Patent US3436035A successfully refreshed from Google Patents.
US3203192A
Expired / Lapsed
US
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Cooling a gaseous mixture with a solid contaminant in vapor carrier
Assignee: Conch International Methane Ltd
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Filing: 1961-08-15
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Granted: 1965-08-31
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Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Tafreshi Hadi Hashemi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:54
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/06; F25J3/063; F25J3/067; C; C01; C01B; C01B3/00; C01B3/50; C01B3/506; C07; C07C; C07C7/00; C07C7/14; C10; C10K; C10K1/00; F25J3/0605; F25J3/061; F25J3/0635; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/0475; C01B2203/0485; C01B2203/0495; F25J2205/00; F25J2205/20; F25J2205/90; F25J2210/00; F25J2210/04; F25J2245/00; F25J2245/02; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S62/00; Y10S62/928; Y10S62/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF PURIFYING A GAS CONTAINING CONTAMINANTS WHICH SOLIDFY AT HIGHER TEMPERATURES THAN DOES THE GAS UNDER TREATMENT WHICH COMPRISES CONTINUOUSLY COOLING A STREAM OF THE GAS UNDER SUPERATMOSPHERIC PRESSURE, EXPANDING THE COLD STREAM OF TTHE GAS TO SUCH CONDITIONS OF TEMPERATURE AND PRESSURE THAT THE SAID CONTAMINANTS PRECIPITATE FROM THE GAS AS A SOLID, CONTINUOUSLY SEPARATING THE SOLID CONTAMINANT FROM THE PURIFIED GAS, MIXING THE SEPARATED CONTAMINANT WITH VAPORISED CONTAMINANT IN SUFFICIENT AMOUNT TO PRODUCE A FLOWABLE MIXTURE WHICH BEHAVES AS A GAS, PASSING SAID FLOWABLE MIXTURE THROUGH A HEATER TO VAPORISE IT COMPLETELY AND USING PART OF THIS IRESULTING VAPOUR AS SAID VAPORISED CONTAMINANT.
Claim 2
Independent Claim
107 words
A METHOD OF PURIFYING A GAS CONTAINING CONTAMINANTS WHICH SOLIDFY AT HIGHER TEMPERATURES THAN DOES THE GAS UNDER TREATMENT WHICH COMPRISES CONTINUOUSLY COOLING A STREAM OF THE GAS UNDER SUPERATMOSPHERIC PRESSURE, EXPANDING THE COLD STREAM OF TTHE GAS TO SUCH CONDITIONS OF TEMPERATURE AND PRESSURE THAT THE SAID CONTAMINANTS PRECIPITATE FROM THE GAS AS A SOLID, CONTINUOUSLY SEPARATING THE SOLID CONTAMINANT FROM THE PURIFIED GAS, MIXING THE SEPARATED CONTAMINANT WITH VAPORISED CONTAMINANT IN SUFFICIENT AMOUNT TO PRODUCE A FLOWABLE MIXTURE WHICH BEHAVES AS A GAS, PASSING SAID FLOWABLE MIXTURE THROUGH A HEATER TO VAPORISE IT COMPLETELY AND USING PART OF THIS IRESULTING VAPOUR AS SAID VAPORISED CONTAMINANT.
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |