US2998370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactors
Assignee: The General Electric Company PLC
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Filing: 1957-09-25
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Granted: 1961-08-29
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Gaunt Ian Alexander Butler
- 👤 Mitchell Keith James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:11
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/04; G21D5/08; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C1/10; G21C1/12; G21C5/00; G21C5/02; G21C5/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A CORE ARRANGEMENT FOR A NUCLEAR REACTOR, COMPRISING BLOCKS OF MODERATING MATERIAL AND A BASE SUPPORTING MEMBER OF MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION GREATER THAN THAT OF THE MODERATING MATERIAL, SAID BLOCKS BEING ASSEMBLED IN LAYERS AND IN A PLURALITY OF SUBSTANTIALLY VERTICAL COLUMNS IN JUXTAPOSITION UPON SAID BASE MEMBER, AND GARTER RESTRAINING MEANS, SAID GARTER RESTRAINING MEANS BEING ARRANGED TO CLAMP TOGETHER THE BLOCKS IN A SAID LAYER NEAR THE TOP OF THE ASSEMBLY AND BEING ADAPTED TO HAVE SUBSTANTIALLY THE SAME COEFFICIENT OF THERMAL EXPANSION AS THE MODERATING MATERIAL, THE BLOCKS IN EACH COLUMN BELOW SAID CLAMPED LAYER BEING ARRANGED SO THAT THE BOTTOM OF EACH COLUMN IS FREE TO MOVE WITH THERMAL MOVEMENT OF THAT PART OF THE BASE MEMBER WITH WHICH IT IS ASSOCIATED.
Claim 2
Dependent Claim
130 words
A CORE ARRANGEMENT FOR A NUCLEAR REACTOR, COMPRISING BLOCKS OF MODERATING MATERIAL AND A BASE SUPPORTING MEMBER OF MATERIAL HAVING A COEFFICIENT OF THERMAL EXPANSION GREATER THAN THAT OF THE MODERATING MATERIAL, SAID BLOCKS BEING ASSEMBLED IN LAYERS AND IN A PLURALITY OF SUBSTANTIALLY VERTICAL COLUMNS IN JUXTAPOSITION UPON SAID BASE MEMBER, AND GARTER RESTRAINING MEANS, SAID GARTER RESTRAINING MEANS BEING ARRANGED TO CLAMP TOGETHER THE BLOCKS IN A SAID LAYER NEAR THE TOP OF THE ASSEMBLY AND BEING ADAPTED TO HAVE SUBSTANTIALLY THE SAME COEFFICIENT OF THERMAL EXPANSION AS THE MODERATING MATERIAL, THE BLOCKS IN EACH COLUMN BELOW SAID CLAMPED LAYER BEING ARRANGED SO THAT THE BOTTOM OF EACH COLUMN IS FREE TO MOVE WITH THERMAL MOVEMENT OF THAT PART OF THE BASE MEMBER WITH WHICH IT IS ASSOCIATED.
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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |