US3236565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dustless pneumatic conveyor and process
Assignee: Phillips Petroleum Co
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Filing: 1963-12-31
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Granted: 1966-02-22
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Harry F Kester
- 👤 Paul R Woollett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:15
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/18; B65G69/185; B65G69/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A CONVEYING SYSTEM FOR FINELY DIVIDED SOLIDS COMPRISING IN COMBINATION, A HOPPER HAVING AN INLET AND AN OUTLET AND A SCREEN WITH MUCH LARGER OPENINGS THAN THE AVERAGE SIZE OF SAID SOLIDS DISPOSED TO REGULATE PASSAGE BETWEEN SAID INLET AND OUTLWT, A CYCLONE SEPARATOR HAVING A GENERALLY CYLINDRICAL CHAMBER HAVING A TANGENTIAL INLET, AN AXIAL LOWER OUTLET, A VALVE DISPOSED TO CONTROL FLOW THROUGH SAID LOWER OUTLET, AND AN AXIAL UPPER OUTLET, A BAG FILTER HAVING A FIRST AND SECOND CHAMBER SEPARATED BY A FILTER WITH AT LEAST SMALLER OPENINGS THAN THE AVERAGE SIZE OF SAID FINELY DIVIDED SOLIDS, AN INLET AND AN OUTLET TO SAID FIRST CHAMBER, SAID AN OUTLET TO SAID SECOND CHAMBER, A VALVE IN SAID OUTLET TO SAID FIRST CHAMBER DISPOSED TO CONTROL FLOW THERETHROUGH, A STORAGE TANK HAVING A LOWER OUTLER AND A VALVE IN SAID LAST LOWER OUTLET DISPOSED TO CONTROL FLOW THERETHROUGH, A FIRST CONDUIT CONNECTING THE
Claim 2
Dependent Claim
154 words
A CONVEYING SYSTEM FOR FINELY DIVIDED SOLIDS COMPRISING IN COMBINATION, A HOPPER HAVING AN INLET AND AN OUTLET AND A SCREEN WITH MUCH LARGER OPENINGS THAN THE AVERAGE SIZE OF SAID SOLIDS DISPOSED TO REGULATE PASSAGE BETWEEN SAID INLET AND OUTLWT, A CYCLONE SEPARATOR HAVING A GENERALLY CYLINDRICAL CHAMBER HAVING A TANGENTIAL INLET, AN AXIAL LOWER OUTLET, A VALVE DISPOSED TO CONTROL FLOW THROUGH SAID LOWER OUTLET, AND AN AXIAL UPPER OUTLET, A BAG FILTER HAVING A FIRST AND SECOND CHAMBER SEPARATED BY A FILTER WITH AT LEAST SMALLER OPENINGS THAN THE AVERAGE SIZE OF SAID FINELY DIVIDED SOLIDS, AN INLET AND AN OUTLET TO SAID FIRST CHAMBER, SAID AN OUTLET TO SAID SECOND CHAMBER, A VALVE IN SAID OUTLET TO SAID FIRST CHAMBER DISPOSED TO CONTROL FLOW THERETHROUGH, A STORAGE TANK HAVING A LOWER OUTLER AND A VALVE IN SAID LAST LOWER OUTLET DISPOSED TO CONTROL FLOW THERETHROUGH, A FIRST CONDUIT CONNECTING THE
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |