Device for sealed transfer between two enclosed volumes, featuring secure opening

A sealed transfer device between two enclosed volumes, comprising:

• a first and a second flange that define a passage opening into the enclosed volumes, said first and said second flange being able to be secured to one another by a first bayonet connection,
• a first and a second door that close off the passage openings, it said first and said second door being able to be secured to one another by a second bayonet connection,
• the first door being hingedly mounted on the first flange by means of a hinge, said hinge comprising a hinge pin,
• a control mechanism comprising a control member movably mounted on the first flange between a closed position in which the first door closes off the associated passage opening and an open position of the first and second doors secured to one another,
• characterized in that the control mechanism comprises a locking member for locking the second door to the first door, ensuring that the doors are locked together when the control member switches into the open position of the first and second doors, said locking member being integrated into the first door;
• and
• characterized in that the locking member for locking the second door to the first door comprises a locking finger that extends toward the passage opening and is radially movable between a position in which it is recessed within the first door and a position for locking the doors together in which it projects radially from the first door.