Patent US2713775A successfully refreshed from Google Patents.
US2713775A
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Recovery of salt free liquid from liquid having salts dissolved therein
Assignee: Phillips Petroleum Co
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Filing: 1953-11-06
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Granted: 1955-07-26
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Expires: 1973-11-06
Abstract
No abstract record available.
Inventors
- 👤 John E Cottle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:05
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/003; C01B; C01B17/00; C01B17/16; C01B17/167; C01B17/48; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN THE PROCESS FOR THE RECOVERY OF SALT-FREE INORGANIC LIQUID FROM A SYSTEM COMPRISING THE SAID LIQUID CONTAINING SALTS DISSOLVED THEREIN AND WHEREIN THE LIQUID IS CAUSED TO EVAPORATE FROM SAID SYSTEM BY HEAT SUPPLIED THROUGH A HEAT EXCHANGER SUBMERGED IN SAID SALT CONTAINING LIQUID, THE IMPROVEMENT COMPRISING DISPLACING SAID SALT CONTAINING LIQUID AROUND SAID HEAT EXCHANGER WITH A LIQUID INERT TO THE SAID FIRST LIQUID, HEAT EXCHANGER AND SALT, BEING HEAVIER THAN AND HAVING A HIGHER BOILING POINT THAN THE FIRST LIQUID AND SUPPLING HEAT FROM SAID HEAT EXCHANGER THROUGH SAID INERT LIQUID TO EVAPORATE SAID SALT CONTAINING LIQUID.
Claim 2
Dependent Claim
100 words
IN THE PROCESS FOR THE RECOVERY OF SALT-FREE INORGANIC LIQUID FROM A SYSTEM COMPRISING THE SAID LIQUID CONTAINING SALTS DISSOLVED THEREIN AND WHEREIN THE LIQUID IS CAUSED TO EVAPORATE FROM SAID SYSTEM BY HEAT SUPPLIED THROUGH A HEAT EXCHANGER SUBMERGED IN SAID SALT CONTAINING LIQUID, THE IMPROVEMENT COMPRISING DISPLACING SAID SALT CONTAINING LIQUID AROUND SAID HEAT EXCHANGER WITH A LIQUID INERT TO THE SAID FIRST LIQUID, HEAT EXCHANGER AND SALT, BEING HEAVIER THAN AND HAVING A HIGHER BOILING POINT THAN THE FIRST LIQUID AND SUPPLING HEAT FROM SAID HEAT EXCHANGER THROUGH SAID INERT LIQUID TO EVAPORATE SAID SALT CONTAINING LIQUID.
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) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |