Paraseismic device for the handling hood of a nuclear reactor

Paraseismic device for a handling hood of a nuclear reactor, comprising an enclosure with a vertical axis connected to a lock communicating with a passage provided in a slab located in the upper part of the reactor. According to the invention the device comprises, mounted between enclosure and lock, an elastic joint permitting the enclosure to perform a gimballing movement around a center located on the vertical axis of the lock, and regulatable tension tie attachment means disposed between the hood and the slab and distributed regularly about the vertical axis, each of said means having an attachment point on the hood disposed in the vicinity of a horizontal plane passing through the center of the ball and socket joint. Application to any power or experimental reactor