US3390980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing beryllium halides from beryllium ore in a high intensity ore
Assignee: Mhd Res Inc
•
Filing: 1964-01-20
•
Granted: 1968-07-02
•
Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Harry K Orbach
- 👤 Jacob G Bedjai
- 👤 Richard E Martindill
- 👤 Kritchevsky Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:32
CPC Classifications
C; C01; C01F; C01F3/00; C22; C22B; C22B35/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
THE PROCESS THAT INCLUDES FLOWING AN ARC STABILIZER INERT GAS STREAM BETWEEN SPACED NON-CONSUMABLE ELECTRODES AND THROUGH A REDUCED PASSAGE DISCHARGING INTO AN ENLARGED RECTION CHAMBER, MAINTAINING AT THE DISCHARGE END OF SAID PASSAGE AND IN THE CHAMBER AN ELECTRIC ARC, INTRODUCING TO THE ARC ATMOSPHERE BERYLLIUM ESSENTIALLY IN THE FORM OF ITS OXIDE, ALSO CARBON SOURCE MATERIAL AND A HALOGEN OF THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AND THEREBY REACTING BERYLLIUM AND THE HALOGEN TO FORM BERYLLIUM HALIDE SAID ARC HAVING AN ENERGY DENSITY AT LEAST AS HIGH AS ABOUT 500 WATTS PER CUBIC CENTIMETER AND PRIVIDING AN ARC REACTION TEMPERATURE BETWEEN ABOUT 2000*C. AND 10,000*C.
Claim 2
Dependent Claim
108 words
THE PROCESS THAT INCLUDES FLOWING AN ARC STABILIZER INERT GAS STREAM BETWEEN SPACED NON-CONSUMABLE ELECTRODES AND THROUGH A REDUCED PASSAGE DISCHARGING INTO AN ENLARGED RECTION CHAMBER, MAINTAINING AT THE DISCHARGE END OF SAID PASSAGE AND IN THE CHAMBER AN ELECTRIC ARC, INTRODUCING TO THE ARC ATMOSPHERE BERYLLIUM ESSENTIALLY IN THE FORM OF ITS OXIDE, ALSO CARBON SOURCE MATERIAL AND A HALOGEN OF THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AND THEREBY REACTING BERYLLIUM AND THE HALOGEN TO FORM BERYLLIUM HALIDE SAID ARC HAVING AN ENERGY DENSITY AT LEAST AS HIGH AS ABOUT 500 WATTS PER CUBIC CENTIMETER AND PRIVIDING AN ARC REACTION TEMPERATURE BETWEEN ABOUT 2000*C. AND 10,000*C.
Claim 3
Dependent Claim
24 words
THE PROCESS OF CLAIM 1, INCLUDING THE FURTHER STEP OF REACTING THE BERYLLIUM CHLORIDE WITH VAPOROUS SODIUM TO PRODUCE FINELY DIVIDED METALLIC BERYLLIUM POWDER.
References Cited (Backward Citations)
US2616843A
Cited
US2870007A
Cited
US2956862A
Cited
US3077108A
Cited
US3051639A
Cited
US3012954A
Cited
US3084037A
Cited
US3004137A
Cited
US3254958A
Cited
US3332870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |