Patent US3238023A successfully refreshed from Google Patents.
US3238023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed reactor
Assignee: Laporte Titanium Ltd
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Filing: 1963-04-25
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Granted: 1966-03-01
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Craig Thomas Gardner
- 👤 Perrins Alfred Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:17
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00477; B01J2208/00495; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A FLUIDIZED BED REACTOR COMPRISING A REACTION VESSEL HAVING A SIDE WALL, A BOTTOM WALL AND A BASE PLATE DISPOSED ADAPTED TO SUPPORT A BED OF PARTICLES TO BE FLUIDIZED AND ACROSS SAID VESSEL NEAR THE BOTTOM WALL, SAID PLATE BEING BEING PROVIDED WITH A PLURALITY OF PERFORATIONS FOR THE PASSGE THERETHROUGH OF FLUIDIZING GAS, A PLURALITY OF REFRACTORY BLOCKS EACH HAVING A BASE PROTION AND AN UPPER PORTION, THE BASE PORTIONS OF SAID BLOCKS EXTENDING OVER SUBSTANTIALLY THE ENTIRE UPPER SURFACE OF SAID PLATE, AT LEAST THOSE BLOCKS THAT ARE NOT ADJACENT OT SAID SIDE WALL BEING PROVIDED WITH BORES, EACH OF SAID BORES HAVING AN OPENING IN THE BASE PORTION OF ITS BLOCK ARRANGED IN OPERATIVE COMMUNICATION WITH THE PERFORATION IN SAID PLATE AND AT LEAST ONE TERMINAL PORTION IN THE UPPER PORTION OF ITS BLOCK, SAID BORE FORMING THE SOLE MEANS OF COMMUNICATION BETWEEN THE REGION BELOW THE BASE PLATE AND THE REGION ABOVE THE BLOCKS, THE UPPER PORTIONS OF AT LEAST THOSE BLOCKS WHICH ARE PROVIDED WITH BORES BEING OF REDUCED HORIZONTAL CROSS-SECTIONAL AREA WITH RESPECT TO THEIR LOWER PORTIONS AND THE TERMINAL PORTIONS OF THE BORES EXITING THROUGH SAID UPPER PORTIONS INTO THE REGION ABOVE THE PLATE AT AN ANGLE OF NO MORE THAN 90* WITH RESPECT TO SAID PLATE.
Claim 2
Dependent Claim
215 words
A FLUIDIZED BED REACTOR COMPRISING A REACTION VESSEL HAVING A SIDE WALL, A BOTTOM WALL AND A BASE PLATE DISPOSED ADAPTED TO SUPPORT A BED OF PARTICLES TO BE FLUIDIZED AND ACROSS SAID VESSEL NEAR THE BOTTOM WALL, SAID PLATE BEING BEING PROVIDED WITH A PLURALITY OF PERFORATIONS FOR THE PASSGE THERETHROUGH OF FLUIDIZING GAS, A PLURALITY OF REFRACTORY BLOCKS EACH HAVING A BASE PROTION AND AN UPPER PORTION, THE BASE PORTIONS OF SAID BLOCKS EXTENDING OVER SUBSTANTIALLY THE ENTIRE UPPER SURFACE OF SAID PLATE, AT LEAST THOSE BLOCKS THAT ARE NOT ADJACENT OT SAID SIDE WALL BEING PROVIDED WITH BORES, EACH OF SAID BORES HAVING AN OPENING IN THE BASE PORTION OF ITS BLOCK ARRANGED IN OPERATIVE COMMUNICATION WITH THE PERFORATION IN SAID PLATE AND AT LEAST ONE TERMINAL PORTION IN THE UPPER PORTION OF ITS BLOCK, SAID BORE FORMING THE SOLE MEANS OF COMMUNICATION BETWEEN THE REGION BELOW THE BASE PLATE AND THE REGION ABOVE THE BLOCKS, THE UPPER PORTIONS OF AT LEAST THOSE BLOCKS WHICH ARE PROVIDED WITH BORES BEING OF REDUCED HORIZONTAL CROSS-SECTIONAL AREA WITH RESPECT TO THEIR LOWER PORTIONS AND THE TERMINAL PORTIONS OF THE BORES EXITING THROUGH SAID UPPER PORTIONS INTO THE REGION ABOVE THE PLATE AT AN ANGLE OF NO MORE THAN 90* WITH RESPECT TO SAID PLATE.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |