US3209810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side-entry fluid fuel injection system for furnaces
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-04-24
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Granted: 1965-10-05
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Expires: 1982-04-24
Abstract
No abstract record available.
Inventors
- 👤 John A Schuvart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:37
CPC Classifications
F; F23; F23C; F23C99/00; C; C21; C21B; C21B5/00; C21B5/001; C21B7/00; C21B7/16; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; F23C2700/00; F23C2700/02; F23C2700/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN APPARATUS FOR INJECTING FLUID FUEL IN ADMIXTURE WITH HOT BLAST AIR INTO A FURNACE WHICH COMPRISES A FUEL INJECTION NOZZLE AND A BLAST AIR CONDUIT, SAID NOZZLE PASSING THROUGH THE SIDE WALL OF SAID CONDUIT MAKING AN ACUTE ANGLE WITH AN AXIAL CENTER LINE OF SAID CONDUIT AND EXTENDING TO A POINT SUBSTANTIALLY AT THE CENTER LINE OF SAID CONDUIT, SAID FUEL INJECTION NOZZLE BEING CHARACTERIZED BY HAVING IN COMBINATION A NOZZLE OUTER SHROUD AND A WITHDRAWABLE FUEL INJECTION NOZZLE, SAID NOZZLE OUTER SHROUD BEING FITTED THROUGH THE SIDE WALL OF SAID CONDUIT, SAID WITHDRAWABLE FUEL INJECTION NOZZLE BEING SUBSTANTIALLY CONCENTRICALLY AND LONGITUDINALLY DISPOSED WITHIN AND WITHDRAWABLE FROM SAID OUTER SHROUD MEMBER.
Claim 2
Independent Claim
113 words
AN APPARATUS FOR INJECTING FLUID FUEL IN ADMIXTURE WITH HOT BLAST AIR INTO A FURNACE WHICH COMPRISES A FUEL INJECTION NOZZLE AND A BLAST AIR CONDUIT, SAID NOZZLE PASSING THROUGH THE SIDE WALL OF SAID CONDUIT MAKING AN ACUTE ANGLE WITH AN AXIAL CENTER LINE OF SAID CONDUIT AND EXTENDING TO A POINT SUBSTANTIALLY AT THE CENTER LINE OF SAID CONDUIT, SAID FUEL INJECTION NOZZLE BEING CHARACTERIZED BY HAVING IN COMBINATION A NOZZLE OUTER SHROUD AND A WITHDRAWABLE FUEL INJECTION NOZZLE, SAID NOZZLE OUTER SHROUD BEING FITTED THROUGH THE SIDE WALL OF SAID CONDUIT, SAID WITHDRAWABLE FUEL INJECTION NOZZLE BEING SUBSTANTIALLY CONCENTRICALLY AND LONGITUDINALLY DISPOSED WITHIN AND WITHDRAWABLE FROM SAID OUTER SHROUD MEMBER.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |