Patent US3293003A successfully refreshed from Google Patents.
US3293003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling water and carbon black feed responsive to weight of feed to pelletizer
Assignee: Cabot Corp
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Filing: 1963-06-03
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Granted: 1966-12-20
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis C Jones
- 👤 Dennis W Stafford
- 👤 James W Edminster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:26
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; G; G05; G05D; G05D11/00; G05D11/02; G05D11/03; C01; C01P; C01P2004/00; C01P2004/50; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR WET PELLETIZING CARBON BLACKS WHEREIN THE INGREDIENTS COMPRISING CARBON BLACK AND A LIQUID ARE AGITATED IN A PELLETIZER AFTER BEING SEPARATELY INTRODUCED THERETO COMPRISING THE STEPS OF: (A) CONVEYING FINELY DIVIDED CARBON BLACK AT APPROXIMATELY THE RATE DESIRED BY MEANS OF A LARGELY VOLUMETRICALLY CONTROLLED SOLIDS FEEDER TO A CONTAINUOUS WEIGHT DETERMINING ZONE PRIOR TO INTRODUCING SAID BLACK TO SAID PELLETIZER, (B) CONTAINOUSLY DETERMINING THE WEIGHT OF THE CARBONBLACK DELIVERED TO SAID ZONE, (C9 CONTINUOUSLY TRANSMITTING THE SAID SIGNAL TO A CONDETERMINED TO A SIGNAL, AND (D) CONTINUOUSLY TRANSMITTING THE SAID SIGNAL TO A CONTROL DEVICE WHICH RESPONDS TO SAID SIGNAL TO ADJUST THE RATE AT WHICH THE BLACK IS CONVEYED TO THE WEIGHT DETERMINING ZONE AND THE RATE AT WHICH THE WATER IS INTRODUCED TO SAID PELLETIZER TO CONTERAT CHANGES
Claim 2
Dependent Claim
134 words
A PROCESS FOR WET PELLETIZING CARBON BLACKS WHEREIN THE INGREDIENTS COMPRISING CARBON BLACK AND A LIQUID ARE AGITATED IN A PELLETIZER AFTER BEING SEPARATELY INTRODUCED THERETO COMPRISING THE STEPS OF: (A) CONVEYING FINELY DIVIDED CARBON BLACK AT APPROXIMATELY THE RATE DESIRED BY MEANS OF A LARGELY VOLUMETRICALLY CONTROLLED SOLIDS FEEDER TO A CONTAINUOUS WEIGHT DETERMINING ZONE PRIOR TO INTRODUCING SAID BLACK TO SAID PELLETIZER, (B) CONTAINOUSLY DETERMINING THE WEIGHT OF THE CARBONBLACK DELIVERED TO SAID ZONE, (C9 CONTINUOUSLY TRANSMITTING THE SAID SIGNAL TO A CONDETERMINED TO A SIGNAL, AND (D) CONTINUOUSLY TRANSMITTING THE SAID SIGNAL TO A CONTROL DEVICE WHICH RESPONDS TO SAID SIGNAL TO ADJUST THE RATE AT WHICH THE BLACK IS CONVEYED TO THE WEIGHT DETERMINING ZONE AND THE RATE AT WHICH THE WATER IS INTRODUCED TO SAID PELLETIZER TO CONTERAT CHANGES
References Cited (Backward Citations)
US2206237A
Cited
US2626728A
Cited
US2889030A
Cited
US2800399A
Cited
GB845041A
Cited
US2888026A
Cited
US3056162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |