US2642340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of oxygen
Assignee: Standard Oil Development Co
•
Filing: 1946-05-10
•
Granted: 1953-06-16
•
Expires: 1966-05-10
Abstract
No abstract record available.
Inventors
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/02; C01B13/08; C01B13/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR PRODUCING OXYGEN FROM AIR WHICH COMPRISES CONTACTING IN AN OXIDATION ZONE SAID AIR WITH THE SOLID OXYGEN ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF METALS AND METAL OXIDES READILY OXIDIZABLE BY AIR TO FORM A SOLID OXYGEN COMPOUND GIVING OFF OXYGEN WHEN HEAT ED, MAINTAINING SAID OXYGEN ACCEPTOR IN THE FORM OF A DENSE TURBULENT FLUIDIZED BED HAVING A WELL DEFINED UPPER DENSE PHASE LEVEL BY CAUSING AIR TO FLOW UPWARDLY THROUGH SAID BED AT A FLUIDIZING VELOCITY, WITHDRAWING GASIFORM MATERIAL CONTAINING FREE OXYGEN FROM SAID BED AND CAUSING SAID GASIFORM MATERIAL TO FLOW THROUGH A SECOND FLUIDIZED BED OF SAID OXYGEN ACCEPTOR AT A FLUIDIZING VELOCITY, CHARGING FUEL TO SAID SECOND NAMED
Claim 2
Dependent Claim
116 words
A PROCESS FOR PRODUCING OXYGEN FROM AIR WHICH COMPRISES CONTACTING IN AN OXIDATION ZONE SAID AIR WITH THE SOLID OXYGEN ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF METALS AND METAL OXIDES READILY OXIDIZABLE BY AIR TO FORM A SOLID OXYGEN COMPOUND GIVING OFF OXYGEN WHEN HEAT ED, MAINTAINING SAID OXYGEN ACCEPTOR IN THE FORM OF A DENSE TURBULENT FLUIDIZED BED HAVING A WELL DEFINED UPPER DENSE PHASE LEVEL BY CAUSING AIR TO FLOW UPWARDLY THROUGH SAID BED AT A FLUIDIZING VELOCITY, WITHDRAWING GASIFORM MATERIAL CONTAINING FREE OXYGEN FROM SAID BED AND CAUSING SAID GASIFORM MATERIAL TO FLOW THROUGH A SECOND FLUIDIZED BED OF SAID OXYGEN ACCEPTOR AT A FLUIDIZING VELOCITY, CHARGING FUEL TO SAID SECOND NAMED
References Cited (Backward Citations)
US70705A
Cited
US874596A
Cited
US945048A
Cited
US1048812A
Cited
US1984380A
Cited
US2362270A
Cited
US2396709A
Cited
US2405395A
Cited
US2418402A
Cited
US2456072A
Cited
US2473129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |