Patent US3105540A successfully refreshed from Google Patents.
US3105540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for burning low heat content fuel
Assignee: Babcock and Wilcox Co
•
Filing: 1954-04-07
•
Granted: 1963-10-01
•
Expires: 1974-04-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Hardgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:18
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/061; F23G7/065; F22; F22B; F22B31/00; F22B31/04; F23C; F23C1/00; F23C1/08; F23C5/00; F23C5/08; F23C5/32; F23D; F23D17/00; F23G5/00; F23G5/44; F23G5/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE METHOD OF BURNING A LOW HEAT CONTENT GASEOUS FUEL INCAPABLE OF SELF-SUSTAINING COMBUSTION IN A VERTICALLY ELONGATED CYLINDRICAL COMBUSTION ZONE WHICH COMPRISES INTRODUCING A PLURALITY OF STREAMS OF HIGH HEAT VALUE FLUENT FUEL AND COMBUSTION AIR INTO SAID COMBUSTION ZONE IN VERTICALLY SPACED SUBSTANTIALLY HORIZONTAL PLANES NORMAL TO THE AXIS OF SAID COMBUSTION ZONE, IGNITING AND BURNING SAID FLUENT FUEL TO THE IGNITION TEMPERATURE OF A TEMPERATURE IN EXCESS OF THE IGNITION TEMPERATURE OF SAID GASEOUS FUEL, SIMULTANEOUSLY INTRODUCING STREAMS OF SAID LOW HEAT CONTENT GASEOUS FUEL HAVING A HIGH SENSIBLE HEAT INTO SAID COMBUSTION ZONE IN A DIRECTION NORMAL TO THE AXIS OF SAID ZONE AND SPACED AXIALLY BETWEEN SAID PLANES OF SAID INTRODUCED STREAMS OF HIGH HEAT VALUE FUEL, IGNITING AND BURNING SAID GASEOUS FUEL IN SAID COMBUSTION ZONE AND REGULATING THE AMOUNT OF COMBUSTION AIR INTRODUCED WITH SAID HIGH HEAT VALUE FLUENT FUEL TO MEET THE AIR REQUIREMENTS FOR THE COMBUSTION OF SAID LOW HEAT CONTENT GASEOUS FUEL.
Claim 2
Independent Claim
162 words
THE METHOD OF BURNING A LOW HEAT CONTENT GASEOUS FUEL INCAPABLE OF SELF-SUSTAINING COMBUSTION IN A VERTICALLY ELONGATED CYLINDRICAL COMBUSTION ZONE WHICH COMPRISES INTRODUCING A PLURALITY OF STREAMS OF HIGH HEAT VALUE FLUENT FUEL AND COMBUSTION AIR INTO SAID COMBUSTION ZONE IN VERTICALLY SPACED SUBSTANTIALLY HORIZONTAL PLANES NORMAL TO THE AXIS OF SAID COMBUSTION ZONE, IGNITING AND BURNING SAID FLUENT FUEL TO THE IGNITION TEMPERATURE OF A TEMPERATURE IN EXCESS OF THE IGNITION TEMPERATURE OF SAID GASEOUS FUEL, SIMULTANEOUSLY INTRODUCING STREAMS OF SAID LOW HEAT CONTENT GASEOUS FUEL HAVING A HIGH SENSIBLE HEAT INTO SAID COMBUSTION ZONE IN A DIRECTION NORMAL TO THE AXIS OF SAID ZONE AND SPACED AXIALLY BETWEEN SAID PLANES OF SAID INTRODUCED STREAMS OF HIGH HEAT VALUE FUEL, IGNITING AND BURNING SAID GASEOUS FUEL IN SAID COMBUSTION ZONE AND REGULATING THE AMOUNT OF COMBUSTION AIR INTRODUCED WITH SAID HIGH HEAT VALUE FLUENT FUEL TO MEET THE AIR REQUIREMENTS FOR THE COMBUSTION OF SAID LOW HEAT CONTENT GASEOUS FUEL.
References Cited (Backward Citations)
FR847570A
Cited
US867177A
Cited
US901232A
Cited
US1441721A
Cited
US1969501A
Cited
US2119580A
Cited
US2216117A
Cited
GB697840A
Cited
GB698939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |