Neutron-absorber release device

A resettable device for supporting an object and for releasing the object with a parameter of an environment at a critical value, comprising:

• flexible container means in contact with the environment, an anchor to which said container means is coupled, and spring means coupled to said container means for biasing said container means to a configuration extending linearly from said anchor, said container means having within a material whose temperature varies in proportion to the parameter, said material having a melting point corresponding to the critical value of the parameter;
• said material occupying a sufficient volume of said container means so that with said material in the solid state and said container means in said configuration, said container means has a specific structural strength sufficient to allow the coupling thereto of the object thereby supporting the object, the object being coupled to said container means in such manner that said object exerts a force on said container means perpendicular to said configuration extending linearly from said anchor, with the parameter of the environment at least equal to the critical value thereof said material assuming the liquid state and said container having insufficient structural strength to support the object and in response to said force exerted by said object said container means flexes;
• flexing of said container means due to said force releasing the coupling of the object thereto, with releasing of the coupling said container means being forced by said spring means to assume said configuration so that with the parameter of the environment falling below the critical value, said material reassumes the solid state and said container means regains said specific structural strength.