Equipment for forming temporary connections for the transfer of objects between discontinuous confined volumes

Equipment for forming connections between discontinuous confined volumes, comprising;

• an isolating chamber with an annular connector defining an access opening with an internal wall of constant section, and with one dimension greater than another dimension perpendicular thereto;
• a closure piece, said constant section of said internal wall allowing the sliding of said closure piece within said access opening, said closure piece including an annular structure, two comparatively soft concentric annular bushings, a first bushing of said annular bushings being designed to form a seal with said inner wall and having an adhesive peripheral frontal surface, an annular cutting means placed between said concentric annular bushings and designed to project from said concentric annular bushings when said bushings are compressed frontally from the outside and a first membrane for closing off the isolating chamber, peripherally anchored to said adhesive peripheral frontal surface, and having on an outer surface an adhesive peripheral annular ring corresponding to the frontal surfaces of said two concentric annular bushings;
• a transfer machine including a frame defining a passageway slot and having an annular frontal surface corresponding to that of said annular bushings and having an intermediate annular groove designed to cooperate with said annular cutting means and separating two concentric annular zones in said annular frontal surface, a transfer machine membrane for closing the transfer machine, said transfer machine membrane being engaged on an outer peripheral zone which is made of adhesive provided on said annular frontal surface, an adhesive peripheral annular ring on an outer surface of said transfer machine membrane;
• an additional closure piece, positioned in said transfer machine, for the closing of said access opening in the annular connector, whereby said isolating chamber and said transfer machine may be joined at said first membrane and said transfer machine membrane which adhere to each other by means of their respective adhesive peripheral annular rings to form joined membranes and said joined membranes are cut by said annular cutting means to define with said membranes a discoid with at least two peripherally joined thicknesses, which can be removed into one of said isolating chamber and said transfer machine to provide the passage between the two said confined volumes.