Patent US3350892A successfully refreshed from Google Patents.
US3350892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage air conditioning system
Assignee: Somerset Technologies Inc
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Filing: 1966-04-04
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Granted: 1967-11-07
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Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Gilbert A Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:23
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F2003/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD OF CONDITIONING AIR FOR A SPACE WHICH IS TO BE COOLED BY ARTIFICALLY-COOLED SURFACES THEREIN, SAID METHOD COMPRISING COOLING WATER OUTSIDE THE SPACE BY SPRAYING THE WATER THROUGH OUTSIDE AIR, PASSING THE WATER THROUGH A FIRST COIL, SPRAYING HYGROSCOPIC LIQUID OVER SAID COIL, DIRECTING AIR TO BE CONDITIONED PAST SAID COIL, COLLECTING THE HYGROSCOPIC LIQUID IN A FIRST SUMP BELOW THE COIL, EXHAUSTING AIR FROM THE SPACE, COOLING ADDITIONAL WATER BY SPRAYING THE ADDITIONAL WATER THROUGH THE EXHAUSTED AIR, PASSING THE ADDITIONAL WATER THROUGH A SECOND COIL, SPRAYING HYGROSCOPIC LIQUID OVER SAID SECOND COIL, DIRECTING THE AIR TO BE CONDITIONED PAST THE SECOND COIL AFTER PASSING SAID FIRST COIL, COLLECTING THE HYGROSCOPIC LIQUID FROM THE SECOND COIL IN A SECOND SUMP, COLLECTING SOME OF THE HYGROSCOPIC LIQUID FROM THE FIRST COIL AND SUPPLY IT TO SAID SECOND SUMP, REGENERATING THE HYGROSCOPIC LIQUID, AND DIRECTING THE AIR TO BE CONDITIONED TO THE SPACE AFTER PASSING SAID SECOND COIL.
Claim 2
Independent Claim
159 words
A METHOD OF CONDITIONING AIR FOR A SPACE WHICH IS TO BE COOLED BY ARTIFICALLY-COOLED SURFACES THEREIN, SAID METHOD COMPRISING COOLING WATER OUTSIDE THE SPACE BY SPRAYING THE WATER THROUGH OUTSIDE AIR, PASSING THE WATER THROUGH A FIRST COIL, SPRAYING HYGROSCOPIC LIQUID OVER SAID COIL, DIRECTING AIR TO BE CONDITIONED PAST SAID COIL, COLLECTING THE HYGROSCOPIC LIQUID IN A FIRST SUMP BELOW THE COIL, EXHAUSTING AIR FROM THE SPACE, COOLING ADDITIONAL WATER BY SPRAYING THE ADDITIONAL WATER THROUGH THE EXHAUSTED AIR, PASSING THE ADDITIONAL WATER THROUGH A SECOND COIL, SPRAYING HYGROSCOPIC LIQUID OVER SAID SECOND COIL, DIRECTING THE AIR TO BE CONDITIONED PAST THE SECOND COIL AFTER PASSING SAID FIRST COIL, COLLECTING THE HYGROSCOPIC LIQUID FROM THE SECOND COIL IN A SECOND SUMP, COLLECTING SOME OF THE HYGROSCOPIC LIQUID FROM THE FIRST COIL AND SUPPLY IT TO SAID SECOND SUMP, REGENERATING THE HYGROSCOPIC LIQUID, AND DIRECTING THE AIR TO BE CONDITIONED TO THE SPACE AFTER PASSING SAID SECOND COIL.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |