Patent US4428890A successfully refreshed from Google Patents.
US4428890A
Expired / Lapsed
US
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Cylindrical evaporative cooler apparatus
Assignee: Hi-Lo Manufacturing Inc
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Filing: 1982-05-18
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Granted: 1984-01-31
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Expires: 2002-05-18
Abstract
Abstract Cylindrical evaporator cooler apparatus includes a lower portion having a water sump, a water pump, and a support for a blower system, a vertically extending and cylindrical pad frame, and a top lid covering the pad frame which includes an integral trough through which water is fed to saturate the pads disclosed in the pad frame.
Inventors
- 👤 Robert L. Harrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:49
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/41
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
203 words
Evaporative cooler apparatus, comprising, in combination: base means, including means for containing a quantity of water; pad frame means disposed on the base means, including an outer pad frame extending continuously for substantially three hundred sixty degrees, and an inner pad frame spaced apart from the outer pad frame and extending continuously for substantially three hundred sixty degrees; pad means disposed between the outer pad frame and the inner pad frame and extending continuously for substantially three hundred sixty degrees; top means disposed on the pad frame means, including a top element, a trough in the top element extending substantially three hundred sixty degrees and disposed above the pad means for receiving a flow of water, a step extending circumferentially about the trough, and a cap defining a top cover for the cooler apparatus and disposed on the circumferentially extending step; means for providing a flow of water from the base means to the trough for saturating the pads; blower means secured to the base means for providing a flow of air through the pad means; and means for securing the top means to the blower means for securing the top means, the pad means, the blower means, and the base means together.
Claim 2
Dependent Claim
203 words
Evaporative cooler apparatus, comprising, in combination: base means, including means for containing a quantity of water; pad frame means disposed on the base means, including an outer pad frame extending continuously for substantially three hundred sixty degrees, and an inner pad frame spaced apart from the outer pad frame and extending continuously for substantially three hundred sixty degrees; pad means disposed between the outer pad frame and the inner pad frame and extending continuously for substantially three hundred sixty degrees; top means disposed on the pad frame means, including a top element, a trough in the top element extending substantially three hundred sixty degrees and disposed above the pad means for receiving a flow of water, a step extending circumferentially about the trough, and a cap defining a top cover for the cooler apparatus and disposed on the circumferentially extending step; means for providing a flow of water from the base means to the trough for saturating the pads; blower means secured to the base means for providing a flow of air through the pad means; and means for securing the top means to the blower means for securing the top means, the pad means, the blower means, and the base means together.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 in which the base means includes a blower duct to which the blower means is secured and through which air flows from the evaporative cooler apparatus.
Claim 4
Dependent Claim
33 words
The apparatus of claim 1 in which the outer pad frame and the inner pad frame comprise cylindrical elements having an open weave through which air flows for substantially three hundred sixty degrees.
Claim 5
Dependent Claim
69 words
The apparatus of claim 1 in which a means for providing a flow of water from the base means to the trough includes a pump for providing a flow of water, a water distribution manifold for receiving the flow of water from the pump, and a plurality of water distribution arms secured to the manifold and extending to the trough for distributing the flow of water to the trough.
Claim 6
Dependent Claim
25 words
The apparatus of claim 1 in which the pad frame means further includes pad supports, and the pad means is disposed on the pad supports.
Claim 7
Dependent Claim
17 words
The apparatus of claim 5 in which the pad supports are secured to the outer pad frame.
Claim 8
Dependent Claim
40 words
The apparatus of claim 1 in which the top element includes an outer cylinder wall, and the step is on the outer cylinder wall and adapted to receive the cap, and the trough is secured to the outer cylinder wall.
Claim 9
Dependent Claim
43 words
The apparatus of claim 7 in which the top element further includes a sloping wall between the outer cylinder wall and the trough, and the cap is disposed on the step of the outer cylinder wall and is disposed against the sloping wall.
Claim 10
Dependent Claim
21 words
The apparatus of claim 8 in which the top element further includes a horizontal flange extending radially inwardly from the trough.
Claim 11
Dependent Claim
32 words
The apparatus of claim 8 in which the cap includes a lower wall disposed on the step of the cylinder wall and a convexly configured dome extending upwardly from the lower wall.
Claim 12
Dependent Claim
26 words
The apparatus of claim 1 in which the blower means includes a blower housing secured to base means and a blower disposed in the blower housing.
Claim 13
Dependent Claim
35 words
The apparatus of claim 11 in which the means for securing the top means to the blower means includes a frame secured to the blower housing, and the top means is secured to the frame.
Claim 14
Dependent Claim
57 words
The apparatus of claim 12 in which the top means includes a top element disposed on the pad frame means and a cap disposed on the top element, and the cap is secured to the frame for securing the cap, the top element, and the pad frame means to the blower housing and to the base means.
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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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |