US3649451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor containment system
Assignee: Westinghouse Electric Corp
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Filing: 1968-09-23
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Granted: 1972-03-14
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Expires: 1988-09-23
Abstract
Abstract A nuclear reactor containment system wherein a nuclear reactor vessel is supported within a normally dry well and means are provided for flooding the dry well to protect the nuclear core against melt down in the event of a vessel failure. A first quantity of coolant fluid, for example, borated water, is provided to fill the dry well to a level beneath the vessel, and a second quantity of coolant fluid, which may be obtained from condensed primary coolant that had been lost through a rupture in the primary system, is utilized to fill the dry well to a sufficient level to protect the nuclear core.
Inventors
- 👤 Joseph M Yedidia
- 👤 Peter W Reichelsdorfer
- 👤 Joseph W Dorrycott
- 👤 James G Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
G; G21; G21C; G21C9/00; G21C9/004; G21C9/012; Y; Y02; Y02E; Y02E30/00; Y02E30/30
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |