Nested sleeve grid restraint system

Details Nested sleeve grid restraint system Nested sleeve grid restraint system

1998-01-23

1999-04-27

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376442, 376438, G21C 334

Patent

active

058987509

ABSTRACT:
A nested sleeve grid restraint system and a method for making a nested sleeve grid restraint system are disclosed. The nested sleeve grid restraint system comprises an insert tube installed in and secured to the intermediate spacer grid and concentrically around a fuel assembly instrumentation tube, the insert tube having ends extending from the intermediate spacer grid, respectively, above and below the intermediate spacer grid; two spacer sleeves, each having flared ends; the spacer sleeves each being fitted concentrically around the fuel assembly instrumentation tube, respectively, above and below the intermediate spacer grid; the flared ends of the spacer sleeves fitting over the ends of the insert tube extending above and below the intermediate space grid whereby the insert tube nests in the spacer sleeves.

REFERENCES:
patent: 4294660 (1981-10-01), Christiansen
patent: 4678630 (1987-07-01), King et al.

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