Patent US2824433A successfully refreshed from Google Patents.
US2824433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating gas-mixtures in a rectifying column
Assignee: US Philips Corp
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Filing: 1952-12-10
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Granted: 1958-02-25
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Expires: 1972-12-10
Abstract
No abstract record available.
Inventors
- 👤 Kohler Jacob Willem Laurens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:19
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
A METHOD OF SEPARATING GAS MIXTURES INTO AT LEAST TWO FRACTIONS IN A SYSTEM HAVING A RECTIFYING COLUMN, A VAPORIZER, CONDENSER, AND COMPRESSOR COMPRISING THE STEPS OF PROVIDING AN AUXILIARY MEDIUM IN SAID SYSTEM, COMPRESSING SAID AUXILIARY MEDIUM IN A COMPRESSOR WHEREIN THE HIGHEST TEMPERATURE OCCURRING IN THE COMPRESSION SPACE OF THE COMPRESSOR DURING NORMAL OPERATIONS IS LOWER THAN 0*C., PASSING SAID COMPRESSED MEDIUM THROUGH SAID VAPORIZER IN THE RECTIFYING COLUMN WHERE SAID MEDIUM GIVES OFF CALORIC ENERGY, DECREASING THE PRESSURE OF SAID MEDIUM, CONDUCTING SAID MEDIUM THROUGH SAID CONDENSER IN THE RECTIFYING COLUMN THEREBY ABSORBING CALORIC ENERGY, CAUSING SAID MEDIUM TO FLOW BACK TO SAID COMPRESSOR, AND ADDITIONALLY EXTRACTING CALORIC ENERGY FROM SAID RECTIFYING COLUMN BY MEANS OF COLD EXTRACTED FROM A COLD-GAS REFRIGERATOR, COMPRISING A CYLINDER, TWO PISTONS OPERATING IN SAID CYLINDER WITH A CONSTANT PHASE DILFERENCE AND DEFINING TWO CHAMBERS IN WHICH A CLOSED THERMODYNAMIC CYCLE IS PERFORMED BY A GASEOUS MEDIUM OF INVARIABLE CHEMICAL COMPOSITION IN ONE AND THE SAME STATE OF AGGREGATION, THE VOLUME OF GASEOUS MEDIUM IN SAID CHAMBERS VARYING CONTINOUSLY WHILE ONE OF SAID CHAMBERS HAS A LOW TEMPERATURE AND THE OTHER CHAMBER HAS A HIGHER TEMPERATURE, THE CHAMBERS BEING CONNECTED WITH ONE ANOTHER THROUGH A COOLER, REGENERATOR AND FREEZER, SAID CYCLE BEING PERFORMED INDEPENDENTLY OF SAID FRACTIONATING PROCESS.
Claim 2
Independent Claim
216 words
A METHOD OF SEPARATING GAS MIXTURES INTO AT LEAST TWO FRACTIONS IN A SYSTEM HAVING A RECTIFYING COLUMN, A VAPORIZER, CONDENSER, AND COMPRESSOR COMPRISING THE STEPS OF PROVIDING AN AUXILIARY MEDIUM IN SAID SYSTEM, COMPRESSING SAID AUXILIARY MEDIUM IN A COMPRESSOR WHEREIN THE HIGHEST TEMPERATURE OCCURRING IN THE COMPRESSION SPACE OF THE COMPRESSOR DURING NORMAL OPERATIONS IS LOWER THAN 0*C., PASSING SAID COMPRESSED MEDIUM THROUGH SAID VAPORIZER IN THE RECTIFYING COLUMN WHERE SAID MEDIUM GIVES OFF CALORIC ENERGY, DECREASING THE PRESSURE OF SAID MEDIUM, CONDUCTING SAID MEDIUM THROUGH SAID CONDENSER IN THE RECTIFYING COLUMN THEREBY ABSORBING CALORIC ENERGY, CAUSING SAID MEDIUM TO FLOW BACK TO SAID COMPRESSOR, AND ADDITIONALLY EXTRACTING CALORIC ENERGY FROM SAID RECTIFYING COLUMN BY MEANS OF COLD EXTRACTED FROM A COLD-GAS REFRIGERATOR, COMPRISING A CYLINDER, TWO PISTONS OPERATING IN SAID CYLINDER WITH A CONSTANT PHASE DILFERENCE AND DEFINING TWO CHAMBERS IN WHICH A CLOSED THERMODYNAMIC CYCLE IS PERFORMED BY A GASEOUS MEDIUM OF INVARIABLE CHEMICAL COMPOSITION IN ONE AND THE SAME STATE OF AGGREGATION, THE VOLUME OF GASEOUS MEDIUM IN SAID CHAMBERS VARYING CONTINOUSLY WHILE ONE OF SAID CHAMBERS HAS A LOW TEMPERATURE AND THE OTHER CHAMBER HAS A HIGHER TEMPERATURE, THE CHAMBERS BEING CONNECTED WITH ONE ANOTHER THROUGH A COOLER, REGENERATOR AND FREEZER, SAID CYCLE BEING PERFORMED INDEPENDENTLY OF SAID FRACTIONATING PROCESS.
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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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |