Patent US3735604A successfully refreshed from Google Patents.
US3735604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative water cooler
Assignee: Individual
•
Filing: 1971-07-02
•
Granted: 1973-05-29
•
Expires: 1991-07-02
Abstract
Abstract A device using the principles of evaporative cooling is used to cool water purified by a water purifier based on reverse osmosis technology. The outside surfaces of the existing water purifier is covered by a sleeve of porous material. This assembly is installed in a container having numerous holes in its walls to provide for air circulation. The waste water produced by the purifier is continuously discharged so as to wet the porous sleeve. Excess waste water accumulates in the bottom of the container and upon reaching a predetermined level is discharged to the drain. Water evaporating out of the sleeve removes heat and therefore cools down the sleeve-purifier assembly and the purified water contained within.
Inventors
- 👤 J Astl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:02
CPC Classifications
F; F28; F28D; F28D5/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
180 words
An evaporative cooling device comprising, a water purifier having a generally cylindrical shape for receiving feed water and processing and holding and discharging purified water out of a first discharge line and waste water out of a second discharge line, a sleeve tightly fitted to said water purifier, said sleeve being made of porous material able to transport water within its body by capillary action, a cooler body in the form of a container for housing said water purifier and said sleeve, a cooling water dispenser means for delivering waste water from said second discharge line to said sleeve, said container having an impervious bottom for collecting excess portions of said waste water delivered to said sleeve, a cooling water overflow outlet incorporated in said container at a spaced location above the bottom thereof, a number of vent holes in the walls of said container positioned above said overflow outlet for allowing atmospheric air to communicate with the inside volume of said container, and said cooling water dispenser means is positioned above said water overflow outlet and said vent holes.
Claim 2
Dependent Claim
180 words
An evaporative cooling device comprising, a water purifier having a generally cylindrical shape for receiving feed water and processing and holding and discharging purified water out of a first discharge line and waste water out of a second discharge line, a sleeve tightly fitted to said water purifier, said sleeve being made of porous material able to transport water within its body by capillary action, a cooler body in the form of a container for housing said water purifier and said sleeve, a cooling water dispenser means for delivering waste water from said second discharge line to said sleeve, said container having an impervious bottom for collecting excess portions of said waste water delivered to said sleeve, a cooling water overflow outlet incorporated in said container at a spaced location above the bottom thereof, a number of vent holes in the walls of said container positioned above said overflow outlet for allowing atmospheric air to communicate with the inside volume of said container, and said cooling water dispenser means is positioned above said water overflow outlet and said vent holes.
Claim 3
Dependent Claim
53 words
An evaporative cooling device according to claim 1 wherein, said cooling water dispenser means comprises a line having a plurality of holes spaced along the length thereof, and said line being positioned aloNg the length of said water purifier and said sleeve for discharging said waste water along the length of said sleeve.
Claim 4
Dependent Claim
44 words
An evaporative cooling device according to claim 2 wherein, said bottom portion having a half cylindrical shape corresponding to the cylindrical shape of said water purifier, and said water purifier and sleeve being operatively positioned immediately adjacent the bottom surface of said bottom portion.
Claim 5
Dependent Claim
26 words
An evaporative cooling device according to claim 3 wherein, said cooling water dispenser line being positioned adjacent the upper portion of said water purifier and sleeve.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |