US2673794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of gas
Assignee: Humphreys and Glasgow Ltd
•
Filing: 1952-03-14
•
Granted: 1954-03-30
•
Expires: 1972-03-14
Abstract
No abstract record available.
Inventors
- 👤 Williams Norman Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:32
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/46; C10; C10G; C10G11/00; C10G11/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
A CYCLIC PROCESS FOR THE PRODUCTION OF COMBUSTIBLE GASES WHICH COMPRISES PASSING A HYDROCARBON AND A PREHEATED OXIDISING GAS SELECTED FROM THE GROUP CONSISTING OF STREAM, CARBON DIOXIDE AND MIXTURES THEREOF THROUGHT A CATALYST MASS IN A FIRST DIRECTION, REMOVING COMBUSTIBLE GASES FROM SAID CATALYST MASS, ABSTRACTING SENSIBLE HEAT FROM SAID COMBUSTIBLE GASES, TRANSFERRING SAID HEAT TO A PORTION OF AIR, PASSING SAID PORTION OF AIR THROUGH SAID CATALYST MASS IN A SECOND DIRECTION OPPOSITE TO SAID FIRST DIRECTION AND BURNING CARBONACEOUS MATERIAL IN SAID AIR THEREBY FORMING HOT COMBUSTION PRODUCTS, ABSTRACTING SENSIBLE HEAT FROM SAID HOT COMBUSTION PRODUCTS, TRANSFERRING A PORTION OF THIS HEAT TO AT LEAST A MAJOR PART OF A FURTHER PORTION OF AIR, PASSING SAID FURTHER PORTION OF AIR THROUGH SAID CATALYST MASS IN SAID FIRST DIRECTION AND BURNING CARBONACEOUS MATERIAL IN SAID FURTHUR PORTION OF AIR, AND USING A FURTHER PORTION OF THE SENSIBLE HEAT IN SAID HOT COMBUSTION PRODUCTS FOR PREHEATING THE OXIDISING GAS FOR THE NEXT SUCCEEDING CYCLE OF THE PROCESS, THE AMOUNTS OF AIR PASSED IN SAID FIRST DIRECTION AND SAID SECOND DIRECTION BEING SO ADJUSTED THAT THE SUM OF THE HEAT CAPACITIES OF SAID OXIDISING GAS AND THE SAID FURTHER PORTION OF AIR IS SUBSTANTIALLY EQUAL TO THE HEAT CAPACITY OF SAID COMBUSTION PRODUCTS
Claim 2
Dependent Claim
213 words
A CYCLIC PROCESS FOR THE PRODUCTION OF COMBUSTIBLE GASES WHICH COMPRISES PASSING A HYDROCARBON AND A PREHEATED OXIDISING GAS SELECTED FROM THE GROUP CONSISTING OF STREAM, CARBON DIOXIDE AND MIXTURES THEREOF THROUGHT A CATALYST MASS IN A FIRST DIRECTION, REMOVING COMBUSTIBLE GASES FROM SAID CATALYST MASS, ABSTRACTING SENSIBLE HEAT FROM SAID COMBUSTIBLE GASES, TRANSFERRING SAID HEAT TO A PORTION OF AIR, PASSING SAID PORTION OF AIR THROUGH SAID CATALYST MASS IN A SECOND DIRECTION OPPOSITE TO SAID FIRST DIRECTION AND BURNING CARBONACEOUS MATERIAL IN SAID AIR THEREBY FORMING HOT COMBUSTION PRODUCTS, ABSTRACTING SENSIBLE HEAT FROM SAID HOT COMBUSTION PRODUCTS, TRANSFERRING A PORTION OF THIS HEAT TO AT LEAST A MAJOR PART OF A FURTHER PORTION OF AIR, PASSING SAID FURTHER PORTION OF AIR THROUGH SAID CATALYST MASS IN SAID FIRST DIRECTION AND BURNING CARBONACEOUS MATERIAL IN SAID FURTHUR PORTION OF AIR, AND USING A FURTHER PORTION OF THE SENSIBLE HEAT IN SAID HOT COMBUSTION PRODUCTS FOR PREHEATING THE OXIDISING GAS FOR THE NEXT SUCCEEDING CYCLE OF THE PROCESS, THE AMOUNTS OF AIR PASSED IN SAID FIRST DIRECTION AND SAID SECOND DIRECTION BEING SO ADJUSTED THAT THE SUM OF THE HEAT CAPACITIES OF SAID OXIDISING GAS AND THE SAID FURTHER PORTION OF AIR IS SUBSTANTIALLY EQUAL TO THE HEAT CAPACITY OF SAID COMBUSTION PRODUCTS
References Cited (Backward Citations)
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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) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |