US3216800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for producing deuterium by distillation of hydrogen
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1961-05-01
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Granted: 1965-11-09
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Stouls Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:53
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/02; B01D59/04; B01D59/28; C; C01; C01B; C01B4/00; F; F25; F25J; F25J3/00; F25J3/08; F25J2215/00; F25J2215/10; F25J2220/00; F25J2220/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF PRODUCING DEUTERIUM SUBSTANTIALLY FREE OF TRITIUM WHICH COMPRISES INTRODUCING AT THE TOP OF A DISTIALLATION COLUMN A MIXTURE CONSISTING OF LIQUID HYDROGEN ENRICHED IN DEUTERIUM AND CONTAINING TRITIUM, WITHDRAWING THE MOST VOLATILE FRACTION OF THE MIXTURE, WHICH CONSISTS ESSENTIALLY OF HYDROGEN GAS, FROM THE HEAD OF THE COLUMN, PRODUCING IN THE MIDDLE PORTION OF THE COLUMN A ZONE OF ENRICHMENT OF DEUTERIUM KWHILE MAINTAINING THE CONCENTRATION OF TRITIUM IN SAID ZONE SUBSTANTIALLY CONSTANT, ACCUMULATING LIQUID ENRICHED IN TRITIUM IN THE LOWERMOST PORTION OF THE COLUMN, WITHDRAWING SAID LIQUID WHICH CONTAINS SUBSTANTIALLY THE ENTRIE INTRODUCED TRITUM FROM THE BOTTOM OF THE COLUMN, AND WITHDRAWING A FRACTION ENRICHED IN DEUTERIUM AND SUBSTANTIALLY FREE OF TRITUM FROM A LOWER PART OF SAID MIDDLE PORTION OF THE COLUMN.
Claim 2
Independent Claim
127 words
A METHOD OF PRODUCING DEUTERIUM SUBSTANTIALLY FREE OF TRITIUM WHICH COMPRISES INTRODUCING AT THE TOP OF A DISTIALLATION COLUMN A MIXTURE CONSISTING OF LIQUID HYDROGEN ENRICHED IN DEUTERIUM AND CONTAINING TRITIUM, WITHDRAWING THE MOST VOLATILE FRACTION OF THE MIXTURE, WHICH CONSISTS ESSENTIALLY OF HYDROGEN GAS, FROM THE HEAD OF THE COLUMN, PRODUCING IN THE MIDDLE PORTION OF THE COLUMN A ZONE OF ENRICHMENT OF DEUTERIUM KWHILE MAINTAINING THE CONCENTRATION OF TRITIUM IN SAID ZONE SUBSTANTIALLY CONSTANT, ACCUMULATING LIQUID ENRICHED IN TRITIUM IN THE LOWERMOST PORTION OF THE COLUMN, WITHDRAWING SAID LIQUID WHICH CONTAINS SUBSTANTIALLY THE ENTRIE INTRODUCED TRITUM FROM THE BOTTOM OF THE COLUMN, AND WITHDRAWING A FRACTION ENRICHED IN DEUTERIUM AND SUBSTANTIALLY FREE OF TRITUM FROM A LOWER PART OF SAID MIDDLE PORTION OF THE COLUMN.
References Cited (Backward Citations)
US2908554A
Cited
US2927003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |