Patent US2834409A successfully refreshed from Google Patents.
US2834409A
Expired / Lapsed
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Evaporation of charrable organic liquids
Assignee: JBS USA LLC
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Filing: 1955-12-22
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Granted: 1958-05-13
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Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Lowell W Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:49
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/02; A; A23; A23C; A23C1/00; A23C1/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN A METHOD FOR CONCENTRATING CHARRABLE ORGANIC LIQUIDS BY DIRECT CONTACT COMBUSTION GAS HEATING, THE STEPS WHICH COMPRISE: PASSING A STREAM OF HOT COMBUSTION GASES IN DIRECT HEAT EXCHANGE RELATIONSHIP INTO A BODY OF NONCHARRABLE, CONDENSIBLE FLUID MAINTAINED BELOW THE SURFACE OF AND OUT OF DIRECT CONTACT WITH THE CHARRABLE, ORGANIC LIQUID TO BE CONCENTRATED; VAPORIZING AT LEAST A PORTION OF SAID NONCHARRABLE FLUID BY HEAT OBTAINED FROM SAID GASES, THEREBY EFFECTING A PARTIAL COOLING OF SAID GASES; TRANSFERRING THE HEAT FROM THE VAPORS THUS FORMED TO CONDENSE THE SAME BY INDIRECT HEAT TRANSFER WITH THE ORGANIC LIQUID TO BE CONCENTRATED; SEPARATING THE UNCONDENSED PRODUCTS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |