US2687343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed floating baffle
Assignee: Phillips Petroleum Co
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Filing: 1949-12-19
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Granted: 1954-08-24
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Expires: 1969-12-19
Abstract
No abstract record available.
Inventors
- 👤 James A Crask
- 👤 Robert L Mcintire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:33
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/34; B01J8/005; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00858; B01J2208/00867
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
IN APPARATUS FOR CONTROLLING ENTRAINMENT OF SOLID PARTICLES IN A BED OF SOLID PARTICLES MAINTAINED IN A FLUIDIZED STATE IN A VESSEL BY THE FLOW OF VAPORS THERETHROUGH, THE IMPROVEMENT WHICH COMPRISES AT LEAST ONE BUOYANT PONTOON MEMBER; AND A PLURALITY OF UPWARDLY EXTENDING BAFFLE MEMBERS SUPPORTED UPON AND SECURED TO SAID BUOYANT PONTOON MEMBER SO AS TO FORM WHOLLY CONFINED CHANNELS BETWEEN SAID MEMBERS THROUGH WHICH ASCENDING PARTICLES FROM BELOW SAID PONTOON MEMBER MUST PASS.
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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |