US3301639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the manufacture of carbon black
Assignee: Columbian Carbon Co
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Filing: 1963-03-20
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Granted: 1967-01-31
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Land Charles L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:39
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/22; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN THE PROCESS FOR PRODUCING CARBON BLACK IN A CYLINDRICAL FURNACE CHAMBER BY THE THERMAL DECOMPOSITION OF HYDROCARBONS BY HEAT ABSORBED FROM A ROTATING BODY OF HOT COMBUSTION GASES PASSING THROUGH SAID CYLINDRICAL FURNACE CHAMBER, THE METHOD OF INDUCING THE ROTATIONAL MOTION OF SAID HOT GASES WHICH COMPRISES INTRODUCING INTO ONE END OF THE FURNACE CHAMBER A SPIRALING STREAM OF GASES ALONG A PATH THE AXIS OF WHICH IS DIRECTED TO INTERSECT THE LINGITUDINAL AXIS OF THE FURNACE CHAMBER AND SO POSITIONING THE FLIGHT AND DIRECTION OF THE GAS SPIRAL AS IT ENTERS THE FURNACE CHAMBER THAT THE MOMENTAL DIRECTION OF A PREDOMINANT SEGMENT OF THE ENTERING GASES IS SUBSTANTIALLY TO ONE SIDE OF THE FURNACE AXIS, THEREBY CAUSING THE HOT GASES WITHIN THE FURNACE CHAMBER TO ROTATE ABOUT SAID AXIS.
Claim 2
Dependent Claim
131 words
IN THE PROCESS FOR PRODUCING CARBON BLACK IN A CYLINDRICAL FURNACE CHAMBER BY THE THERMAL DECOMPOSITION OF HYDROCARBONS BY HEAT ABSORBED FROM A ROTATING BODY OF HOT COMBUSTION GASES PASSING THROUGH SAID CYLINDRICAL FURNACE CHAMBER, THE METHOD OF INDUCING THE ROTATIONAL MOTION OF SAID HOT GASES WHICH COMPRISES INTRODUCING INTO ONE END OF THE FURNACE CHAMBER A SPIRALING STREAM OF GASES ALONG A PATH THE AXIS OF WHICH IS DIRECTED TO INTERSECT THE LINGITUDINAL AXIS OF THE FURNACE CHAMBER AND SO POSITIONING THE FLIGHT AND DIRECTION OF THE GAS SPIRAL AS IT ENTERS THE FURNACE CHAMBER THAT THE MOMENTAL DIRECTION OF A PREDOMINANT SEGMENT OF THE ENTERING GASES IS SUBSTANTIALLY TO ONE SIDE OF THE FURNACE AXIS, THEREBY CAUSING THE HOT GASES WITHIN THE FURNACE CHAMBER TO ROTATE ABOUT SAID AXIS.
References Cited (Backward Citations)
US3003855A
Cited
US3116114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |