Nuclear fuel element

Details Nuclear fuel element Nuclear fuel element

1977-02-24

1978-07-04

Nelson, Peter A.

176 76, 176 78, G21C 302

Patent

active

040986446

ABSTRACT:
A nuclear fuel element comprises an elongated tube having upper and lower end plugs fixed to both ends thereof and nuclear fuel pellets contained within the tube. The fuel pellets are held against the lower end plug by a spring which is supported by a setting structure. The setting structure is maintained at a proper position at the middle of the tube by a wedge effect caused by spring force exerted by the spring against a set of balls coacting with a tapered member of the setting structure thereby wedging the balls against the inner wall of the tube and the setting structure is moved free by pushing with a push bar against the spring force so as to release the wedge effect.

REFERENCES:
patent: 3607638 (1971-09-01), Selm
patent: 3804710 (1974-04-01), Bresnick
patent: 3963566 (1976-06-01), MacMillan et al.
patent: 4011134 (1977-03-01), Stehle et al.

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