Patent US2786808A successfully refreshed from Google Patents.
US2786808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of titanium
Assignee: Chicago Dev Corp
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Filing: 1954-09-22
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Granted: 1957-03-26
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Ben B Raney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:23
CPC Classifications
C; C25; C25C; C25C5/00; C25C5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
PROCESS OF PRODUCING COMMINUTED METALLIC MATERIAL WHICH COMPRISES THE STEPS OF PASSING A PERIODICALLY REVERSED UNIDIRECTIONAL DIRECT CURRENT BETWEEN TWO SIMILAR ELECTRODES EACH BEING FORMED OF A METALLIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, TUNGSTEN, NICKEL-CHRONIUM ALLOYS AND "ALNICO," SAID ELECTRODES BEING IMMERSED IN A MOLTEN ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST ONE HALIDE SALT OF THE GROUP CONSISTIN OF CHLORIDES AND BROMIDES OF ALKALINOUS METALS, SAID MOLTEN BATH BEING MAINTAINED AT A TEMPERATURE AT WHICH SAID ALKALINOUS METAL SALT IS MOLTEN BUT BELOW THE MELTING POINT OF THE METALLIC ELECTRODES, THE REVERSAL FREQUENCIES BEING WITHIN THE RANGE OF FROM ABOUT ONE PER SECOND TO ABOUT ONE PER FIVE MINUTES, WHEREBY TO OBTAIN SAID METALLIC MATERIAL, IN COMMINUTED FORM, DISPERSED IN THE MOLTEN ELECTROLYTE.
Claim 2
Dependent Claim
127 words
PROCESS OF PRODUCING COMMINUTED METALLIC MATERIAL WHICH COMPRISES THE STEPS OF PASSING A PERIODICALLY REVERSED UNIDIRECTIONAL DIRECT CURRENT BETWEEN TWO SIMILAR ELECTRODES EACH BEING FORMED OF A METALLIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, TUNGSTEN, NICKEL-CHRONIUM ALLOYS AND "ALNICO," SAID ELECTRODES BEING IMMERSED IN A MOLTEN ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST ONE HALIDE SALT OF THE GROUP CONSISTIN OF CHLORIDES AND BROMIDES OF ALKALINOUS METALS, SAID MOLTEN BATH BEING MAINTAINED AT A TEMPERATURE AT WHICH SAID ALKALINOUS METAL SALT IS MOLTEN BUT BELOW THE MELTING POINT OF THE METALLIC ELECTRODES, THE REVERSAL FREQUENCIES BEING WITHIN THE RANGE OF FROM ABOUT ONE PER SECOND TO ABOUT ONE PER FIVE MINUTES, WHEREBY TO OBTAIN SAID METALLIC MATERIAL, IN COMMINUTED FORM, DISPERSED IN THE MOLTEN ELECTROLYTE.
References Cited (Backward Citations)
US2734856A
Cited
US1440502A
Cited
US2216167A
Cited
US2413411A
Cited
GB637714A
Cited
FR1064893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |