Patent US4723164A successfully refreshed from Google Patents.
Patent US2985517A successfully refreshed from Google Patents.
US2985517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for contacting and conveying of fluidized solids and fluids to be contacted therewith
Assignee: Phillips Petroleum Co
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Filing: 1957-03-14
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Granted: 1961-05-23
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:16
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1836; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00061; B01J2208/00088; B01J2208/00327; B01J2208/00336; B01J2208/00353; B01J2208/00371
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
APPARATUS FOR FEEDING FLUIDIZED SOLIDS IN A SUBSTANTIALLY UPWARDLY DIRECTION WHICH COMPRISES, IN CONBINATION, A SUBSTANTIALLY VERTICALLY DISPOSED FEED PIPE, CLOSED AT ITS LOWER END, FOR FEEDING SAID FLUIDIZED SOLIDS, A CONDUIT COMMUNICATING WITH SAID FEED PIPE AT A LOWER END PORTION THEREOF, FOR SUPPLYING FLUIDIZED SOLIDS INTO THE LOWER END OF SAID FEED PIPE, AN INJECTION MEANS IN THE LOWER END OF SAID FEED PIPE, FOR SUPPLYING AERATION FLUID TO SAID LOWER END OF SAID FEED PIPE, A SUBSTANTIALLY AXIALLY DISPOSED PIPE OF RELATIVELY SMALLER DIAMETER IN THE LOWER END OF SAID FEED PIPE IN COMMUNICATION WITH THE INTERIOR OF SAID FEED PIPE AND POSITIONED TO EXTEND THROUGH SAID CLOSED LOWER END OF SAID FEED PIPE AND TO EXTEND UPWARDLY INTO SAID FEED PIPE BEYOND THE CONFLUENCE POINT OF SAID CONDUIT AND SAID FEED PIPE, SAID AXIALLY DISPOSED PIPE BEING CLOSED AT ITS LOWER END, A FLUIDIZING AND CARRYING MEDIUM SUPPLY CONDUIT IN OPEN COMMUNICATION WITH SAID AXIALLY DISPOSED PIPE AT ITS LOWER END AND EXTERNALLY OF SAID FEED PIPE, AND A FLKUID FEED CONDUIT OF RELATIVELY
Claim 2
Dependent Claim
178 words
APPARATUS FOR FEEDING FLUIDIZED SOLIDS IN A SUBSTANTIALLY UPWARDLY DIRECTION WHICH COMPRISES, IN CONBINATION, A SUBSTANTIALLY VERTICALLY DISPOSED FEED PIPE, CLOSED AT ITS LOWER END, FOR FEEDING SAID FLUIDIZED SOLIDS, A CONDUIT COMMUNICATING WITH SAID FEED PIPE AT A LOWER END PORTION THEREOF, FOR SUPPLYING FLUIDIZED SOLIDS INTO THE LOWER END OF SAID FEED PIPE, AN INJECTION MEANS IN THE LOWER END OF SAID FEED PIPE, FOR SUPPLYING AERATION FLUID TO SAID LOWER END OF SAID FEED PIPE, A SUBSTANTIALLY AXIALLY DISPOSED PIPE OF RELATIVELY SMALLER DIAMETER IN THE LOWER END OF SAID FEED PIPE IN COMMUNICATION WITH THE INTERIOR OF SAID FEED PIPE AND POSITIONED TO EXTEND THROUGH SAID CLOSED LOWER END OF SAID FEED PIPE AND TO EXTEND UPWARDLY INTO SAID FEED PIPE BEYOND THE CONFLUENCE POINT OF SAID CONDUIT AND SAID FEED PIPE, SAID AXIALLY DISPOSED PIPE BEING CLOSED AT ITS LOWER END, A FLUIDIZING AND CARRYING MEDIUM SUPPLY CONDUIT IN OPEN COMMUNICATION WITH SAID AXIALLY DISPOSED PIPE AT ITS LOWER END AND EXTERNALLY OF SAID FEED PIPE, AND A FLKUID FEED CONDUIT OF RELATIVELY
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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |