US3171369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion of carbonaceous solids
Assignee: Union Carbide Corp
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Filing: 1962-12-28
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Granted: 1965-03-02
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank M Stephens
- 👤 William M Goldberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/54; C10J3/48; C10J3/50; C10J3/503; C10J3/72; C10J3/723; C10J3/74; C10J3/76; C10J3/82; C10J3/84; F; F23; F23C; F23C10/00; F23C10/16; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/18; C10J2300/1807
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR BURNING CARBONACEOUS FUEL TO PRODUCE DUST-FREE COMBUSTION GAS WHICH PROCESS COMPRIES THE STEPS OF: (A) INTRODUCING SAID CARBONACEOUS FUEL INTO A COMBUTION ZONE, (B) BURNING SAID CARBONACEOUS FUEL WITH AIR INSTANTLY AS SAID FUEL ENTERS THE COMBUSTION ZONE, (C) MAINTAINING IN SAID COMBUSTION ZONE A BED OF FLUIDIZED ASH PARTICLES WHICH ARE PRODUCED FROM THE (D) CONTROLLING THE BED TEMPERATURE IN SAID COMBUSTION ZONE AS TO CAUSE THE ASH PARTICLES TO BECOME TACKY AND TO AGGLOMERATE, (E) WITHDRAWING ESSENTIALLY CARBON-FREE AGGLOMERATED ASH PARTICLES FROM SAID COMBUSTION ZONE, AND (F) WITHDRAWING THE DUST-FREE GAS FROM SAID COMBUSTION ZONE.
Claim 2
Dependent Claim
100 words
A PROCESS FOR BURNING CARBONACEOUS FUEL TO PRODUCE DUST-FREE COMBUSTION GAS WHICH PROCESS COMPRIES THE STEPS OF: (A) INTRODUCING SAID CARBONACEOUS FUEL INTO A COMBUTION ZONE, (B) BURNING SAID CARBONACEOUS FUEL WITH AIR INSTANTLY AS SAID FUEL ENTERS THE COMBUSTION ZONE, (C) MAINTAINING IN SAID COMBUSTION ZONE A BED OF FLUIDIZED ASH PARTICLES WHICH ARE PRODUCED FROM THE (D) CONTROLLING THE BED TEMPERATURE IN SAID COMBUSTION ZONE AS TO CAUSE THE ASH PARTICLES TO BECOME TACKY AND TO AGGLOMERATE, (E) WITHDRAWING ESSENTIALLY CARBON-FREE AGGLOMERATED ASH PARTICLES FROM SAID COMBUSTION ZONE, AND (F) WITHDRAWING THE DUST-FREE GAS FROM SAID COMBUSTION ZONE.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |