US2652313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of furnace carbon black
Assignee: Godfrey L Cabot Inc
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Filing: 1951-04-03
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Granted: 1953-09-15
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Expires: 1971-04-03
Abstract
No abstract record available.
Inventors
- 👤 William L Loving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:14
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE PROCESS OF MAKING FURNACE CARBON BLACK, WHICH INCLUDES THE STEPS OF ADMITTING A PLURALITY OF ALTERNATE CONTINUOUS RELATIVELY THIN VERTICALLY EXTENDING PARALLEL LAYERS OF AIR AND GAS IN STREAMLINE NON-TURBULENT FLOW UNDER CONDITIONS OF INCOMPLETE COMBUSTION INTO A SINGLE ELONGATED UNOBSTRUCTED COMBUSTION SPACE, THEREBY CAUSING BURNING TO TAKE PLACE AT THE INTERFACES OF THE AIR AND GAS LAYERS WITH DECOMPOSITION OF THE UNCONSUMED GAS WHILE IN FREE SPACE, INJECTING INTO THE COMBUSTION SPACE IN A SUBSTANTIALLY CENTRAL POSITION WITH RESPECT TO THE PATTERN OF THE AIR AND GAS LAYERS A FINE SPRAY OF HYDROCARBON OIL WHICH HAS BEEN ATOMIZED BY GAS IN A DIVERGENT CONICAL BODY AND WHICH IS IMMEDIATELY SURROUNDED BY BURNING NON-TURBULENT AIRGAS STREAMS, AND COLLECTING THE UNCONSUMED CARBON PARTICLES FROM THE PRODUCTS OF COMBUSTION.
Claim 2
Dependent Claim
128 words
THE PROCESS OF MAKING FURNACE CARBON BLACK, WHICH INCLUDES THE STEPS OF ADMITTING A PLURALITY OF ALTERNATE CONTINUOUS RELATIVELY THIN VERTICALLY EXTENDING PARALLEL LAYERS OF AIR AND GAS IN STREAMLINE NON-TURBULENT FLOW UNDER CONDITIONS OF INCOMPLETE COMBUSTION INTO A SINGLE ELONGATED UNOBSTRUCTED COMBUSTION SPACE, THEREBY CAUSING BURNING TO TAKE PLACE AT THE INTERFACES OF THE AIR AND GAS LAYERS WITH DECOMPOSITION OF THE UNCONSUMED GAS WHILE IN FREE SPACE, INJECTING INTO THE COMBUSTION SPACE IN A SUBSTANTIALLY CENTRAL POSITION WITH RESPECT TO THE PATTERN OF THE AIR AND GAS LAYERS A FINE SPRAY OF HYDROCARBON OIL WHICH HAS BEEN ATOMIZED BY GAS IN A DIVERGENT CONICAL BODY AND WHICH IS IMMEDIATELY SURROUNDED BY BURNING NON-TURBULENT AIRGAS STREAMS, AND COLLECTING THE UNCONSUMED CARBON PARTICLES FROM THE PRODUCTS OF COMBUSTION.
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |