Patent US2817631A successfully refreshed from Google Patents.
US2817631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining titanium alloys
Assignee: Chicago Dev Corp
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Filing: 1956-03-23
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Granted: 1957-12-24
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 William W Gullett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:45
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/26; C25C3/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
AS A NEW COMPOSITION OF MATTER A SINGLE LIQUID CONSISTING ESSENTIALY OF AT LEAST ONE CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, IN MOLTEN STATE, AND DISSOLVED THEREIN FROM 0.25-5.0% SOLUBLE TITANIUM AS A LOWER CHLORIDE THERIN FROM 0.1-2.0% OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALALINE EARTH METALS.
Claim 2
Dependent Claim
61 words
AS A NEW COMPOSITION OF MATTER A SINGLE LIQUID CONSISTING ESSENTIALY OF AT LEAST ONE CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, IN MOLTEN STATE, AND DISSOLVED THEREIN FROM 0.25-5.0% SOLUBLE TITANIUM AS A LOWER CHLORIDE THERIN FROM 0.1-2.0% OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALALINE EARTH METALS.
Claim 3
Independent Claim
132 words
THE METHOD OF ELECTROREEFINING A TITANIUM ALLOY CONTAINING OXYGEN AND AN ALLOYING METAL MORE NOBLE THAN TITANIUM, WHICH COMPRISES MAKING THE COMMINUTED ALLOY AN ANODE IN AN ELECTROLYTIC CELL HAVING A CATHODE AND AN ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST ONE CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLO-RIDES AND ALKALINE EARTH METAL CHLORIDES, IN MOLTEN STATE, AND DISSOLVED THEREIN 0.25W SOLUBLE TITANIUM AS LOWER CHLORIDE AND 0.1-2.0% OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS. AND PASSING A DIECT CURRENT FROM ANODE TO CATHODE AT AN ANODE CURRENT DENISTY OF .50-3000 AMPERES PER SQUARE FOOT AND A CATHODE CURRENT DENSITY OF 100-5000 AMPERES PER SQUARE FOOT WHEREBY TO DISSOLVE TITANIUM AT TICL2 ONLY AND TO LEAVE MORE NOBLE METALS IN THE ANODE RESIDUE.
Claim 4
Independent Claim
132 words
THE METHOD OF ELECTROREEFINING A TITANIUM ALLOY CONTAINING OXYGEN AND AN ALLOYING METAL MORE NOBLE THAN TITANIUM, WHICH COMPRISES MAKING THE COMMINUTED ALLOY AN ANODE IN AN ELECTROLYTIC CELL HAVING A CATHODE AND AN ELECTROLYTE CONSISTING ESSENTIALLY OF AT LEAST ONE CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL CHLO-RIDES AND ALKALINE EARTH METAL CHLORIDES, IN MOLTEN STATE, AND DISSOLVED THEREIN 0.25W SOLUBLE TITANIUM AS LOWER CHLORIDE AND 0.1-2.0% OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS. AND PASSING A DIECT CURRENT FROM ANODE TO CATHODE AT AN ANODE CURRENT DENISTY OF .50-3000 AMPERES PER SQUARE FOOT AND A CATHODE CURRENT DENSITY OF 100-5000 AMPERES PER SQUARE FOOT WHEREBY TO DISSOLVE TITANIUM AT TICL2 ONLY AND TO LEAVE MORE NOBLE METALS IN THE ANODE RESIDUE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |