Spring retention cap

Details Spring retention cap Spring retention cap

1987-08-24

1988-12-20

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376448, G21C 332

Patent

active

047924292

ABSTRACT:
An upper end fitting 14 of a nuclear fuel assembly is provided at two of its opposite corners with spring retention caps 12 having a hook-like structrue defined by an inwardly directed flange 50 engaging a slot 56 in the top nozzle or end fitting 14. The spring packs 20 are retained within the spring retention caps 12 even if one or both spring retention screws 34 break and both the broken screw portions and the springs are maintained in operative position by the cap 12 until reconstitution.

REFERENCES:
patent: 4687631 (1987-08-01), Wilson
patent: 4699760 (1987-10-01), Smallenberger

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