Patent US3609728A successfully refreshed from Google Patents.
Patent US3616596A successfully refreshed from Google Patents.
US3616596A
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US
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Process and device for the separation of molecules of different masses
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1969-02-17
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Granted: 1971-11-02
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Expires: 1989-02-17
Abstract
Abstract A GASEOUS MIXTURE CONTAINING MOLECULES OF DIFFERENT MASSES WHICH ARE TO BE SEPARATED IS ADMITTED INTO A CASING AT A PREDETERMINED PRESSURE THROUGH AN INLET TUBE LOCATED AT A SUITABLE DISTANCE FROM AN AUXILIARY GAS INLET NOZZLE. SAID AUXILIARY GAS IS ADMITTED INTO SAID CASING AT A SUPERSONIC VELOCITY SO AS TO FORM A JET, THE GASIOUS MIXTURE BEING EXTRACTED ALONG THE AXIS OF SAID AUXILIARY GAS JET THROUGH A DISCHARGE DUCT WHOSE RIM IS PLACED DOWNSTREAM OF THE MACH DISC OR TRANSVERSE DOWNSTREAM FACE OF THE SHOCK STRUCTURE PRODUCED BY SAID JET. THE GASEOUS MIXTURE WHICH IS THUS EXTRACTED IS FOUND TO BE SUBSTANTIALLY ENRICHED IN LIGHT MOLECULES.
Inventors
- 👤 Roger Campargue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:48
CPC Classifications
C; C01; C01B; C01B23/00; B; B01; B01D; B01D49/00; B01D49/006; B01D53/00; B01D53/24; B01D59/00; B01D59/10; B01D59/18; Y; Y02; Y02P; Y02P20/00; Y02P20/151; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |