| 摘要 |
<p>To separate two adjoined sealed enclosures (10a, 10b) communicating permanently by a passage (12) of any shape and size, a double door (18) made up of two doors (20a, 20b), joined together beforehand are introduced into the enclosures through an opening (22). Each door comprises a frame carrying an inflatable seal at its periphery, and a disc-shaped leakproof membrane attached to the seal. The two doors (20a, 20b) are connected by an adhesive device isolating the space which separates them from the interior of the enclosures (10a, 10b). If the dimensions of the opening (22) are smaller than those of the passage (12), a folding double door (18) is employed. <IMAGE></p> |
