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Vayra; Jean
Aix-en-Provence, FR
No. of patents:

Patent Number Title Of Patent Date Issued
4019954 Safety device for a nuclear reactor and especially a fast reactor April 26, 1977
The safety device comprises an absorber element connected by a separable coupling to the lower end of a vertical operating stem. When released, the absorber element drops under gravity from a top position to a bottom position within an open-topped casing placed among wrappers containing
3996101 Device for supporting a fuel pin cluster within a nuclear reactor fuel assembly wrapper December 7, 1976
A supporting member for an array of parallel rails each carrying one row of slidably mounted pins of a fuel cluster is placed coaxially at the lower end of a vertical fuel assembly wrapper. Each parallel rail is provided at each end with a downward extension and terminal lug which engage

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