US2511088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for pelleting carbon black
Assignee: Texaco Inc
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Filing: 1948-01-16
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Granted: 1950-06-13
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Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas H Whaley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:55
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J2/00; B01J2/16; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S425/00; Y10S425/019; Y10S425/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR PELLETING CARBON BLACK WHICH COMPRISES FEEDING POWDERED CARBON BLACK INTO A BED OF CARBON BLACK CONTAINING AGGLOMERATE PARTICLES AND MAINTAINED IN A FLUIDIZED CONDITION BY PASSAGE OF A GAS CHEMICALLY INERT WITH RESPECT TO SAID CARBON BLACK UPWARDLY THERETHROUGH AT A RATE SUFFICIENT TO IMPART MOTION TO THE PARTICLES OF CARBON BLACK IN THE BED WHEREBY AGGLOMERATE PELLETS ARE FORMED, AND RECOVERING THE RESULTING PELLETS.
Claim 2
Dependent Claim
68 words
A PROCESS FOR PELLETING CARBON BLACK WHICH COMPRISES FEEDING POWDERED CARBON BLACK INTO A BED OF CARBON BLACK CONTAINING AGGLOMERATE PARTICLES AND MAINTAINED IN A FLUIDIZED CONDITION BY PASSAGE OF A GAS CHEMICALLY INERT WITH RESPECT TO SAID CARBON BLACK UPWARDLY THERETHROUGH AT A RATE SUFFICIENT TO IMPART MOTION TO THE PARTICLES OF CARBON BLACK IN THE BED WHEREBY AGGLOMERATE PELLETS ARE FORMED, AND RECOVERING THE RESULTING 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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |