Patent US2519873A successfully refreshed from Google Patents.
US2519873A
Expired / Lapsed
US
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Adsorption process and apparatus
Assignee: Union Oil Company of California
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Filing: 1945-09-24
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Granted: 1950-08-22
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Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Clyde H O Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:01
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D2253/00; B01D2253/10; B01D2253/102; B01D2256/00; B01D2256/24; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40086; B01D2259/40088; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE BY SELECTIVE ADSORPTION WHICH COPRISES MEANS FOR CONTACTING SAID GASEOUS MIXTURE WITH A SOLID ADSORBENT IN AN ADSORPTION SECTION THEREBY ADSORBING MORE READILY ADSORBABLE CONSTITUENTS OF SAID GBASEOUS MIXTURE ON SAID ADSORBENT, MEANS FOR REMOVING UNADSORBED GASES FROM SAID ADSORPTION SECTION, AND MEANS FOR STRIPPING ADSORBED GASES FROM SAID ADSORBENT IN A STRIPPING SECTION, SAID LAST-NAMED MEANS COMPRISING A STRIPPING SECTION HAVING A CONTACTING PART AND A HEATING PART, MEANS FOR PASSING SAID ADSORBENT SUCCESSIVELY THROUGH SAID CONTACTING PART AND SAID HEATING PART, MEANS FOR PASSING A STRIPPING GAS THROUGH SAID ADSORBENT IN BOTH PARTS OF SAID STRIPPING SECTION, AND MEANS FOR INDIRECTLY HEATING SAID ADSORBENT ONLY IN SAID HEATING PART.
Claim 2
Independent Claim
120 words
AN APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE BY SELECTIVE ADSORPTION WHICH COPRISES MEANS FOR CONTACTING SAID GASEOUS MIXTURE WITH A SOLID ADSORBENT IN AN ADSORPTION SECTION THEREBY ADSORBING MORE READILY ADSORBABLE CONSTITUENTS OF SAID GBASEOUS MIXTURE ON SAID ADSORBENT, MEANS FOR REMOVING UNADSORBED GASES FROM SAID ADSORPTION SECTION, AND MEANS FOR STRIPPING ADSORBED GASES FROM SAID ADSORBENT IN A STRIPPING SECTION, SAID LAST-NAMED MEANS COMPRISING A STRIPPING SECTION HAVING A CONTACTING PART AND A HEATING PART, MEANS FOR PASSING SAID ADSORBENT SUCCESSIVELY THROUGH SAID CONTACTING PART AND SAID HEATING PART, MEANS FOR PASSING A STRIPPING GAS THROUGH SAID ADSORBENT IN BOTH PARTS OF SAID STRIPPING SECTION, AND MEANS FOR INDIRECTLY HEATING SAID ADSORBENT ONLY IN SAID HEATING PART.
References Cited (Backward Citations)
US1422007A
Cited
US1784536A
Cited
US1617960A
Cited
US1836301A
Cited
US1825707A
Cited
US2252550A
Cited
US2384311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |