US3746516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sole plate for fluidized bed reactor
Assignee: FAB DE PROD CHEM DE THANN ET DE MULHOUSE FR
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Filing: 1971-03-10
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Granted: 1973-07-17
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Expires: 1991-03-10
Abstract
Abstract A SUPPORT PLATE FOR A FLUIDIZED BED REACTOR HAS INTERNALLY LOCATED CHAMBERS, EACH PROVIDED WITH AT LEAST ONE INLET AND OUTLET CONDUIT WHICH ARE NOT IN LINE WITH ONE ANOTHER; THE PLATE FACE WHICH WILL BE IN CONTACT WITH THE FLUIDISED BED IS SUBSTANTIALLY FLAT AND THE INLET CONDUIT OPENS INTO THE CHAMBER INWARDLY OF THE ASSOCIATED CHAMBER WALLS TO PROVIDE A TRAP ZONE SURROUNDING THE INLET CON- DUIT WHICH WILL HOLD ANY SOLID PARTICLES ENTERING THE CHAMBER AND PREVENT THEM FROM HINDERING THE FLOW OF GAS THROUGH THE PLATE. THE CHAMBERS AND CONDUITS MAY BE OF STAINLESS STEEL EMBEDDED IN REFRACTORY CONCRETE. THE PLATE MAY BE USED IN THE CHLORINATION OF TITANIUM ORES.
Inventors
- 👤 A Michaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:16
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/16
Claims Analysis
Total Claims: 0
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |