US3158467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decomposing method and apparatus for subhalide distillation
Assignee: Alcan Research and Development Ltd
•
Filing: 1960-12-14
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Granted: 1964-11-24
•
Expires: 1980-12-14
Abstract
No abstract record available.
Inventors
- 👤 Ethan A Hollingshead
- 👤 Norman W F Phillips
- 👤 Southam Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:06
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0038; C22B21/0046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A DECOMPOSER FOR DERIVING LIQUID ALUMINUM FROM GASEOUS ALUMINUM SUBHALIDE, COMPRISING MEANS COMPOSED OF GRAPHITE AND HAVING INTERNAL BUFFLES AND ARRANGED TO PROVIDE A CONFINED, BAFFLED PATH FOR GASEOUS ALUMINUM SUBHALIDE, FOR TRANSFERRING HEAT FROM THE GASEOUS SUBHALIDE TO THE GRAPHITE TO DECOMPOSE THE SUBHALIDE AND DEPOSIT LIQUID ALUMINUM ON THE GRAPHITE INSIDE SAID MEANS, SAID MEANS HAVING CONFINING WALL STRUCTURE OF GRAPHITE FOR RECEIVING SAID TRANSFERRED HEAT BY CONDUCTION, AND AN OUTER METALLIC CASING SURROUNDING SAID WALL AND HAVING COOLING MEANS, SAID GRAPHITE WALL STRUCTURE OF THE FIRST MENTIONED MEANS BEING SPACED INWARDLY OF SAID CASING, FOR TRANSFER OF HEAT BY RADIATION FROM THE WALL STRUCTURE ACROSS THE SPACE TO THE CASING, AND SAID FIRST MENTIONED MEANS BEING INTERNALLY ARRANGED FOR FLOW OF THE DEPOSITED LIQUID ALUMINUM TO A LOCALITY OF COLLEC-
Claim 2
Dependent Claim
133 words
A DECOMPOSER FOR DERIVING LIQUID ALUMINUM FROM GASEOUS ALUMINUM SUBHALIDE, COMPRISING MEANS COMPOSED OF GRAPHITE AND HAVING INTERNAL BUFFLES AND ARRANGED TO PROVIDE A CONFINED, BAFFLED PATH FOR GASEOUS ALUMINUM SUBHALIDE, FOR TRANSFERRING HEAT FROM THE GASEOUS SUBHALIDE TO THE GRAPHITE TO DECOMPOSE THE SUBHALIDE AND DEPOSIT LIQUID ALUMINUM ON THE GRAPHITE INSIDE SAID MEANS, SAID MEANS HAVING CONFINING WALL STRUCTURE OF GRAPHITE FOR RECEIVING SAID TRANSFERRED HEAT BY CONDUCTION, AND AN OUTER METALLIC CASING SURROUNDING SAID WALL AND HAVING COOLING MEANS, SAID GRAPHITE WALL STRUCTURE OF THE FIRST MENTIONED MEANS BEING SPACED INWARDLY OF SAID CASING, FOR TRANSFER OF HEAT BY RADIATION FROM THE WALL STRUCTURE ACROSS THE SPACE TO THE CASING, AND SAID FIRST MENTIONED MEANS BEING INTERNALLY ARRANGED FOR FLOW OF THE DEPOSITED LIQUID ALUMINUM TO A LOCALITY OF COLLEC-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |