US2856273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for low velocity fluidization
Assignee: Pure Oil Co
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Filing: 1953-12-28
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Granted: 1958-10-14
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Oral L Beber
- 👤 Kenneth M Watson
- 👤 Byron B Woertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:54
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44; B01J8/08; B01J8/10; B01J8/16; B01J8/40; Y; Y10; Y10S; Y10S159/00; Y10S159/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN APPARATUS COMPRISING, IN COMBINATION, A VERTICAL, ELONGATED REACTION CHAMBER DEFINED BY A REACTOR WALL HOUSING A LOWER VAPOUR INLET ZONE, AN INTERMEDIATE FLUIDIZED SOLIDS ZONE, AND AN UPPER VAPOUR-SOLID SEPARATING ZONE, SUPPORT MEANS EXTENDING IN RESILIENT, SEALED RELATIONSHIP TRANSVERSE SAID CHAMBER BETWEEN SAID FLUIDIZED SOLIDS ZONE AND SAID VAPOUR INLET ZONE TO SUPPORT SAID SOLIDS AND ALLOW THE PASSAGE OF SAID VAPOURS, A ROTATABLE SHAFT EXTENDING THROUGH SAID SUPPORT MEANS A THROUGH A PASSAGEWAY IN SAID HOUSING IN SEALED RELATIONSHIP THEREWITH, MEANS ATTAECHED TO SAID SHAFT ADJACENT TO AND SPACED FROM SAID SUPPORT MEANS TO IMPART CENTRIPETAL FORCE TO
Claim 2
Independent Claim
100 words
AN APPARATUS COMPRISING, IN COMBINATION, A VERTICAL, ELONGATED REACTION CHAMBER DEFINED BY A REACTOR WALL HOUSING A LOWER VAPOUR INLET ZONE, AN INTERMEDIATE FLUIDIZED SOLIDS ZONE, AND AN UPPER VAPOUR-SOLID SEPARATING ZONE, SUPPORT MEANS EXTENDING IN RESILIENT, SEALED RELATIONSHIP TRANSVERSE SAID CHAMBER BETWEEN SAID FLUIDIZED SOLIDS ZONE AND SAID VAPOUR INLET ZONE TO SUPPORT SAID SOLIDS AND ALLOW THE PASSAGE OF SAID VAPOURS, A ROTATABLE SHAFT EXTENDING THROUGH SAID SUPPORT MEANS A THROUGH A PASSAGEWAY IN SAID HOUSING IN SEALED RELATIONSHIP THEREWITH, MEANS ATTAECHED TO SAID SHAFT ADJACENT TO AND SPACED FROM SAID SUPPORT MEANS TO IMPART CENTRIPETAL FORCE TO
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |