US3320931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generating apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1961-02-02
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Granted: 1967-05-23
•
Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Durham Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:52
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/183; C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; C21C5/40; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
APPARATUS FOR CONFINING THE FLOW OF HIGH TEMPERATURE GASES SAID APPARATUS INCLUDING AN OXYGEN-STEEL CONVERTER VESSEL HAVING A GAS DISCHARGE OPENING IN ITS UPPER END, WALLS INCLUDING FLUID COOLED TUBES FORMING A FLOW PASSAGEWAY FOR SAID GASES HAVING A GAS INLET AT ONE END AND A GAS OUTLET AT ITS OTHER END, FLUID INLET HEADER MEANS POSITIONED SUPER-ADJACENT THE GAS DISCHARGE OPENING OF SAID VESSEL AND CONNECTED WITH THE LOWER ENDS OF SAID TUBES AND DEFINING THE GAS INLET END OF SAID PASSAGEWAY, FLUID OUTLET HEADER MEANS CONNECTED WITH THE UPPER ENDS OF SAID TUBES AND DEFINING THE GAS OUTLET END OF SAID PASSAGEWAY, AND MEANS FOR PROVIDING FREE ACCESS FROM THE EXTERIOR OF THE
Claim 2
Dependent Claim
115 words
APPARATUS FOR CONFINING THE FLOW OF HIGH TEMPERATURE GASES SAID APPARATUS INCLUDING AN OXYGEN-STEEL CONVERTER VESSEL HAVING A GAS DISCHARGE OPENING IN ITS UPPER END, WALLS INCLUDING FLUID COOLED TUBES FORMING A FLOW PASSAGEWAY FOR SAID GASES HAVING A GAS INLET AT ONE END AND A GAS OUTLET AT ITS OTHER END, FLUID INLET HEADER MEANS POSITIONED SUPER-ADJACENT THE GAS DISCHARGE OPENING OF SAID VESSEL AND CONNECTED WITH THE LOWER ENDS OF SAID TUBES AND DEFINING THE GAS INLET END OF SAID PASSAGEWAY, FLUID OUTLET HEADER MEANS CONNECTED WITH THE UPPER ENDS OF SAID TUBES AND DEFINING THE GAS OUTLET END OF SAID PASSAGEWAY, AND MEANS FOR PROVIDING FREE ACCESS FROM THE EXTERIOR OF THE
References Cited (Backward Citations)
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FR366495A
Cited
US2007540A
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US2360855A
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US2831467A
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DE972340C
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US2862701A
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DE1063191B
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |