US3761360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Re entrainment charging of preheated coal into coking chambers of a coke oven battery
Assignee: Krupp Wilputte Corp
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Filing: 1971-01-20
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Granted: 1973-09-25
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Expires: 1991-01-20
Abstract
Abstract THE INVENTION HEREIN IS CONCERNED WITH A METHOD AND APPARATUS FOR CHARGING PREHEATED COAL INTO COKING CHAMBERS OF A COKE OVEN BATTERY, WHEREIN THE COAL IS PREHEATED, COARSELY COMMINUTED AND CONDUCTED VIA PIPELINE UNDER THE FORCE INDUCED BY A HIGHLY HEATED INERT GAS SUCH AS STREAM, WITH THE ASSISTANCE OF A RE-ENTRAINMENT BEND IN THE PIPELINE, ADAPTED TO EFFECT SUDDEN CHANGE IN DIRECTION OF THE FLOW OF COAL SO AS TO MOVE UPWARDLY AND INTO THE STREAM OF GAS, COAL WHICH SETTLED OUT OF THE STREAM AND ONTO THE BOTTOM, TO RE-ENTER THE SAME.
Inventors
- 👤 H Auvil
- 👤 L Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:03
CPC Classifications
C; C10; C10B; C10B31/00
Claims Analysis
Total Claims: 0
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |