Patent US2964392A successfully refreshed from Google Patents.
US2964392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of carbon black characteristics
Assignee: Phillips Petroleum Co
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Filing: 1957-11-12
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Granted: 1960-12-13
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 John A Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:25
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60; C01; C01P; C01P2006/00; C01P2006/80; C01P2006/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A PROCESS WHEREIN AN AQUEOUS LIQUID IS SPRAYED ONTO A RESTRICTED TRANSVERSE SECTION OF A HOT BED OF CARBON BLACK PELLETS AT A RATE IN THE RANGE OF ABOUT 4 TO 26 POUNDS OF LIQUID PER 100 POUNDS OF CARBON BLACK IN AN ELONGATED TUMBLING DRUM ROTATING ON A GENERALLY HORIZONTAL AXIS IN WHICH THE PELLETS MOVE GRADUALLY FROM THE HEAD TO THE FOOT OF SAID DRUM: THE METHOD OF VARYING THE PHOTELOMETER OF SAID BLACK COMPRISING MOVING THE POINT OF INJECTION OF SAID LIQUID LONGITUDINALLY IN SAID DRUM SO AS TO VARY THE LOCAL OF SAID RESTRICTED SECTION ALONG THE LENGTH OF SAID BED AND VARY THE PHOTELOMETER OF SAID BLACK.
Claim 2
Dependent Claim
113 words
IN A PROCESS WHEREIN AN AQUEOUS LIQUID IS SPRAYED ONTO A RESTRICTED TRANSVERSE SECTION OF A HOT BED OF CARBON BLACK PELLETS AT A RATE IN THE RANGE OF ABOUT 4 TO 26 POUNDS OF LIQUID PER 100 POUNDS OF CARBON BLACK IN AN ELONGATED TUMBLING DRUM ROTATING ON A GENERALLY HORIZONTAL AXIS IN WHICH THE PELLETS MOVE GRADUALLY FROM THE HEAD TO THE FOOT OF SAID DRUM: THE METHOD OF VARYING THE PHOTELOMETER OF SAID BLACK COMPRISING MOVING THE POINT OF INJECTION OF SAID LIQUID LONGITUDINALLY IN SAID DRUM SO AS TO VARY THE LOCAL OF SAID RESTRICTED SECTION ALONG THE LENGTH OF SAID BED AND VARY THE PHOTELOMETER OF SAID BLACK.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |