US4043777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air handling system
Assignee: Individual
•
Filing: 1976-06-30
•
Granted: 1977-08-23
•
Expires: 1996-06-30
Abstract
Abstract An air handling unit is disclosed which comprises a compact unitary assembly of a cooling unit and an exhaust unit. The cooling unit, either an evaporative cooler or a refrigeration unit, delivers cooled air via a delivery duct to a room space. An exhaust system includes a duct and blower communicating with atmosphere and the attic or dead air space to evacuate or exhaust hot air from this space. In alternate embodiments, a clutch arrangement permits selective actuation of the exhaust and cooling units.
Inventors
- 👤 Joseph R. Parren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:51
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/04; F24F7/06; F24F6/00; F24F6/02; F24F6/04; F24F7/02; F24F7/025; Y; Y10; Y10S; Y10S261/00; Y10S261/04; Y10S62/00; Y10S62/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
An air handling unit for cooling a building room and evacuating a dead air space located above the room, said air handling unit comprising: a. a base member adapted for attachment to the roof of the building; b. a top member and a bottom member vertically spaced apart, said bottom member defining a sump; c. an evaporative cooling pad interposed between said top and bottom members and defining an enclosure; d. means for supplying water from said sump to said pad; e. first blower means within said enclosure having a discharge connected to a delivery duct communicating with said room; f. exhaust duct means communicating with the atmosphere and said dead air space; g. second blower means associated with said exhaust duct means for inducing a flow of air from said dead air space; and h. power transmission means drivingly connected to said first and second blower means.
Claim 2
Dependent Claim
148 words
An air handling unit for cooling a building room and evacuating a dead air space located above the room, said air handling unit comprising: a. a base member adapted for attachment to the roof of the building; b. a top member and a bottom member vertically spaced apart, said bottom member defining a sump; c. an evaporative cooling pad interposed between said top and bottom members and defining an enclosure; d. means for supplying water from said sump to said pad; e. first blower means within said enclosure having a discharge connected to a delivery duct communicating with said room; f. exhaust duct means communicating with the atmosphere and said dead air space; g. second blower means associated with said exhaust duct means for inducing a flow of air from said dead air space; and h. power transmission means drivingly connected to said first and second blower means.
Claim 3
Dependent Claim
35 words
The air handling unit of claim 1 wherein said power transmission means comprises an electric motor in driving engagement with sid first blower means and said second blower means through a belt and pulley arrangement.
Claim 4
Dependent Claim
26 words
The air handling unit of claim 1 wherein said power transmission means comprises independent electric motors driving said first blower means and said second blower means.
References Cited (Backward Citations)
US2344706A
Cited
US2799143A
Cited
US2896428A
Cited
US2847834A
Cited
US3267995A
Cited
US3263438A
Cited
US3867486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |