US2804940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dehydrating gas
Assignee: Individual
•
Filing: 1956-02-21
•
Granted: 1957-09-03
•
Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur J L Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:27
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR DEHYDRATING A MOISTURE CONTAINING HYDROCARBON GAS WHICH COMPRISES PASSING THE GAS AT A PRESSURE IN EXCESS OF 100 P.S.I.G. INTO A PREDRYING ZONE, SAID ZONE COMPRISING A PLURALITY OF SERIALLY ARRANGED VAPOR-LIQUID CONTACTING ZONES, PASSING A HYGROSCOPIC LIQUID SUCCESSIVELY THROUGH SAID CONTACTING ZONES, PASSING ALL OF SAID WET GAS THROUGH EACH OF SAID CONTACTING ZONE COUNTERCURRENT TO THE FLOW OF SAID LIQUID, REMOVING SPENT LIQUID FROM THE FIRST OF SAID CONTACTING ZONES, PASSING THE PARTIALLY DEHYDRATED GAS FROM THE LEAST OF SAID ZONES UPWARDLY THROUGH A COMPACT BED DELIQUESCENT SOLID PARTICLES WHEREIN ALL OF SAID GAS CONTACTS SAID DELIQUESCENT PARTICULES, THE DEHYDRATING POWER OF SAID PARTICULES INCREASING IN THE DIREACTION OF FLOW OF SAID GAS SO THAT THE LAST PARTICLES CONTACTED BY SAID GAS ARE SUBSTANTIALLY ANHYDROUS, REMOVING
Claim 2
Dependent Claim
131 words
A PROCESS FOR DEHYDRATING A MOISTURE CONTAINING HYDROCARBON GAS WHICH COMPRISES PASSING THE GAS AT A PRESSURE IN EXCESS OF 100 P.S.I.G. INTO A PREDRYING ZONE, SAID ZONE COMPRISING A PLURALITY OF SERIALLY ARRANGED VAPOR-LIQUID CONTACTING ZONES, PASSING A HYGROSCOPIC LIQUID SUCCESSIVELY THROUGH SAID CONTACTING ZONES, PASSING ALL OF SAID WET GAS THROUGH EACH OF SAID CONTACTING ZONE COUNTERCURRENT TO THE FLOW OF SAID LIQUID, REMOVING SPENT LIQUID FROM THE FIRST OF SAID CONTACTING ZONES, PASSING THE PARTIALLY DEHYDRATED GAS FROM THE LEAST OF SAID ZONES UPWARDLY THROUGH A COMPACT BED DELIQUESCENT SOLID PARTICLES WHEREIN ALL OF SAID GAS CONTACTS SAID DELIQUESCENT PARTICULES, THE DEHYDRATING POWER OF SAID PARTICULES INCREASING IN THE DIREACTION OF FLOW OF SAID GAS SO THAT THE LAST PARTICLES CONTACTED BY SAID GAS ARE SUBSTANTIALLY ANHYDROUS, REMOVING
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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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |