Patent US2618535A successfully refreshed from Google Patents.
US2618535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating hydrocarbon oils
Assignee: Shell Development Co
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Filing: 1951-09-13
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Granted: 1952-11-18
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Expires: 1971-09-13
Abstract
No abstract record available.
Inventors
- 👤 Richard P Trainer
- 👤 Lawson E Border
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:52
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
AN APPARATUS FOR CONTINUOUSLY REMOVING COMBUSTIBLE DEPOSITS FROM FINELY DIVIDED SOLIDS WHICH COMMPRISES IN COMBINATION A VERTICALLY DISPOSED CYLINDRICAL VESSEL SWAGED TO A LARGER DIAMETER NEAR THE TOP AND PROVIDED WITH TOP AND BOTTOM CLOSURES, A VERTICAL PARTITION DIVIDING THE HORIZONTAL CROSS-SECTION OF SAID VESSEL INTO A SMALLER STRIPPING AREA AND A SEPARATE LARGER BURNING AREA, SAID PARTITION EXTENDING FROM A POINT SHORT OF THE TOP AND AT ABOUT THE SWAGE LINE TO A POINT NEAR BUT SHORT OF THE BOTTOM CLOSURE, A SECOND PARTITION EXTENDING FROM THE SAID FIRST PARTITION TO THE WALL OF THE VESSEL AND CUTTING THE SAID SMALLER STRIPPING AREA INTO SEPARATE UPPER AND LOWER STRIPPING ZONES RESPECTIVELY, VERTICAL BAFFIES IN THE LOWER PART OF EACH OF SAID UPPER AND LOWER STRIPPING ZONES, SAID VERTICAL BAFFLES DIVIDING THE SAID ZONES INTO LONG NARROW PASSAGES, A MIXING PAN IN SAID LOWER STRIPPING ZONE ABOVE THE SAID VERTICAL BAFFLES THEREIN, A CONDUIT MEANS WITH CONTROL VALVE ARRANGED TO PASS A CONTROLLED AMOUNT OF POWDER FROM THE SAID UPPER STRIPPING ZONE INTO SAID MIXING PAN, A CONDUIT MEANS FOR WITHDRAWING POWDER FROM THE LOWER PART OF SAID UPPER STRIPPING ZONES, A CONDUIT ENTERING THROUGH THE WALL OF THE VESSEL AND ARRANGED TO INTRODUCE CONTAMINATED POWDER INTO SAID MIIXING PAN, MEANS FOR INJECTING STRIPPING
Claim 2
Independent Claim
214 words
AN APPARATUS FOR CONTINUOUSLY REMOVING COMBUSTIBLE DEPOSITS FROM FINELY DIVIDED SOLIDS WHICH COMMPRISES IN COMBINATION A VERTICALLY DISPOSED CYLINDRICAL VESSEL SWAGED TO A LARGER DIAMETER NEAR THE TOP AND PROVIDED WITH TOP AND BOTTOM CLOSURES, A VERTICAL PARTITION DIVIDING THE HORIZONTAL CROSS-SECTION OF SAID VESSEL INTO A SMALLER STRIPPING AREA AND A SEPARATE LARGER BURNING AREA, SAID PARTITION EXTENDING FROM A POINT SHORT OF THE TOP AND AT ABOUT THE SWAGE LINE TO A POINT NEAR BUT SHORT OF THE BOTTOM CLOSURE, A SECOND PARTITION EXTENDING FROM THE SAID FIRST PARTITION TO THE WALL OF THE VESSEL AND CUTTING THE SAID SMALLER STRIPPING AREA INTO SEPARATE UPPER AND LOWER STRIPPING ZONES RESPECTIVELY, VERTICAL BAFFIES IN THE LOWER PART OF EACH OF SAID UPPER AND LOWER STRIPPING ZONES, SAID VERTICAL BAFFLES DIVIDING THE SAID ZONES INTO LONG NARROW PASSAGES, A MIXING PAN IN SAID LOWER STRIPPING ZONE ABOVE THE SAID VERTICAL BAFFLES THEREIN, A CONDUIT MEANS WITH CONTROL VALVE ARRANGED TO PASS A CONTROLLED AMOUNT OF POWDER FROM THE SAID UPPER STRIPPING ZONE INTO SAID MIXING PAN, A CONDUIT MEANS FOR WITHDRAWING POWDER FROM THE LOWER PART OF SAID UPPER STRIPPING ZONES, A CONDUIT ENTERING THROUGH THE WALL OF THE VESSEL AND ARRANGED TO INTRODUCE CONTAMINATED POWDER INTO SAID MIIXING PAN, MEANS FOR INJECTING STRIPPING
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |