Method and apparatus for production of metallic powders
Abstract
Abstract IN THE PROCESS OF PRODUCING ELEMENTAL METAL POWDERS, ESPECIALLY REFRACTORY METALS, USING A PLASMA REACTOR, THE REACTANT FEED MATERIAL IS INTRODUCED INTO THE REACTION ZONE OF THE REACTOR AND THE EFFLUENT FROM THE REACTION ZONE IS DIRECTED INTO A QUENCHING ZONE THROUGH A SELECTIVELY VARI-ABLE PASSAGEWAY OR ORIFICE IN A MANNER THAT PERMITS SEPARATION OF THE METAL PARTICLES FROM THE EFFLUENT HOTT GAS STREAM AND CONTINUOUS COLLECTION OF THE METALLIC POWDER IN A COLLECTION ZONE WHEREIN THE METALLIC POWDER IS OF A SELECTED CHARACTERISTIC, CONTROLLED BY THE MAINTENANCE OF CERTAIN OPERATIONAL PARAMETERS, INCLUDING A SELECTED DIFFERENTIAL FLUID PRESSURE IN THE COLLECTION ZONE AS WELL AS REACTION AND COLLECTTION ZONE TEMPERATURES. APPARATUS FOR CARRYING OUT THE PROCESS IS ALSO DISCLOSED.
Inventors
- 👤 R Davis
- 👤 T Meyer
- 👤 R Blizzard
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |