US2942932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of oxidizing carbon monoxide and hydrocarbon in exhaust gases
Assignee: California Research LLC
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Filing: 1957-04-01
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Granted: 1960-06-28
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Expires: 1977-04-01
Abstract
No abstract record available.
Inventors
- 👤 Laverne P Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/0807; F01N3/0828; F01N3/0835; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F01N13/00; F01N13/009; F01N3/0871; F01N3/0878; F01N3/10; F01N3/18; F01N3/20; F01N3/2053; F01N3/24; F01N3/30; F01N2240/00; F01N2240/18; F01N2250/00; F01N2250/12; F01N2410/00; F01N2410/12; F01N2470/00; F01N2470/30; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A PROCESS FOR OXIDIZING CARBON MONOXIDE AND HYDROCARBONS CONTAINED IN EXHAUST GASES THAT PROGESSIVELY INCREASE IN TEMPERATURE FROM BELOW ABOUT 800*F. TO ABOUT 1200*F. WHICH COMPRISES PASSING SAID GASES AT A TEMPERATURE UP TO ABOUT 800*F. INTO AN ADSORPTION ZONE CONTAINING AN ASBORBENT TO ADSORB SAID CARBON MONOXIDE AND HYDROCARBONS, PASSING THE RESULTING TREATED EXHAUST GASES INTO AN OXIDATION ZONE CONTAINING AN OXIDATION CATALYST TO PREHEAT SAID CATALYST, WITHDRAWING THE TREATED EXHAUST GASES FROM SAID OXIDATION ZONE, DISCONTINUING THE PASSAGE OF THE EXHAUST GASES TO SAID ABSORPTION ZONE WHEN THE TEMPERATURE OF SAID GASES IS ABOUT 800*F., PASSING SAID EXHAUST GASES AT A TEMPERATURE OF FROM ABOUT 8000* TO ABOUT 1200*F. TO AN EDUCATION ZONE, CONTACTING THE EXHAUST GASES WITH A SEPARATE OXYGEN-CONTAINING GAS IN SAID EDUCATION ZONE, PASSING THE RESULTING GASEOUS MIXTURE FROM SAID EDUCATION ZONE TO SAID OXIDATION ZONE, AND WITHDRAWING AN OXIDIZED GASEOUS STREAM FROM SAID OXIDATION ZONE.
Claim 2
Dependent Claim
151 words
A PROCESS FOR OXIDIZING CARBON MONOXIDE AND HYDROCARBONS CONTAINED IN EXHAUST GASES THAT PROGESSIVELY INCREASE IN TEMPERATURE FROM BELOW ABOUT 800*F. TO ABOUT 1200*F. WHICH COMPRISES PASSING SAID GASES AT A TEMPERATURE UP TO ABOUT 800*F. INTO AN ADSORPTION ZONE CONTAINING AN ASBORBENT TO ADSORB SAID CARBON MONOXIDE AND HYDROCARBONS, PASSING THE RESULTING TREATED EXHAUST GASES INTO AN OXIDATION ZONE CONTAINING AN OXIDATION CATALYST TO PREHEAT SAID CATALYST, WITHDRAWING THE TREATED EXHAUST GASES FROM SAID OXIDATION ZONE, DISCONTINUING THE PASSAGE OF THE EXHAUST GASES TO SAID ABSORPTION ZONE WHEN THE TEMPERATURE OF SAID GASES IS ABOUT 800*F., PASSING SAID EXHAUST GASES AT A TEMPERATURE OF FROM ABOUT 8000* TO ABOUT 1200*F. TO AN EDUCATION ZONE, CONTACTING THE EXHAUST GASES WITH A SEPARATE OXYGEN-CONTAINING GAS IN SAID EDUCATION ZONE, PASSING THE RESULTING GASEOUS MIXTURE FROM SAID EDUCATION ZONE TO SAID OXIDATION ZONE, AND WITHDRAWING AN OXIDIZED GASEOUS STREAM FROM SAID OXIDATION ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |