Patent US3081748A successfully refreshed from Google Patents.
US3081748A
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US
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Forced flow fluid heating unit
Assignee: Babcock and Wilcox Co
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Filing: 1958-12-19
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Granted: 1963-03-19
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Paul H Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:28
CPC Classifications
F; F22; F22B; F22B29/00; F22B29/06; F22B29/061; F22B29/062; F22B37/00; F22B37/02; F22B37/10; F22B37/14; F22B37/146; Y; Y10; Y10S; Y10S122/00; Y10S122/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A FORCED CIRCULATION FLUID HEATING UNIT, WALLS DEFINING A PLURALITY OF SEPARATE COMBUSTION CHAMBERS EACH HAVING A GAS OUTLET, MEANS FOR BURNING FUEL AT HIGH RATES OF HEAT RELEASE IN EACH OF SAID COMBUSTION CHAMBERS, ONE OF SAID WALLS OF EACH COMBUSTION CHAMBER INCLUDING A PLURALITY OF SIDE-BY-SIDE FLUID HEATING TUBE PANELS SUBJECT ONLY TO THE HEATING GASES GENERATED IN THE CORRESPONDING COMBUSTION CHAMBER, MEANS SUPPLYING FLUID IN PARALLEL FLOW RELATION TO ONE OF THE TUBE PANELS OF EACH COMBUSTION CHAMBER, AND MEANS INCLUDING A FLUID CONDUIT OUTSIDE OF SAID COMBUSTION CHAMBERS CONNECTING SAID ONE TUBE PANEL OF EACH ONE OF SAID COMBUSTION CHAMBERS FOR SERIES FLOW OF FLUID TO ANOTHER OF SAID TUBE PANELS OF ANOTHER OF SAID COMBUSTION CHAMBERS.
Claim 2
Dependent Claim
122 words
IN A FORCED CIRCULATION FLUID HEATING UNIT, WALLS DEFINING A PLURALITY OF SEPARATE COMBUSTION CHAMBERS EACH HAVING A GAS OUTLET, MEANS FOR BURNING FUEL AT HIGH RATES OF HEAT RELEASE IN EACH OF SAID COMBUSTION CHAMBERS, ONE OF SAID WALLS OF EACH COMBUSTION CHAMBER INCLUDING A PLURALITY OF SIDE-BY-SIDE FLUID HEATING TUBE PANELS SUBJECT ONLY TO THE HEATING GASES GENERATED IN THE CORRESPONDING COMBUSTION CHAMBER, MEANS SUPPLYING FLUID IN PARALLEL FLOW RELATION TO ONE OF THE TUBE PANELS OF EACH COMBUSTION CHAMBER, AND MEANS INCLUDING A FLUID CONDUIT OUTSIDE OF SAID COMBUSTION CHAMBERS CONNECTING SAID ONE TUBE PANEL OF EACH ONE OF SAID COMBUSTION CHAMBERS FOR SERIES FLOW OF FLUID TO ANOTHER OF SAID TUBE PANELS OF ANOTHER OF SAID COMBUSTION CHAMBERS.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |