US2750182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flash heating of pulverulent material
Assignee: FLSmidth and Co AS
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Filing: 1953-02-20
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Granted: 1956-06-12
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Expires: 1973-02-20
Abstract
No abstract record available.
Inventors
- 👤 Petersen Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:11
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27D; F27D13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN AN APPARATUS FOR HEATING PULVERULENT MATERIAL TO BE BURNED IN AN INCLINED ROTARY KILN BY WASTE GASES FROM THE KILN, THE COMBINATION OF AN END SECTION MOUNTED COAXIALLY WITH THE KILN AT ITS UPPER END AND CONTAINING LIFTERS, A GAS DUCT LEADING FROM THE END SECTION, A SEPARATOR HAVING AN INLET AND SEPARATE OUTLETS FOR GASES AND SOLIDS, THE DUCT LEADING TO THE INLET OF THE SEPARATOR, A FAN CONNECTED TO THE SEPARATOR AND CAUSING A FLOW OF GASES THROUGH THE DUCT AND SEPARATOR, MEANS FOR INTRODUCING RAW PULVERULENT MATERIAL INTO THE KILN END SECTION TO BE LIFTED BY SAID LIFTERS AND DROPPED, MEANS FOR FEEDING MATERIAL INTO THE KILN, AND MEANS FOR CONDUCTING SOLIDS FROM THE SOLIDS OUTLET OF THE SEPARATOR TO SAID FEEDING MEANS.
Claim 2
Dependent Claim
127 words
IN AN APPARATUS FOR HEATING PULVERULENT MATERIAL TO BE BURNED IN AN INCLINED ROTARY KILN BY WASTE GASES FROM THE KILN, THE COMBINATION OF AN END SECTION MOUNTED COAXIALLY WITH THE KILN AT ITS UPPER END AND CONTAINING LIFTERS, A GAS DUCT LEADING FROM THE END SECTION, A SEPARATOR HAVING AN INLET AND SEPARATE OUTLETS FOR GASES AND SOLIDS, THE DUCT LEADING TO THE INLET OF THE SEPARATOR, A FAN CONNECTED TO THE SEPARATOR AND CAUSING A FLOW OF GASES THROUGH THE DUCT AND SEPARATOR, MEANS FOR INTRODUCING RAW PULVERULENT MATERIAL INTO THE KILN END SECTION TO BE LIFTED BY SAID LIFTERS AND DROPPED, MEANS FOR FEEDING MATERIAL INTO THE KILN, AND MEANS FOR CONDUCTING SOLIDS FROM THE SOLIDS OUTLET OF THE SEPARATOR TO SAID FEEDING MEANS.
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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |