US3210181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous fuel control process for furnaces
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-12-01
•
Granted: 1965-10-05
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Erwin H Manny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:42
CPC Classifications
C; C21; C21B; C21B5/00; C21B5/001; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR CONTROLLING THE INJECTION OF GASEOUS FUEL INTO A FURNACE, WHICH PROCESS COMPRISES INJECTING HEATED BLAST AIR THROUGH A TUYERE INTO A FURNACE, INJECTING GASEOUS HYDROCARBON FUEL THROUGH A TUYERE INTO A FURNACE, PROVIDING A POSITIVE FLOW OF GASEOUS FUEL TO THE FURNACE BY CONTINUOUSLY MONITORING THE POSITIVE DIFFERENTIAL PRESSURE BETWEEN THE BLAST AIR AND THE GASEOUS FUEL, AND STOPPING THE FLOW OF FUEL WHEN THE FUEL PRESSURE FALLS BELOW A PREDETERMINED POSITIVE PRESSURE DIFFERENTIAL OVER THE PRESSURE OF THE BLAST AIR.
Claim 2
Dependent Claim
84 words
A PROCESS FOR CONTROLLING THE INJECTION OF GASEOUS FUEL INTO A FURNACE, WHICH PROCESS COMPRISES INJECTING HEATED BLAST AIR THROUGH A TUYERE INTO A FURNACE, INJECTING GASEOUS HYDROCARBON FUEL THROUGH A TUYERE INTO A FURNACE, PROVIDING A POSITIVE FLOW OF GASEOUS FUEL TO THE FURNACE BY CONTINUOUSLY MONITORING THE POSITIVE DIFFERENTIAL PRESSURE BETWEEN THE BLAST AIR AND THE GASEOUS FUEL, AND STOPPING THE FLOW OF FUEL WHEN THE FUEL PRESSURE FALLS BELOW A PREDETERMINED POSITIVE PRESSURE DIFFERENTIAL OVER THE PRESSURE OF THE BLAST AIR.
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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 |