US3216178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for regenerating an adsorbent bed
Assignee: Air Liquide SA
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Filing: 1962-07-20
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Granted: 1965-11-09
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Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Sauty Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:10
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; B; B01; B01D; B01D41/00; B01D41/04; B01D53/00; B01D53/02; B01D53/04; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08; B01J20/30; B01J20/34; B01J20/3433; B01J20/3483; C; C01; C01B; C01B23/00; C01B3/00; C01B3/50; C01B3/56; F25J; F25J5/00; B01D2257/00; B01D2257/10; B01D2257/102; B01D2257/50; B01D2257/504; B01D2259/00; B01D2259/40; B01D2259/40001; B01D2259/402; B01J2220/00; B01J2220/50; B01J2220/56; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PROCESS FOR REGENERATING AN ADSORBENT BED CHARGED WITH IMPURITIES DURING THE PURIFICATION OF A MAIN STREAM OF AN IMPURE FIRST GAS, COMPRISING THE STEPS OF: (A) WARMING UP AN AUXILIARY STREAM OF SAID IMPURE FIRST GAS AND FLUSHING SAID ADSORBENT BED WITH SAID WARMED-UP AUXILIARY STREAM UNTIL SAID IMPURITIES ARE DESORBED AND CARRIED OUT OF SAID ADSORBENT BED TO PRODUCE A REGENERATED ADSORBENT BED, (B) FLOWING THROUGH SAID REGENERATED ADSORBENT BED A STREAM OF A COOLING GAS OF SUBSTANTIALLY THE SAME TEMPERATURE AS THAT OF SAID IMAPURE FIRST GAS UNTIL A SUBSTANTIAL ZONE ONLY OF THE ADSORBEND BED NEAR THE INLET END OF SAID COOLING GAS INTO SAID ADSORBENT BED IS COOLED TO SUBSTANTIALLY THE TEMPERATURE OF SAID MAIN STREAM OF IMPURE FIRST GAS, AND
Claim 2
Dependent Claim
126 words
A PROCESS FOR REGENERATING AN ADSORBENT BED CHARGED WITH IMPURITIES DURING THE PURIFICATION OF A MAIN STREAM OF AN IMPURE FIRST GAS, COMPRISING THE STEPS OF: (A) WARMING UP AN AUXILIARY STREAM OF SAID IMPURE FIRST GAS AND FLUSHING SAID ADSORBENT BED WITH SAID WARMED-UP AUXILIARY STREAM UNTIL SAID IMPURITIES ARE DESORBED AND CARRIED OUT OF SAID ADSORBENT BED TO PRODUCE A REGENERATED ADSORBENT BED, (B) FLOWING THROUGH SAID REGENERATED ADSORBENT BED A STREAM OF A COOLING GAS OF SUBSTANTIALLY THE SAME TEMPERATURE AS THAT OF SAID IMAPURE FIRST GAS UNTIL A SUBSTANTIAL ZONE ONLY OF THE ADSORBEND BED NEAR THE INLET END OF SAID COOLING GAS INTO SAID ADSORBENT BED IS COOLED TO SUBSTANTIALLY THE TEMPERATURE OF SAID MAIN STREAM OF IMPURE FIRST GAS, AND
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |