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US3269366A
Expired / Lapsed
US
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Vapor generator furnace wall deslagger
Assignee: Combustion Engineering Inc
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Filing: 1964-10-20
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Granted: 1966-08-30
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Expires: 1984-10-20
Abstract
No abstract record available.
Inventors
- 👤 Virginius Z Caracristi
- 👤 Elwood P Petit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:02
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A FURNACE STRUCTURE AND APPARATUS FOR REMOVING ASH FROM THE WALLS THEREOF COMPRISING MEANS FOR BURNING AN ASH BEARING FUEL WITHIN THE FURNACE; A PLURALITY OF TUBES LINING A WALL OF SAID FURNACE, THE AXES OF SAID TUBES FORMING A FIRST COMMON PLANE; THE FURNACE SIDE OF SAID TUBES FORMING A SECOND PLANE; MEANS FOR INTERMITTENTLY INTRODUCING A GASEOUS CLEANING MEDIUM INTERMEDIATE ADJACENT TUBES; AND MEANS FOR DIRECTING THE CLEANING MEDIUM IN A DIRECTION ESSENTIALLY PARALLEL TO THE TUBES LINING THE FUR-
Claim 2
Dependent Claim
82 words
A FURNACE STRUCTURE AND APPARATUS FOR REMOVING ASH FROM THE WALLS THEREOF COMPRISING MEANS FOR BURNING AN ASH BEARING FUEL WITHIN THE FURNACE; A PLURALITY OF TUBES LINING A WALL OF SAID FURNACE, THE AXES OF SAID TUBES FORMING A FIRST COMMON PLANE; THE FURNACE SIDE OF SAID TUBES FORMING A SECOND PLANE; MEANS FOR INTERMITTENTLY INTRODUCING A GASEOUS CLEANING MEDIUM INTERMEDIATE ADJACENT TUBES; AND MEANS FOR DIRECTING THE CLEANING MEDIUM IN A DIRECTION ESSENTIALLY PARALLEL TO THE TUBES LINING THE FUR-
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |