US2890106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treating fluidized solids
Assignee: Dorr Oliver Inc
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Filing: 1955-08-30
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Granted: 1959-06-09
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:23
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
APPARATUS FOR CONDUCTING FLUIDIZED REACTIONS, COMPRISING A REACTOR HAVING A PLURALITY OF SUPERPOSED ZONES INCLUDING AN UPPER ZONE AND AN INTERMEDIATE ZONE AS WELL AS A LOWER ZONE, PERFORATED PLATES FIXEDLY POSITIONED AT THE BOTTOM OF EACH ZONE FOR SUPPORTING SOLIDS THEREON WHILE YET ADMITTING THE PASSAGE OF A STREAM OF UPRISING GAS THERETHROUGH, VERTICAL PARTITIONING MEANS SUPERPOSED ON THE PERFORATD PLATE OF THE UPPER ZONE TO DIVIDE THE CROSS-SECTIONAL AREA OF SUCH PLATE AS WELL AS A PORTION OF THE SPACE OVERLYING IT INTO TWO CHAMBERS EACH CAPABLE OF HOLDING SOLIDS, VALVED CONDUIT MEANS FOR CONTROLLABLY INTRODUCING FLUIDIZING TREATMENT GAS INTO THE REACTOR AT THE BOTTOM THEREOF, VALVED CONDUIT MEANS FOR CONTROLLABLY INTRODUCING COMBUSTION SUPPORTING GAS INTO THE REACTOR IN ORDER TO SUPPORT CUMBUSTION IN THE INTERMEDIATE ZONE, VALVED CONDUIT MEANS FOR INTRODUCING FUEL TO THE REACTOR DURING INITIAL HEATING CONDUIT MEANS FOR DISCHARGING GASES FROM THE REACTOR, CONDUIT MEANS FOR OVERFLOWING SOLIDS
Claim 2
Dependent Claim
154 words
APPARATUS FOR CONDUCTING FLUIDIZED REACTIONS, COMPRISING A REACTOR HAVING A PLURALITY OF SUPERPOSED ZONES INCLUDING AN UPPER ZONE AND AN INTERMEDIATE ZONE AS WELL AS A LOWER ZONE, PERFORATED PLATES FIXEDLY POSITIONED AT THE BOTTOM OF EACH ZONE FOR SUPPORTING SOLIDS THEREON WHILE YET ADMITTING THE PASSAGE OF A STREAM OF UPRISING GAS THERETHROUGH, VERTICAL PARTITIONING MEANS SUPERPOSED ON THE PERFORATD PLATE OF THE UPPER ZONE TO DIVIDE THE CROSS-SECTIONAL AREA OF SUCH PLATE AS WELL AS A PORTION OF THE SPACE OVERLYING IT INTO TWO CHAMBERS EACH CAPABLE OF HOLDING SOLIDS, VALVED CONDUIT MEANS FOR CONTROLLABLY INTRODUCING FLUIDIZING TREATMENT GAS INTO THE REACTOR AT THE BOTTOM THEREOF, VALVED CONDUIT MEANS FOR CONTROLLABLY INTRODUCING COMBUSTION SUPPORTING GAS INTO THE REACTOR IN ORDER TO SUPPORT CUMBUSTION IN THE INTERMEDIATE ZONE, VALVED CONDUIT MEANS FOR INTRODUCING FUEL TO THE REACTOR DURING INITIAL HEATING CONDUIT MEANS FOR DISCHARGING GASES FROM THE REACTOR, CONDUIT MEANS FOR OVERFLOWING SOLIDS
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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |