US5227095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular cooling tower
Assignee: Tower Tech Inc
•
Filing: 1992-11-13
•
Granted: 1993-07-13
•
Expires: 2012-11-13
Abstract
Abstract A direct forced draft counterflow water cooling tower module includes an integral one-piece frame and basin preferably constructed from molded fiberglass. The cooling tower includes a liquid distribution system, fill material located below the liquid distribution system, a drainage collection system located below the fill material, and at least one fan located below the drainage collection system. The fan blows cooling air directly upward through the drainage collection system and then through the fill material.
Inventors
- 👤 Harold D. Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:54
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/02; F28F; F28F25/00; F28F25/02; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/11; Y10S261/85
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
256 words
A transportable cooling tower module, comprising: a basin; four walls extending vertically upward from said basin; an air supply duct having an air intake opening defined in a bottom thereof and an air discharge outlet defined in a top thereof, said air supply duct extending vertically through said basin so that said basin laterally surrounds said air supply duct; a vertical axis fan located in said air supply duct; a drainage collection system located above said basin and said air supply duct, said drainage collection system including a plurality of parallel elongated collection plates having a length, said collection plates being sloped and overlapping in a direction transverse to said length of said collection plates, each collection plate having a lower gutter portion arranged to drain into said basin, said overlapping collection plates covering said fan; a body of fill material located directly above said drainage collection system, said body of fill material having a vertical thickness of at least approximately four feet; a liquid distribution system including at least one horizontal pipe supported from opposed ones of said side walls and including at least one nozzle spaced above said body of fill material so as to have a free fall height of spray from said nozzle to said fill material of less than one foot; a drift eliminator located above said horizontal pipe of said liquid distribution system; and said transportable cooling tower module having an overall height from a bottom of said basin to a top of said walls of less than eleven feet.
Claim 2
Dependent Claim
256 words
A transportable cooling tower module, comprising: a basin; four walls extending vertically upward from said basin; an air supply duct having an air intake opening defined in a bottom thereof and an air discharge outlet defined in a top thereof, said air supply duct extending vertically through said basin so that said basin laterally surrounds said air supply duct; a vertical axis fan located in said air supply duct; a drainage collection system located above said basin and said air supply duct, said drainage collection system including a plurality of parallel elongated collection plates having a length, said collection plates being sloped and overlapping in a direction transverse to said length of said collection plates, each collection plate having a lower gutter portion arranged to drain into said basin, said overlapping collection plates covering said fan; a body of fill material located directly above said drainage collection system, said body of fill material having a vertical thickness of at least approximately four feet; a liquid distribution system including at least one horizontal pipe supported from opposed ones of said side walls and including at least one nozzle spaced above said body of fill material so as to have a free fall height of spray from said nozzle to said fill material of less than one foot; a drift eliminator located above said horizontal pipe of said liquid distribution system; and said transportable cooling tower module having an overall height from a bottom of said basin to a top of said walls of less than eleven feet.
Claim 3
Dependent Claim
28 words
The transportable cooling tower module of claim 1, wherein: said drift eliminate is supported at least in part directly on said horizontal pipe of said liquid distribution system.
Claim 4
Dependent Claim
36 words
The transportable cooling tower module of claim 1, wherein: said collection plates each have an uppermost supporting surface; and said body of fill material is supported directly on said uppermost supporting surfaces of said collection plates.
Claim 5
Dependent Claim
59 words
The transportable cooling tower module of claim 1 further comprising: three additional air supply ducts, making a total of four air supply ducts extending vertically through said basin, said basin laterally surrounding each of said four air supply ducts; and three additional vertical axis fans, one of which is located in each of said three additional air supply duct.
Claim 6
Dependent Claim
18 words
The transportable cooling tower module of claim 1, wherein: said fan is a direct drive electrically powered fan.
Claim 7
Dependent Claim
31 words
The transportable cooling tower module of claim 1, wherein: said body of fill material includes at least four layers of corrugated plastic fill material, each layer being approximately one foot thick.
Claim 8
Dependent Claim
23 words
The transportable cooling tower module of claim 1, wherein: said overall height of said module is no greater than ten feet, four inches.
Claim 9
Dependent Claim
35 words
The transportable cooling tower module of claim 1, wherein: said nozzle includes a rotating plate having a plurality of blades thereon for distributing liquid from said liquid distribution system over said body of fill material.
Claim 10
Dependent Claim
22 words
The transportable cooling tower module of claim 1, wherein: said basin and said walls form an integrally constructed fiber reinforced plastic structure.
