Device for detecting whether the connection between the elements of a device for the sealed connection of two chambers isolated from the external medium is sealed

A device for detecting whether the temporary connection between the elements of a device for the sealed connection of two chambers isolated from an external medium is sealed, in which said device comprises:

• each chamber has at least one access opening equipped with a door cooperating, with the interposition of sealing means, with a flange forming a stationary frame, one of the doors being articulated to its flange;
• each of the doors having means of locking to their respective flanges and complementary connecting means which, before the contents of one chamber have been transferred into the other chamber, and while the flanges are locked together in a sealed manner, allow the doors to be connected thereby forming, through contact of sealing means, an internal space isolating their faces, now in contact, from the external medium;
• and,
• a source of vacuum,
• wherein a groove is formed in the flange of a first of the chambers, the groove abutting against, and facing, the flange of the second of the chambers and being wholly spaced from the internal space, the groove being in communication with the source of vacuum via a network of ducts formed in the flange of the first chamber.