F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16J—PISTONS; CYLINDERS; SEALINGS
F16J13/00—Covers or similar closure members for pressure vessels in general
F16J13/02—Detachable closure members; Means for tightening closures
F16J13/08—Detachable closure members; Means for tightening closures attached by one or more members actuated to project behind a part or parts of the frame
Dispositif de securite a l'arrachement et a l'enfoncement d'une piece emmanchee dans une autre piece, et ensemble formant serrure de surete equipe de ce dispositif