet, said vanes being spaced from said entrance to said air inlet to provide a recess space over the area of said air inlet, insulated panel means conforming in shape to said air inlet and disposable in a closed position within said recess space of said air inlet and flush with the entrance to said air inlet to cover said vanes and to close said air inlet, said panel means being movable from said closed position covering said vanes to open said air inlet, and peripheral seal means around at least one of said panel means and air inlet to seal therebetween when said panel means is in said closed position.
Claim 3
Dependent Claim
18 words
Combination of claim 1, said panel means being movably affixed in said air inlet by pivotal connection means.
Claim 4
Dependent Claim
33 words
Combination of claim 2, said panel means comprising a flat outer plate having inwardly depending walls therearound to provide an insulation space, and a layer of insulation material affixed in said insulation space.
Claim 5
Dependent Claim
48 words
Combination of claim 1, said peripheral seal means comprising an elongate strip of elastomeric material having a flat side and a convex side the edges of which coincide, the flat side of each said strip being adhered to one of a said panel means and said air inlet.
Claim 6
Dependent Claim
84 words
Combination of claim 1, said panel means comprising a single unitary panel comprising a flat outer plate and inwardly depending edge walls forming an insulation space therewithin, a layer of insulation affixed in said insulation space, releasable hinge means at one edge of said panel engaged with one side of said air inlet, latch means at another edge of said panel adapted to releasably engage another side of said air inlet, whereby said panel may be pivotally opened and removed from said air inlet.
Claim 7
Dependent Claim
56 words
Combination of claim 5, each said releasable hinge means comprising a shaped strip affixed at its inner end to one edge wall of said panel and curving outwardly and then inwardly of the edge wall in the form of a hook, and an opening in said one side of said air inlet to receive said hook.
Claim 8
Dependent Claim
36 words
Combination of claim 6, each said latch means comprising a twist latch carried by said panel and means at the side of the air inlet adapted to receive a portion of said twist latch rotated thereinto.
Claim 9
Dependent Claim
40 words
The combination of claim 1, including releasable hinge means connecting one edge of said panel to one side of the air inlet and releasable latch means for connecting another edge of said panel to another side of the air inlet.
Claim 10
Dependent Claim
56 words
Combination of claim 8, each said releasable hinge means comprising a shaped strip affixed at its inner end to one edge wall of said panel and curving outwardly and then inwardly of the edge wall in the form of a hook, and an opening in said one side of said air inlet to receive said hook.
Claim 11
Dependent Claim
34 words
Combination of claim 9, including strip seal means around the edges of at least one of said panel and said air inlet to form an airflow diminishing seal between said panel and air inlet.
Claim 12
Dependent Claim
109 words
In an attic fan apparatus of the type having plural pivotal parallel dampers movable to open and close the air inlet, the improvement comprising insulated damper panels each comprising a flat outer plate having inwardly depending side walls therearound to form an insulation space therebetween and having a layer of insulation material affixed in said insulation space, said damper panels being non-overlapping and being in the same plane when closed, strip seal means around the edges of at least one of said damper panels and said air inlet to form airflow diminishing seals between said dampers panels and said air inlet, and strip seal means between adjacent damper panels.
Claim 13
Dependent Claim
109 words
In an attic fan apparatus of the type having plural pivotal parallel dampers movable to open and close the air inlet, the improvement comprising insulated damper panels each comprising a flat outer plate having inwardly depending side walls therearound to form an insulation space therebetween and having a layer of insulation material affixed in said insulation space, said damper panels being non-overlapping and being in the same plane when closed, strip seal means around the edges of at least one of said damper panels and said air inlet to form airflow diminishing seals between said dampers panels and said air inlet, and strip seal means between adjacent damper panels.
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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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |