Abstract: The device is applicable to the connection of two enclosures, each having a door closing and opening formed in a flange. One of the doors supports a rotary control member having three series of slots forming cams. V-shaped levers articulated to the doors simultaneously cooperate with slots and with the bolts in order to displace the latter between locking and unlocking positions under the action of rotating the member. The configuration of the slots makes it possible to control the locking of the doors to one another and to the flanges in a sequential manner. Preferably, the bolts are inclined in the direction aiding sealing.

Abstract: A transfer device between a container and a confinement enclosure comprises a chamber having an opening issuing to the outside and an opening issuing into the enclosure. These openings are closed by doors constituting with an external door and an internal door of the container, to double door transfer systems. In order to permit the engagement of the chamber door on the inner door of the container following the removal of the first double door, the opening is formed on a mobile skirt connected by a sealing bellows to the enclosure wall.