US2827775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating a compressed gas mixture
Assignee: Linde GmbH
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Filing: 1955-05-20
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Granted: 1958-03-25
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Linde Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:00
CPC Classifications
F; F25; F25J; F25J5/00; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/908; Y10S62/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR THE SEPARATION OF A COMPRESSED GAS MIXTURE, COMPRISING THE STEPS OF PARTIALLY COOLING SAID MIXTURE IN HEAT-EXCHANGE WITH THE SEPARATION PRODUCTS THEREOF, WITHDRAWING PART OF SAID PARTIALLY COOLED MIXTURE, FURTHER COOLING THE REMAINDER OF SAID MIXTURE IN SAID HEAT-EXCHANGE, CONTACTING SAID PART WITH AN ADSORPTION MATERIAL TO PURIFY THE SAME OF GASEOUS IMPURITIES, HEATING SAID PART TO APPROXIMATELY AMBIENT TEMPERATURE, COMPRESSING SAID PART AT LEAST TO A MEDIUM PRESSURE, RE-COOLING THE SAME SUBSTANTIALLY TO ITS TEMPERATURE AFTER THE PARTIAL COOLING, FURTHER COOLING SAID PART TO LIQUEFY THE SAME, EXPANDING THE LIQUEFIED GASES, AND FEEDING THE LIQUEFIED GASES TOGETHER WITH THE FULLY COOLED REMAINDER OF SAID GAS MIXTURE TO A SEPRATOR FOR SAID MIXTURE.
Claim 2
Dependent Claim
116 words
A PROCESS FOR THE SEPARATION OF A COMPRESSED GAS MIXTURE, COMPRISING THE STEPS OF PARTIALLY COOLING SAID MIXTURE IN HEAT-EXCHANGE WITH THE SEPARATION PRODUCTS THEREOF, WITHDRAWING PART OF SAID PARTIALLY COOLED MIXTURE, FURTHER COOLING THE REMAINDER OF SAID MIXTURE IN SAID HEAT-EXCHANGE, CONTACTING SAID PART WITH AN ADSORPTION MATERIAL TO PURIFY THE SAME OF GASEOUS IMPURITIES, HEATING SAID PART TO APPROXIMATELY AMBIENT TEMPERATURE, COMPRESSING SAID PART AT LEAST TO A MEDIUM PRESSURE, RE-COOLING THE SAME SUBSTANTIALLY TO ITS TEMPERATURE AFTER THE PARTIAL COOLING, FURTHER COOLING SAID PART TO LIQUEFY THE SAME, EXPANDING THE LIQUEFIED GASES, AND FEEDING THE LIQUEFIED GASES TOGETHER WITH THE FULLY COOLED REMAINDER OF SAID GAS MIXTURE TO A SEPRATOR FOR SAID MIXTURE.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |