US2840043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid heater
Assignee: Babcock and Wilcox Co
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Filing: 1956-02-27
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Granted: 1958-06-24
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Durham Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:44
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/34; F22B21/341
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A FLUID HEATER COMPRISING WALLS DEFINING A FLUID COOLED FURNACE, MEANS FOR BURNING HIGH HEAT CONTENT FUEL IN SAID FURNACE, WALLS DEFINING AN ENCLOSURE POSITIONED BELOW SAID FLUID COOLED FURNACE AND OPEN UPWARDLY THERETO, MEANS FORMING CATALYTIC ELEMENTS IN SAID ENCLOSURE, MEANS FOR PASSING A LOW HET CONTENT CARBON CONTAINING GAS UPWARDLY THROUGH SAID CATALYTIC ELEMENTS TO OXIDIZE THE CARBON CONTAINING GAS AND TO RAISE ITS TEMPERATURE, AND MEANS SHIELDING SAID CATALYTIC ELEMENTS FROM DESTRUCTIVE RADIANT HEAT EFFECTS CAUSED BY THE COMBUSTION OF SAID HEAT CONTENT FUEL IN SAID FLUID COOLED FURNACE.
Claim 2
Dependent Claim
92 words
A FLUID HEATER COMPRISING WALLS DEFINING A FLUID COOLED FURNACE, MEANS FOR BURNING HIGH HEAT CONTENT FUEL IN SAID FURNACE, WALLS DEFINING AN ENCLOSURE POSITIONED BELOW SAID FLUID COOLED FURNACE AND OPEN UPWARDLY THERETO, MEANS FORMING CATALYTIC ELEMENTS IN SAID ENCLOSURE, MEANS FOR PASSING A LOW HET CONTENT CARBON CONTAINING GAS UPWARDLY THROUGH SAID CATALYTIC ELEMENTS TO OXIDIZE THE CARBON CONTAINING GAS AND TO RAISE ITS TEMPERATURE, AND MEANS SHIELDING SAID CATALYTIC ELEMENTS FROM DESTRUCTIVE RADIANT HEAT EFFECTS CAUSED BY THE COMBUSTION OF SAID HEAT CONTENT FUEL IN SAID FLUID COOLED FURNACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |