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US3785924A Expired / Lapsed US ⏱️ 0.0 years remaining

Nuclear reactor core shroud

Assignee: Combustion Engineering Inc
•
Filing: 1970-09-02
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Granted: 1974-01-15
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Expires: 1990-09-02
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Abstract

Abstract A core shroud comprised of a plurality of vertically stacked cylindrical thermal shields resting on a core support plate. Horizontal plates closely conforming to the core shape are sandwiched between each thermal shield. The inner thermal shield sections have vertical plates in the form of angles welded to the interior in a manner generally conforming to the periphery of the core. An outer thermal shield surrounds each of the inner thermal shields. Vertical tie bolts located in the annular space between the two shields maintain a resiliently compressive force on the stacked array of thermal shield and horizontal plates. A core support barrel surrounds the shield and the structure has openings to permit downward flow of some of the coolant through the various annular spaces formed by the shields prior to passage of coolant through the core.

Inventors

  • 👤 G Notari

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:06
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/08; G21C11/083; G21C11/085; G21C15/00; G21C15/02; G21C15/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-14 1977-07-16 1978-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-14 1981-07-16 1982-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-14 1985-07-16 1986-01-15 $7700.00 Window Closed / Lapsed

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