US3566830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed apparatus
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1968-10-01
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Granted: 1971-03-02
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Expires: 1988-10-01
Abstract
Abstract A fluidized bed vessel has a fluid injection assembly arranged to inject process gas and fluidizing fluid into the vessel via separate coaxial orifices. The construction of the assembly is such as to provide two annular injection orifices for fluidizing fluid. These orifices serve to direct fluidizing fluid over the wall of the vessel and over the process gas injection orifice. The assembly gives fine control over the concentricity of the orifices.
Inventors
- 👤 Hermann Jakob Flamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:40
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; B01J2/00; B01J2/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A fluidized bed coater according to claim 1 including means for directing the fluidizing gas over the surface of said cylindrical wall and means for directing said bleed gas over the mouth of said gas injection nozzle.
Claim 2
Dependent Claim
78 words
An apparatus as claimed in claim 1 in which the gas injection assembly comprises a tube having a reduced diameter portion at its end adjacent the furnace portion, the shoulder so formed having an annular groove in its end face to define said annular gallery communicating with the peripheral flutes and a ferrule secured in said annular groove in such a manner as to define an annular passage between the annular gallery and the mouth of the tube.
References Cited (Backward Citations)
US3110626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |