Coupling means for an installation for refrigerating containers

摘要

Coupling means for an installation for refrigerating containers and intended to provide a seal for a flow of cold air between a refrigeration system and containers to be refrigerated comprises a double sleeve 22, 24 which forms an annular space housing an inflatable envelope 30. A movable portion 60 is displaceable axially by the envelope 30, while still being guided by the sleeves, so as to be applied by way of a sealing joint 38 against the wall 14 of the container, around an opening 16 in the wall thereof.