Claim 11
Dependent Claim
44 words
The transportable cooling tower module of claim 1, wherein: said horizontal pipe includes flanged ends substantially flush with said opposed ones of said side walls, said horizontal pipe and said opposed ones of said side walls forming an integrally constructed fiber reinforced plastic structure.
Claim 12
Dependent Claim
62 words
The transportable cooling tower module of claim 10, in combination with a second such module, said modules being joined together structurally and for common fluid supply to their liquid distribution systems, by bolting together of one of said flanged ends of said horizontal pipe of said first module to one of said flanged ends of said horizontal pipe of said second module.
Claim 13
Dependent Claim
36 words
The transportable cooling tower module of claim 1, in combination with three other such modules, said four modules being arranged in a rectangular plan shape with each module occupying one quadrant of said rectangular plan shape.
Claim 14
Dependent Claim
47 words
A modular construction water cooling tower, including said module of claim 1 and at least one other substantially identical module, said modules being connected together structurally and having a common liquid supply system, each of said modules being capable of independent operation when separated from each other.
Claim 15
Dependent Claim
36 words
The modular construction water cooling tower of claim 13, wherein each of said modules is a prefabricated module which can be separately transported to a construction site for assembly into said modular construction water cooling tower.
Claim 16
Dependent Claim
29 words
The modular construction cooling tower of claim 13, wherein said modules are aligned in a row and are mounted upon a wheeled transport to provide a portable cooling tower.
Claim 17
Dependent Claim
23 words
The transportable cooling tower module of claim 1, wherein: each of said four walls has a width of approximately eight and one-half feet.
Claim 18
Dependent Claim
21 words
The transportable cooling tower module of claim 1, wherein: each of said four walls has a width of approximately twelve feet.
Claim 19
Dependent Claim
241 words
A cooling tower, comprising: at least one layer of fill material; a liquid distribution system for distributing liquid onto said fill material; a drainage collection system located under said fill material; at least one fan located under said drainage collection system to force air directly upward from said fan through said drainage collection system and through said fill material; a frame supporting said liquid distribution system, said fill material, said drainage collection system and said fan; a basin supported by said frame and located below said drainage collection system to receive liquid run-off from said drainage collection system; an air supply duct having an air intake opening defined in a bottom of said tower and having an air discharge opening directed upward toward said drainage collection system; said fan being located within said air supply duct; said basin laterally surrounding said air supply duct; wherein said drainage collection system has an underside against which air is directly blown by said fan; wherein said air supply duct include a secondary liquid collection means for directing condensate and spray collecting on said underside of said drainage collection system into said basin; and wherein said air supply duct includes a lower cylindrical duct portion telescopingly received within an upper cylindrical duct portion with an annular gap between overlapping portions of said lower and upper cylindrical duct portions, said annular gap being communicated with said basin and being part of said secondary liquid collection means.
Claim 20
Dependent Claim
241 words
A cooling tower, comprising: at least one layer of fill material; a liquid distribution system for distributing liquid onto said fill material; a drainage collection system located under said fill material; at least one fan located under said drainage collection system to force air directly upward from said fan through said drainage collection system and through said fill material; a frame supporting said liquid distribution system, said fill material, said drainage collection system and said fan; a basin supported by said frame and located below said drainage collection system to receive liquid run-off from said drainage collection system; an air supply duct having an air intake opening defined in a bottom of said tower and having an air discharge opening directed upward toward said drainage collection system; said fan being located within said air supply duct; said basin laterally surrounding said air supply duct; wherein said drainage collection system has an underside against which air is directly blown by said fan; wherein said air supply duct include a secondary liquid collection means for directing condensate and spray collecting on said underside of said drainage collection system into said basin; and wherein said air supply duct includes a lower cylindrical duct portion telescopingly received within an upper cylindrical duct portion with an annular gap between overlapping portions of said lower and upper cylindrical duct portions, said annular gap being communicated with said basin and being part of said secondary liquid collection means.
Claim 21
Dependent Claim
24 words
The cooling tower of claim 18, further comprising: liquid level control means for maintaining a liquid level in said basin within said annular gap.
References Cited (Backward Citations)
US2250978A
Cited
US2445908A
Cited
FR1158377A
Cited
US3253819A
Cited
DE1451155A1
Cited
US3363885A
Cited
US3384165A
Cited
JPS5226645A
Cited
US4267130A
Cited
JPS57142483A
Cited
US4416836A
Cited
US4521350A
Cited
US4637903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |