US4069687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration evaporative booster combination
Assignee: Individual
•
Filing: 1976-11-22
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Granted: 1978-01-24
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Expires: 1996-11-22
Abstract
Abstract A compressor type air cooler is combined with a booster comprising an evaporative air precooler, a refrigerant vapor precooler and a refrigerant liquid cooler. This makes the compressor type cooler usable in localities where the ambient temperature is so high as to prohibit use of the compressor type cooler alone, and saves a notable amount of electrical power at any ambient temperature.
Inventors
- 👤 Raoul M. Larriva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/001; F24F6/00; F24F6/02; F24F6/04; F25; F25B; F25B19/00; F25B25/00; F25B39/00; F25B39/04; F25B41/00; F25B2339/00; F25B2339/04; F25B2339/041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
A refrigerative evaporative booster combination comprising: a refrigerative air cooler containing a fluid refrigerant and a condenser, said condenser containing a refrigerant pipe unit having a pipe input and a pipe output; a condenser fan passing air through said condenser; an evaporative air cooler containing at least one water-dampened cooler pad, containing a water-cooled pipe unit and containing a sump collecting excess water from said at least one pad and from the water-cooled pipe unit; pipes containing a refrigerant, said pipes interconnecting said refrigerative air cooler and said evaporative air cooler; and air duct means interconnecting said refrigerative air cooler and said evaporative air cooler whereby air moved by said condenser fan passes successively through said at least one cooler pad and said condenser.
Claim 2
Dependent Claim
124 words
A refrigerative evaporative booster combination comprising: a refrigerative air cooler containing a fluid refrigerant and a condenser, said condenser containing a refrigerant pipe unit having a pipe input and a pipe output; a condenser fan passing air through said condenser; an evaporative air cooler containing at least one water-dampened cooler pad, containing a water-cooled pipe unit and containing a sump collecting excess water from said at least one pad and from the water-cooled pipe unit; pipes containing a refrigerant, said pipes interconnecting said refrigerative air cooler and said evaporative air cooler; and air duct means interconnecting said refrigerative air cooler and said evaporative air cooler whereby air moved by said condenser fan passes successively through said at least one cooler pad and said condenser.
Claim 3
Dependent Claim
55 words
A combination in accordance with claim 1 comprising: refrigerant pipes connecting said condenser input to said water-cooled pipe unit whereby said refrigerant is precooled before entering the condenser; a pipe element water-immersed in said sump; and refrigerant pipes connecting said pipe output and said pipe element whereby said refrigerant is postcooled after leaving the condenser.
Claim 4
Dependent Claim
160 words
A combination in accordance with claim 2 comprising: a refrigerative air cooler comprising in addition a compressor, an expansion valve, a cooling coil with a fan, and refrigerant pipes connecting all refrigerative air cooler elements in series; and an evaporative air cooler comprising in addition means pumping water from said sump to a trough above each said cooler pad and also to means above said pipe unit to water cool it; means supplying make-up water to said sump, valve means maintaining a selected water level in said sump, a refrigerant pipe connected to the output of said compressor and the input of said water-cooled pipe unit, a refigerant pipe connected to the output of said water-cooled pipe unit and the input of said condenser, a refrigerant pipe connected to the output of said condenser and the input of said pipe element, and a refrigerant pipe connected to the output of said pipe element and the input of said expansion valve.
Claim 5
Dependent Claim
66 words
A combination in accordance with claim 3 comprising in addition in said refrigerative air cooler: a fractionating valve dividing the sump water pumped by said means to the trough above said cooler pad and the sump water pumped by said means above said pipe unit; and an air filter interposed in the duct carrying the air stream leaving said cooler pad and directed toward said condenser.
References Cited (Backward Citations)
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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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |