Patent US3328131A successfully refreshed from Google Patents.
US3328131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for contacting carbon black pellets with bag filter efflux
Assignee: Continental Carbon Co
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Filing: 1964-11-10
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Granted: 1967-06-27
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Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Burton F Latham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:43
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50; Y; Y10; Y10S; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF PELLETIZING CARBON BLACK WHICH INCLUDES GRAVITATIONALLY AND CENTRIFUGALLY SEPARATING CARBON BLACK FROM A FURANCE EFFLUENT, WET PELLETIZING THE SEPARATED BLACK; CONVEYING THE WET PELLETS TO A DRYER COLLECTOR; GRAVITATIONALLY MOVING THE PELETS THROUGH SAID COLLECTOR; COUNTER-CURRENTLY PASSING HEATED GASEOUS EFFLUX FROM THE CENTRIFUGAL SEPARATION THROUGH SAID COLLECTOR AND PELLETS ADHERING THE CARBON BLACK OF SAID EFFLUX TO THE WET PELELTS AND DRYING THE PELLETS.
Claim 2
Independent Claim
67 words
THE METHOD OF PELLETIZING CARBON BLACK WHICH INCLUDES GRAVITATIONALLY AND CENTRIFUGALLY SEPARATING CARBON BLACK FROM A FURANCE EFFLUENT, WET PELLETIZING THE SEPARATED BLACK; CONVEYING THE WET PELLETS TO A DRYER COLLECTOR; GRAVITATIONALLY MOVING THE PELETS THROUGH SAID COLLECTOR; COUNTER-CURRENTLY PASSING HEATED GASEOUS EFFLUX FROM THE CENTRIFUGAL SEPARATION THROUGH SAID COLLECTOR AND PELLETS ADHERING THE CARBON BLACK OF SAID EFFLUX TO THE WET PELELTS AND DRYING THE PELLETS.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |