US3301666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum purification system
Assignee: Reynolds Metals Co
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Filing: 1964-08-31
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Granted: 1967-01-31
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Martin Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:43
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0038; C22B21/0053; C22B21/0061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
METHOD FOR THE CRYSTALLIZATION OF ALUMINUM FROM A LIQUID AMALGAM OF ALUMINUM AND MERCURY WHICH COMPRISES THE STEPS OF PROVIDING A BODY OF LIQUID ALUMINUMMERCURY AMALGAM, MAINTAINING SAID BODY SUBSTANTIALLY QUIESCENT AND IN CONTACT WITH A SURROUNDING PERIPHEREAL ZONE OF A LIQUID LAYER OF MERCURY CONTAINING A SUBSTANTIALLY LOWER ALUMINUM CONCENTRATION THAN THAT PREVAILING IN THE CENTER OF SAID BODY, INTRODUCING HOT ALUMINUMMERCURY AMALGAM INTO THE LOWER PORTION OF SAID QUIESCENT BODY, CRYSTALLIZING ALUMINUM CRYSTALS WHOLLY WITHIN SAID QUIESCENT BODY, ALLOWING SAID ALUMINUM CRYSTALS TO RISE TO THE TOP OF SAID BODY AND REMOVING THEM THEREFORM, AND REMOVING SPENT LIQUID AMALGAM FROM THE UPPER PORTION OF SAID QUIESCENT BODY.
Claim 2
Dependent Claim
109 words
METHOD FOR THE CRYSTALLIZATION OF ALUMINUM FROM A LIQUID AMALGAM OF ALUMINUM AND MERCURY WHICH COMPRISES THE STEPS OF PROVIDING A BODY OF LIQUID ALUMINUMMERCURY AMALGAM, MAINTAINING SAID BODY SUBSTANTIALLY QUIESCENT AND IN CONTACT WITH A SURROUNDING PERIPHEREAL ZONE OF A LIQUID LAYER OF MERCURY CONTAINING A SUBSTANTIALLY LOWER ALUMINUM CONCENTRATION THAN THAT PREVAILING IN THE CENTER OF SAID BODY, INTRODUCING HOT ALUMINUMMERCURY AMALGAM INTO THE LOWER PORTION OF SAID QUIESCENT BODY, CRYSTALLIZING ALUMINUM CRYSTALS WHOLLY WITHIN SAID QUIESCENT BODY, ALLOWING SAID ALUMINUM CRYSTALS TO RISE TO THE TOP OF SAID BODY AND REMOVING THEM THEREFORM, AND REMOVING SPENT LIQUID AMALGAM FROM THE UPPER PORTION OF SAID QUIESCENT BODY.
References Cited (Backward Citations)
US2550502A
Cited
US2707678A
Cited
US2718389A
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US2666304A
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US2977234A
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US3102805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |