Patent US3602504A successfully refreshed from Google Patents.
Patent US3124086A successfully refreshed from Google Patents.
US3124086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry firex cyclone furnace
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:08
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006; F23C3/008; F23D; F23D1/00; F23D1/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
THE PROCESS OF BURNING PARTICLE-FORM COAL WHICH COMPRISES INTRODUCING WHIRLING STREAMS OF AIR INTO A COMBUSTION CHAMBER OF CIRCULAR CROSS-SECTION SO AS TO MOVE AT A HIGH VELOCITY ALONG THE CIRCUMFERENTIAL WALL THEREOF, INTRODUCING A STREAM OF SLURRY COMPRISING PARTICLE-FORM COAL IN AN AQUEOUS SUSPENSION INTO SAID COMBUSTION CHAMBER SO AS TO MOVE TOWARDS THE CIRCUMFERENTIAL WALL OF THE CHAMBER AND TO MIX AND WHIRL WITH SAID AIR STREAMS, WHILE MAINTAINING A NORMAL MEAN TEMPERATURE IN THE CHAMBER ABOVE THE COAL ASH FUSION TEMPERATURE, PASSING THE SLURRY AND AIR SO INTRODUCED AXIALLY OF THE COMBUSTION CHAMBER THROUGH A HELICAL PATH ALONG THE CIRCUMFERENTIAL WALL OF
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |