US3219540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflectors for nuclear reactors having removable solid moderator elements
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1962-05-09
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Granted: 1965-11-23
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Costes Didier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:29
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/14; G21C1/16; G21C1/18; G21C1/20; G21C11/00; G21C11/06; G21C5/00; G21C5/02; G21C5/04; G21C5/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A HETEROGENOUS NUCLEAR REACTOR OF THE HORIZONTAL PRESSURE-TUBE TYPE, A TANK, AN INTERNAL SURFACE FOR SAID TANK, A HEAVY WATER LIQUID MODERATOR FILLING SAID TANK, AN INTERNAL LINING FOR SAID TANK ON SAID INTERNAL SURFACE CONSISTING OF REMOVABLE PRISMATIC CANNED ELEMENTS OF SOLID GRAPHITE MODERATOR MATERIAL EXTENDING SUBSTANTIALLY THE LENGTH OF SAID TANK AND COVERED WITH A MATERIAL HAVING A LOW NEUTRON-ABSORPTION CAPACITY, MEANS FOR HOLDING SAID CANNED ELEMENTS AGAINST THE INTERNAL SURFACE OF SAID TANK WITH SAID LIQUID MODERATOR IN CONTACT WITH SAID CANNED ELEMENTS, AT LEAST ONE OPENING IN SAID TANK FOR INSERTION OF SAID MODERATOR ELEMENTS AND SAID MEANS CONSISTING OF A THIN WALL PERVIOUS TO SAID LIQUID MODERATOR SPACED INTERNALLY FROM SAID INTERNAL SURFACE.
Claim 2
Dependent Claim
119 words
IN A HETEROGENOUS NUCLEAR REACTOR OF THE HORIZONTAL PRESSURE-TUBE TYPE, A TANK, AN INTERNAL SURFACE FOR SAID TANK, A HEAVY WATER LIQUID MODERATOR FILLING SAID TANK, AN INTERNAL LINING FOR SAID TANK ON SAID INTERNAL SURFACE CONSISTING OF REMOVABLE PRISMATIC CANNED ELEMENTS OF SOLID GRAPHITE MODERATOR MATERIAL EXTENDING SUBSTANTIALLY THE LENGTH OF SAID TANK AND COVERED WITH A MATERIAL HAVING A LOW NEUTRON-ABSORPTION CAPACITY, MEANS FOR HOLDING SAID CANNED ELEMENTS AGAINST THE INTERNAL SURFACE OF SAID TANK WITH SAID LIQUID MODERATOR IN CONTACT WITH SAID CANNED ELEMENTS, AT LEAST ONE OPENING IN SAID TANK FOR INSERTION OF SAID MODERATOR ELEMENTS AND SAID MEANS CONSISTING OF A THIN WALL PERVIOUS TO SAID LIQUID MODERATOR SPACED INTERNALLY FROM SAID INTERNAL SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |