US3679378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating the core of a tubular nuclear fuel element
Assignee: ENI Electrische Nijverheidsinstallaties
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Filing: 1969-07-09
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Granted: 1972-07-25
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Expires: 1989-07-09
Abstract
Abstract THE ELECTRICALLY CONDUCTIVE OUTER CLADDING OF A TUBULAR ELEMENT IS SEPARATED FROM THE INNER CORE OF THE ELEMENT BY CUTTING THE CLADDING ELECTROCHEMICALLY USING AN ELECTROLYTE AND SIMULTANEOUSLY LEACHING THE CORE MATERIAL OUT OF THE CLADDING BY MEANS OF THE ELECTROLYTE. THE ELECTRODE USED TO EFFECT THE ELECTROCHEMICAL CUTTING MAY BE HOLLOW AND THE ELECTROLYTE PASSED THROUGH IT UNDER PRESSURE. THE ELECTROLYTE MAY BE OF A NATURE WHICH DISSOLVES THE CORE MATERIAL. A SCREEN BENEATH THE TUBULAR ELEMENT CATCHES EMPTY CUT SECTIONS OF THE ELEMENT BUT ALLOWS THE ELECTROLYTE AND THE CORE MATERIAL TO PASS THROUGH FOR COLLECTION.
Inventors
- 👤 Jean Van Impe
- 👤 Pierre E Chaussonnet
- 👤 Jean Pierre M Rombaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:13
CPC Classifications
C; C25; C25F; C25F7/00; B; B23; B23H; B23H9/00; G; G21; G21C; G21C19/00; G21C19/34; G21C19/38; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |