US4752419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative cooler
Assignee: Individual
•
Filing: 1986-09-15
•
Granted: 1988-06-21
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Expires: 2006-09-15
Abstract
Abstract A shroud, including a shield placed on either side of an evaporation pad, increases the length of travel air transit time within the pad. Pressurized water, emitted in jets from a plurality of orifices spaced along a manifold, is directed against a diffuser for dissipation and dissemination to the upper edge of the pad. The pad is wetted intermittently as the result of a timer controlling distribution of the water. An auxiliary reservoir, in combination with relocatable pump, inlet valve and pad frames, provide for alternate downdraft as side draft operation.
Inventors
- 👤 Charles J. Sperr, Jr.
- 👤 Douglas C. Sperr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:44
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/03
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
216 words
A selectively spatially orientable evaporative cooler for receiving ambient air, cooling said air in response to evaporation of a liquid, and discharging the cooled air in a preselected vertically or horizontally directed stream, said evaporative cooler comprising: (a) a unitary housing having i. an upright side with an inlet opening therein, ii. an other side connected to said upright side and having an outlet opening therein, said unitary housing capable of being selectively orientated in a first position wherein said other side is vertically positioned and at least a second position wherein said other side is horizontally positioned, iii. a first reservoir connected to said upright side and said other side for holding said liquid when said other side is positioned vertically, and iv. a second reservoir connected to said upright side, said other side, and said first reservoir for holding said liquid when said other side is positioned horizontally; (b) a frame securable to said upright side and carrying an air pervious liquid absorbing evaporation pad spanning said inlet opening; (c) circulation means selectively cooperatable with said first or said second reservoir for supplying said liquid to said pad; and (d) blower means carried within said housing for drawing said ambient air through said pad and for discharging said cooled air through said outlet opening.
Claim 2
Dependent Claim
216 words
A selectively spatially orientable evaporative cooler for receiving ambient air, cooling said air in response to evaporation of a liquid, and discharging the cooled air in a preselected vertically or horizontally directed stream, said evaporative cooler comprising: (a) a unitary housing having i. an upright side with an inlet opening therein, ii. an other side connected to said upright side and having an outlet opening therein, said unitary housing capable of being selectively orientated in a first position wherein said other side is vertically positioned and at least a second position wherein said other side is horizontally positioned, iii. a first reservoir connected to said upright side and said other side for holding said liquid when said other side is positioned vertically, and iv. a second reservoir connected to said upright side, said other side, and said first reservoir for holding said liquid when said other side is positioned horizontally; (b) a frame securable to said upright side and carrying an air pervious liquid absorbing evaporation pad spanning said inlet opening; (c) circulation means selectively cooperatable with said first or said second reservoir for supplying said liquid to said pad; and (d) blower means carried within said housing for drawing said ambient air through said pad and for discharging said cooled air through said outlet opening.
Claim 3
Dependent Claim
26 words
The evaporative cooler of claim 1, wherein said first reservoir includes a generally concave first basin having a bottom forming a third side of said housing.
Claim 4
Dependent Claim
26 words
The evaporative cooler of claim 2, wherein said second reservoir includes a generally concave second basin having a bottom forming a fourth side of said housing.
Claim 5
Dependent Claim
19 words
The evaporative cooler of claim 3, wherein said third and fourth sides are generally perpendicular to said upright side.
Claim 6
Dependent Claim
17 words
The evaporative cooler of claim 4, wherein said third side is generally perpendicular to said fourth side.
Claim 7
Dependent Claim
21 words
The evaporative cooler of claim 5, wherein said other side and said third side are coincident having said outlet opening therethrough.
Claim 8
Dependent Claim
69 words
The evaporative cooler of claim 6, further including a third reservoir connected to said upright side, said other side, and to said first and second reservoirs including a generally concave third basin having a bottom forming a fifth side substantially parallel to said third side for holding said liquid when said other side is positioned horizontally, whereby said stream is selectively directable in vertically upward and vertically downward directions.
Claim 9
Dependent Claim
43 words
The evaporative cooler of claim 1, wherein said frame includes an upper edge and is securable to said upright side in alternate predetermined positions, whereby said upper edge extends along the top of said frame without regard to spatial orientation of said housing.
Claim 10
Dependent Claim
46 words
The evaporative cooler of claim 8, wherein said circulation means includes: (a) liquid distribution means extending along said frame proximate the upper edge thereof over said pad; and (b) pump means for selectively supplying liquid from said first or said second reservoir to said distribution means.
Claim 11
Dependent Claim
21 words
The evaporative cooler of claim 1 further including drain means for selectively expending liquid from said first or said second reservoir.
Claim 12
Dependent Claim
66 words
The evaporative cooler of claim 10, wherein said drain means includes: (a) a liquid draining opening formed in each said reservoir; (b) a sump detachably securable to a selected one of said reservoirs for receiving liquid from said respective opening; (c) means for selectively expending liquid from said sump; and (d) seal means detachably securable to the other of said reservoirs for closing the respective opening.
Claim 13
Dependent Claim
56 words
The evaporative cooler of claim 11, wherein said means for selectively expending liquid from said sump includes: (a) a pump having i. an inlet for receiving liquid from said sump; and ii. a discharge for expelling said liquid external of said reservoir; and (b) time means for energizing said pump for predetermined durations at predetermined intervals.
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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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |