US2553199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of carbon black
Assignee: Godfrey L Cabot Inc
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Filing: 1947-10-29
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Granted: 1951-05-15
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 William L Loving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:10
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; Y; Y10; Y10S; Y10S239/00; Y10S239/21
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
173 words
THE PROCESS OF MAKING FURNACE CARBON BLACK, WHICH INCLUDES THE STEPS OF ADMITTING A RELATIVELY LARGE BODY OF AIR, DIVIDED INTO SEVERAL SEPARATED PARALLEL SHEETS OF AIR, INTO AN ELONGATED UNRESTRICTED COMBUSTION SPACE, INJECTING INTO THE COMBUSTION SPACE A MULTIPLICITY OF SMALL JETS OF CARBON-CONTAINING GAS ARRANGED IN ROWS BETWEEN ADJACENT AIR SHEETS, FLOWING THE JETS OF GAS IN THE SAME GENERAL DIRECTION AS THE AIR SHEETS AND PASSING DIRECTLY AND IN A WELL DISTRIBUTED MANNER INTO THE AIR AT SUCH HIGHER VELOCITY THAN THAT OF THE AIR AS TO ESTABLISH AN IMMEDIATE AND LOCALIZED TURBULENT MIXTURE OF AIR AND GAS ABOUT THE JETS UNDER CONDITIONS OF INCOMPLETE COMBUSTION, THEREBY DECOMPOSING THE UNCONSUMED GAS WHILE IN FREE SPACE, INJECTING INTO SAID MIXTURE IN A SUBSTANTIALLY CENTRAL POSITION WITH RESPECT TO THE PATTERN OF GAS JETS A FINE SPRAY OF HYDROCARBON OIL WHICH HAS BEEN ATOMIZED BY GAS IN A DIVERGING CONICAL BODY WHICH IS IMMEDIATELY SURROUNDED BY A BURNING TURBULENT AIR-GAS MIXTURE, AND COLLECTING THE UNBURNED CARBON PARTICLE 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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |