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US3674437A
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Carbon black pellet mixer with sectional helical-pin mixer
Assignee: Phillips Petroleum Co
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Filing: 1970-07-14
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Granted: 1972-07-04
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Expires: 1990-07-14
Abstract
Abstract AGITATING PINS OF A CARBON BLACK PELLET MIXER ARE AFFIXED IN A HELICAL PATTERN ON LONGITUDINALLY DIVIDED SECTIONAL HOLDERS, TWO SECTIONS OF WHICH HOLDERS FORMING AT LEAST ONE HALF OF A COMPLETE HELIX WHEN INSTALLED IN OPPOSITION TO EACH OTHER ONTO AND AROUND THE DRIVE SHAFT OF THE PELLET MIXER. SUCH SECTIONAL HOLDERS ARE QUICKLY REPLACEABLE SO AS TO MINIMIZE MIXER DOWNTIME DUE TO PIN WEAR AND NECESSARY REPLACEMENT.
Inventors
- 👤 Oliver K Austin
- 👤 Bruno F Loewen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:14
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/072; B01F27/0722; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |