US2932174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for fractionation of gas
Assignee: Air Products Inc
•
Filing: 1957-05-13
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Granted: 1960-04-12
•
Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Schilling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:36
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04763; F25J3/04866; F25J3/04951; F25J3/04957; F25J3/04006; F25J3/04012; F25J3/04018; F25J3/04036; F25J3/04109; F25J3/04115; F25J3/04121; F25J3/04145; F25J3/04248; F25J3/04284; F25J3/04309; F25J3/04375; F25J3/04381; F25J3/04406; F25J3/04412; F25J2205/00; F25J2205/24; F25J2230/00; F25J2230/24; F25J2230/40; F25J2250/00; F25J2250/30; F25J2250/50; F25J2250/52; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
257 words
THE METHOD OF SEPARATING GASEOUS MIXTURES INTO COMPONENTS IN WHICH COMPRESSED GASEOUS MIXTURE IS REFRIGERATED BY HEAT INTERCHANGE WITH COLD COMPONENT GAS AND SUPPLIED TO A FRACTIONATING OPERATING HAVING A HIGH PRESSURE STAGE AND A LOW PRESSURE STAGE, COMPRISING THE STEPS OF PROVIDING FIRST AND SECOND STREAMS OF SUBSTANTIALLY DRY COMPRESSED GASEOUS MIXTURE CONTAINING HIGH BOILING POINT IMPURITY, FLOWING THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE IN ONE DIRECTION THROUGH A FIRST PATH AND FLOWING A FIRST PORTION OF COLD COMPONENT GAS FROM THE FRACTIONATING OPERATING INCLUDING A FIRST STREAM OF COLD COMPONENT GAS IN THE OPPOSITE DIRECTION IN HEAT EXCHANGE EFFECTING RELATION WITH THE FIRST PATH DURING ONE PERIOD OF THE HEAT INTERCHANGE TO THEREBY COOL THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE AND CONGEAL HIGH BOILING POINT, IMPURITY ALONG THE FIRST PATH, FLOWING THE FIRST STREAM OF COLD COMPONENT GAS THROUGH THE FIRST PATH IN THE OPPOSITE DIRECTION IN CONTACT WITH THE CONGEALED IMPURITY DURING A DECOND PERIOD OF THE HEAT INTERCHANGE, PROPORTIONING THE RELATIVE MASS OF THE FIRST PORTION OF COLD COMPONENT GAS AND THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE SO THAT THE FIRST STEAM OF COLD COMPONENT GAS SUBSTANTIALLY COMPLETELY SWEEPS OUT THE CONGEALED IMPURITY DURING THE SECOND PERIOD OF THE HEAT INTERCHANGE, PASSING THE SECOND STREAM OF COMPRESSED GASEOUS MIXTURE IN ONE DIRECTION THROUGH A SECOND PATH AND FLOWING A SECOND PORTION OF COLD COMPONENT GAS FROM THE FRACTIONATING OPERATION IN THE OPPOSITE DIRECTION IN HEAT-EXCHANGE EFFECTING RELATION WITH THE SECOND PATH TO THEREBY COOL THE SECOND STREAM OF COMPRESSED GASEOUS
Claim 2
Independent Claim
257 words
THE METHOD OF SEPARATING GASEOUS MIXTURES INTO COMPONENTS IN WHICH COMPRESSED GASEOUS MIXTURE IS REFRIGERATED BY HEAT INTERCHANGE WITH COLD COMPONENT GAS AND SUPPLIED TO A FRACTIONATING OPERATING HAVING A HIGH PRESSURE STAGE AND A LOW PRESSURE STAGE, COMPRISING THE STEPS OF PROVIDING FIRST AND SECOND STREAMS OF SUBSTANTIALLY DRY COMPRESSED GASEOUS MIXTURE CONTAINING HIGH BOILING POINT IMPURITY, FLOWING THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE IN ONE DIRECTION THROUGH A FIRST PATH AND FLOWING A FIRST PORTION OF COLD COMPONENT GAS FROM THE FRACTIONATING OPERATING INCLUDING A FIRST STREAM OF COLD COMPONENT GAS IN THE OPPOSITE DIRECTION IN HEAT EXCHANGE EFFECTING RELATION WITH THE FIRST PATH DURING ONE PERIOD OF THE HEAT INTERCHANGE TO THEREBY COOL THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE AND CONGEAL HIGH BOILING POINT, IMPURITY ALONG THE FIRST PATH, FLOWING THE FIRST STREAM OF COLD COMPONENT GAS THROUGH THE FIRST PATH IN THE OPPOSITE DIRECTION IN CONTACT WITH THE CONGEALED IMPURITY DURING A DECOND PERIOD OF THE HEAT INTERCHANGE, PROPORTIONING THE RELATIVE MASS OF THE FIRST PORTION OF COLD COMPONENT GAS AND THE FIRST STREAM OF COMPRESSED GASEOUS MIXTURE SO THAT THE FIRST STEAM OF COLD COMPONENT GAS SUBSTANTIALLY COMPLETELY SWEEPS OUT THE CONGEALED IMPURITY DURING THE SECOND PERIOD OF THE HEAT INTERCHANGE, PASSING THE SECOND STREAM OF COMPRESSED GASEOUS MIXTURE IN ONE DIRECTION THROUGH A SECOND PATH AND FLOWING A SECOND PORTION OF COLD COMPONENT GAS FROM THE FRACTIONATING OPERATION IN THE OPPOSITE DIRECTION IN HEAT-EXCHANGE EFFECTING RELATION WITH THE SECOND PATH TO THEREBY COOL THE SECOND STREAM OF COMPRESSED GASEOUS
References Cited (Backward Citations)
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Cited
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US2579498A
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US2504051A
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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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |