US3300199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the heat treatment of finely divided materials
Assignee: FLSmidth and Co AS
•
Filing: 1964-05-01
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Granted: 1967-01-24
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Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Andersen Axel Brix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:56
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/08; F; F27; F27B; F27B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
AN APPARATUS FOR THE HEAT TREATMENT OF FINELY DIVIDED MATERIAL WHICH COMPRISES A GENERALLY CYLINDRICAL SHELL MOUNTED FOR ROTATION ON ITS LONGITUDINAL AXIS WITH THAT AXIS SUBSTANTIALLY HORIZONTAL, MEANS FOR ROTATING THE SHELL, MEANS AT ONE END OF THE SHELL DEFINING A FEED CHAMBER FOR THE INTRODUCTION OF RAW MATERIAL AND THE DISCHARGE OF COMBUSION GAS AND A DISCHARGE CHAMBER FOR TREATED MATERIAL, THE CHAMBERS BEING TELESCOPED AND COAXIAL, MEANS AT THE OTHER END OF THE SHELL DEFINING A COMBUSTION CHAMBER, A PLURALITY OF PREHEATER CHAMBERS MOUNTED ON THE OUTSIDE OF THE SHELL IN PLANETARY ARRANGEMENT BETWEEN THE TELESCOPED CHAMBERS AND THE COMBUSTION CHAMBER, CONNECTIONS THROUGH THE SHELL WALL BETWEEN THE FEED AND DISCHARGE CHAMBERS AND EACH PREHEATER CHAMBER AT ONE END OF THE LATTER FOR THE TRAVEL OF RAW MATERIAL TO AND COMBUSTION GAS FROM THE PREHEATER CHAMBER AND FOR THE TRAVEL OF TREATED MATERIAL FROM THE PREHEATER CHAMBER, RESPECTIVELY, CONNECTIONS THROUGH THE SHELL WALL BETWEEN THE COMBUSTION CHAMBER AND EACH PREHEATER CHAMBER AT THE OTHER END OF THE LATTER FOR THE TRAVEL OF RAW MATERIAL TO AND COMBUSTION GAS FROM THE COMBUSTION CHAMBER AND FOR THE TRAVEL OF TREATED MATERIAL FROM THE COMBUSTION CHAMBER, RESPECTIVELY, MEANS IN EACH PREHEATER CHAMBER DEFINING PASSAGES FOR THE COUNTERCURENT TRAVEL OF THE RAW MATERIAL AND GAS, THE TREATED MATERIAL TRAVELING
Claim 2
Independent Claim
218 words
AN APPARATUS FOR THE HEAT TREATMENT OF FINELY DIVIDED MATERIAL WHICH COMPRISES A GENERALLY CYLINDRICAL SHELL MOUNTED FOR ROTATION ON ITS LONGITUDINAL AXIS WITH THAT AXIS SUBSTANTIALLY HORIZONTAL, MEANS FOR ROTATING THE SHELL, MEANS AT ONE END OF THE SHELL DEFINING A FEED CHAMBER FOR THE INTRODUCTION OF RAW MATERIAL AND THE DISCHARGE OF COMBUSION GAS AND A DISCHARGE CHAMBER FOR TREATED MATERIAL, THE CHAMBERS BEING TELESCOPED AND COAXIAL, MEANS AT THE OTHER END OF THE SHELL DEFINING A COMBUSTION CHAMBER, A PLURALITY OF PREHEATER CHAMBERS MOUNTED ON THE OUTSIDE OF THE SHELL IN PLANETARY ARRANGEMENT BETWEEN THE TELESCOPED CHAMBERS AND THE COMBUSTION CHAMBER, CONNECTIONS THROUGH THE SHELL WALL BETWEEN THE FEED AND DISCHARGE CHAMBERS AND EACH PREHEATER CHAMBER AT ONE END OF THE LATTER FOR THE TRAVEL OF RAW MATERIAL TO AND COMBUSTION GAS FROM THE PREHEATER CHAMBER AND FOR THE TRAVEL OF TREATED MATERIAL FROM THE PREHEATER CHAMBER, RESPECTIVELY, CONNECTIONS THROUGH THE SHELL WALL BETWEEN THE COMBUSTION CHAMBER AND EACH PREHEATER CHAMBER AT THE OTHER END OF THE LATTER FOR THE TRAVEL OF RAW MATERIAL TO AND COMBUSTION GAS FROM THE COMBUSTION CHAMBER AND FOR THE TRAVEL OF TREATED MATERIAL FROM THE COMBUSTION CHAMBER, RESPECTIVELY, MEANS IN EACH PREHEATER CHAMBER DEFINING PASSAGES FOR THE COUNTERCURENT TRAVEL OF THE RAW MATERIAL AND GAS, THE TREATED MATERIAL TRAVELING
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |