US4759196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-position cover for air handling equipment enclosure
Assignee: Trane International Inc
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Filing: 1987-05-26
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Granted: 1988-07-26
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Expires: 2007-05-26
Abstract
Abstract An outdoor enclosure for air handling equipment is adaptable to accept add-on air handling equipment by virtue of a two-position cover panel. The cover panel has a generally rectangular shape and is attached to a side panel of the enclosure. The cover panel is selectively mountable in either a vertical position to cover a fresh air opening through the side panel or in an open position to uncover the opening. The cover is opened by pivoting it about its upper horizontal edge which is located just above the opening and swinging its lower edge outwardly away from the side panel. An add-on mist elimination filter is installed in a generally horizontal position betweeen the cover panel's lower edge and the lower edge of the side panel's opening. In the open position, the cover panel serves as a rain sheltering hood over the filter while the opening allows fresh outside air to be drawn into the suction side of a fan located inside the enclosure. The two-position cover panel facilitates the conversion of the enclosure while minimizing the need for special, single-purpose panels.
Inventors
- 👤 James A. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/20; F24F1/00; F24F1/0007; F24F1/0035; F24F1/0071; F24F1/0073; F24F1/0087; Y; Y10; Y10S; Y10S62/00; Y10S62/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
132 words
An air handling enclosure comprising a fan disposed inside said enclosure and a cover panel selectively mountable in at least two positions, where in one position, a top edge of said cover panel is held against a generally vertical side wall of said enclosure, and a lower edge of said cover panel extends outwardly away from said enclosure to engage and add-on air handling device and uncover an enclosure opening that is in fluid communication with an inlet of said fan by way of a fresh air pasaage, and in an other position, said panel is in a generally vertical position with its top and lower edges held against said side wall to cover said opening with said add-on air handling device being separate from both said enclosure and said cover panel.
Claim 2
Dependent Claim
132 words
An air handling enclosure comprising a fan disposed inside said enclosure and a cover panel selectively mountable in at least two positions, where in one position, a top edge of said cover panel is held against a generally vertical side wall of said enclosure, and a lower edge of said cover panel extends outwardly away from said enclosure to engage and add-on air handling device and uncover an enclosure opening that is in fluid communication with an inlet of said fan by way of a fresh air pasaage, and in an other position, said panel is in a generally vertical position with its top and lower edges held against said side wall to cover said opening with said add-on air handling device being separate from both said enclosure and said cover panel.
Claim 3
Dependent Claim
21 words
The enclosure of claim 1, further comprising a flow regulating damper disposed in said passage for regulating airflow through said opening.
Claim 4
Dependent Claim
28 words
The enclosure of claim 3, wherein the inlet of said fan is also in fluid communication with a return air passage having a return air damper disposed therein.
Claim 5
Dependent Claim
22 words
The enclosure of claim 1, wherein said add-on air handling device comprises a demisting filter that removes moisture from air passing therethrough.
Claim 6
Dependent Claim
17 words
The enclosure of claim 1, wherein said add-on air handling device comprises a generally triangular support panel.
Claim 7
Dependent Claim
28 words
The enclosure of claim 1, wherein said cover panel in said one position engages two generally triangular support panels and also extends over and engages a demisting filter.
Claim 8
Dependent Claim
25 words
The enclosure of claim 6, wherein said cover panel in said one position includes a rain gutter that directs water away from said demisting filter.
Claim 9
Dependent Claim
220 words
An air handling equipment enclosure comprising: (a) a fan disposed inside said enclosure and having a fan inlet in fluid communication with a return air duct and connected to discharge air through a supply air duct; (b) an air filter disposed inside said enclosure in series flow relationship with said fan; (c) a heat exchanger disposed inside said enclosure in series flow relationship with said fan and said filters; (d) a generally vertical side wall having an opering therethrough in fluid communication with said fan inlet; and (e) a generally rectangular cover panel that is selectively mountable in at least two positions, where in one position said cover panel uncovers said opening and engages a demisting filter and two generally triangular support panels such that an upper edge of said cover panel is held against said side wall and a lower edge of said cover panel extends outwardly away from said side wall to extend over and engage said filter with two other edges of said cover panel engaging said support panels, and in an other position said cover panel covers said opening and is in a generally vertical position with said edges of said cover panel held against said side wall with said filter and said support panels being separate from both said side wall and said cover panel.
Claim 10
Dependent Claim
220 words
An air handling equipment enclosure comprising: (a) a fan disposed inside said enclosure and having a fan inlet in fluid communication with a return air duct and connected to discharge air through a supply air duct; (b) an air filter disposed inside said enclosure in series flow relationship with said fan; (c) a heat exchanger disposed inside said enclosure in series flow relationship with said fan and said filters; (d) a generally vertical side wall having an opering therethrough in fluid communication with said fan inlet; and (e) a generally rectangular cover panel that is selectively mountable in at least two positions, where in one position said cover panel uncovers said opening and engages a demisting filter and two generally triangular support panels such that an upper edge of said cover panel is held against said side wall and a lower edge of said cover panel extends outwardly away from said side wall to extend over and engage said filter with two other edges of said cover panel engaging said support panels, and in an other position said cover panel covers said opening and is in a generally vertical position with said edges of said cover panel held against said side wall with said filter and said support panels being separate from both said side wall and said cover panel.
Claim 11
Dependent Claim
46 words
The enclosure of claim 8, further comprising a damper connected to said enclosure in fluid communication with said opening and said inlet of said fan when said cover panel is in said one position, and in said other position, said damper is disconnected from said enclosure.
Claim 12
Dependent Claim
28 words
The enclosure of claim 8, wherein said inlet of said fan is also in fluid communication with a return air passage having a return air damper disposed therein.
Claim 13
Dependent Claim
25 words
The enclosure of claim 8, wherein said cover panel in said one position includes a rain gutter that directs water away from said demisting filter.
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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) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |