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US3260227A
Expired / Lapsed
US
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System for drying and burning wet coal
Assignee: Foster Wheeler Inc
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Filing: 1964-08-24
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Granted: 1966-07-12
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Daman
- 👤 Jr Gilbert C Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:22
CPC Classifications
F; F23; F23C; F23C99/00; F23B; F23B1/00; F23K; F23K1/00; F23K1/04; F23B2700/00; F23B2700/012; F23C2700/00; F23C2700/06; F23C2700/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A SYSTEM FOR DRYING A SLURRY OF COAL AND WATER WITH FURNACE COMBUSTION GASES COMPRISING, CONDUIT WALLS DEFINING A GAS CONDUIT HAVING A CONDUIT INLET END ADAPTED TO RECEIVE COMBUSTION GASES AND A CONDUIT OUTLET END, A COAL BURNER IN COMMUNICATION WITH THE CONDUIT OUTLET END, A FAN DISPOSED IN THE CONDUIT AT A POSITION REMOTE FROM THE CONDUIT INLET END, THE FAN ESTABLISHING A FAN SUCTION REGION ADJACENT THE FAN EXTENDING UPSTREAM THEREOF FOR DRAWING HOT COMBUSTION GASES THROUGH THE CONDUIT, ATOMIZER MEANS FOR SUPPLYING A SLURRY UNDER PRESSURE INTO THE CONDUIT FOR MIXTURE WITH THE COMBUSTION GASES, SAID ATOMIZER MEANS INCLUDING AN ATOMIZER DISPOSED IN THE CONDUIT IN THE FAN SUCTION REGION AND ORIENTED TO DIRECT THE SLURRY INTO THE CONDUIT IN A DIRECTION OPPOSITE TO THE FLOW OF THE COMBUSTION GASES THROUGH THE CONDUIT, BAFFLE MEANS DISPOSED IN THE CONDUIT BETWEEN SAID ATOMIZER AND SAID FAN IMMEDIATELY ADJACENT THE FAN FOR CAUSING THE MIXTURE TO FLOW THROUGH A TORTUOUS PATH ADJACENT THERETO, A COOLING CHANNEL COMMUNICATING WITH THE GAS CONDUIT UPSTREAM OF SAID BAFFLE MEANS ADJACENT THE ATOMIZER FOR ATTEMPERATING THE COMBUSTION GASES, A VALVE LOCATED WITHIN SAID COOLING CHANNEL TO CONTROL THE DEGREE OF ATTEMPERATION.
Claim 2
Independent Claim
199 words
A SYSTEM FOR DRYING A SLURRY OF COAL AND WATER WITH FURNACE COMBUSTION GASES COMPRISING, CONDUIT WALLS DEFINING A GAS CONDUIT HAVING A CONDUIT INLET END ADAPTED TO RECEIVE COMBUSTION GASES AND A CONDUIT OUTLET END, A COAL BURNER IN COMMUNICATION WITH THE CONDUIT OUTLET END, A FAN DISPOSED IN THE CONDUIT AT A POSITION REMOTE FROM THE CONDUIT INLET END, THE FAN ESTABLISHING A FAN SUCTION REGION ADJACENT THE FAN EXTENDING UPSTREAM THEREOF FOR DRAWING HOT COMBUSTION GASES THROUGH THE CONDUIT, ATOMIZER MEANS FOR SUPPLYING A SLURRY UNDER PRESSURE INTO THE CONDUIT FOR MIXTURE WITH THE COMBUSTION GASES, SAID ATOMIZER MEANS INCLUDING AN ATOMIZER DISPOSED IN THE CONDUIT IN THE FAN SUCTION REGION AND ORIENTED TO DIRECT THE SLURRY INTO THE CONDUIT IN A DIRECTION OPPOSITE TO THE FLOW OF THE COMBUSTION GASES THROUGH THE CONDUIT, BAFFLE MEANS DISPOSED IN THE CONDUIT BETWEEN SAID ATOMIZER AND SAID FAN IMMEDIATELY ADJACENT THE FAN FOR CAUSING THE MIXTURE TO FLOW THROUGH A TORTUOUS PATH ADJACENT THERETO, A COOLING CHANNEL COMMUNICATING WITH THE GAS CONDUIT UPSTREAM OF SAID BAFFLE MEANS ADJACENT THE ATOMIZER FOR ATTEMPERATING THE COMBUSTION GASES, A VALVE LOCATED WITHIN SAID COOLING CHANNEL TO CONTROL THE DEGREE OF ATTEMPERATION.
References Cited (Backward Citations)
US3124086A
Cited
US2148447A
Cited
US2535730A
Cited
US2648950A
Cited
US3053615A
Cited
US3043525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |