US3249263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate material feeding
Assignee: Phillips Petroleum Co
•
Filing: 1963-07-25
•
Granted: 1966-05-03
•
Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Allen C Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:57
CPC Classifications
B; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1641; B65G2812/1658; B65G2812/1666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
MEANS FOR FEEDING LOOSE CARBON BLACK FROM A STORAGE BIN TO A PELLET MILL, COMPRISING: A STAR TYPE FEEDING WHEEL ROTATABLE AROUND A HORIZONTAL AXIS AND CONNECTED WITH A LOWER PORTION OF SAID BIN; A FLUID CONDIUT COMMUNICATING DIRECTLY WITH AN UPPER PORTION OF SAID FEEDING WHEEL ABOVE SAID AXIS AND BELOW THE TOP OF SAID WHEEL; A SOURCE OF GAS UNDER PRESSURE; VALVE MEANS TO CONNECT SAID SOURCE WITH SAID FLUID CONDUIT; AND TIMER MEANS TO ACTIVATE SAID VALVE MEANS TO SUPPLY SAID GAS TO SAID FEEDING WHEEL AT REGULAR INTERVALS.
Claim 2
Dependent Claim
92 words
MEANS FOR FEEDING LOOSE CARBON BLACK FROM A STORAGE BIN TO A PELLET MILL, COMPRISING: A STAR TYPE FEEDING WHEEL ROTATABLE AROUND A HORIZONTAL AXIS AND CONNECTED WITH A LOWER PORTION OF SAID BIN; A FLUID CONDIUT COMMUNICATING DIRECTLY WITH AN UPPER PORTION OF SAID FEEDING WHEEL ABOVE SAID AXIS AND BELOW THE TOP OF SAID WHEEL; A SOURCE OF GAS UNDER PRESSURE; VALVE MEANS TO CONNECT SAID SOURCE WITH SAID FLUID CONDUIT; AND TIMER MEANS TO ACTIVATE SAID VALVE MEANS TO SUPPLY SAID GAS TO SAID FEEDING WHEEL AT REGULAR INTERVALS.
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |