| 摘要 |
A door seal structure for use with a door frame having a door movably attached thereto. The seal structure includes a pair of spaced inflatable seals mounted on the periphery of the door and positioned for sealing contact with the door frame when expanded under the influence of a suitable pressure fluid. There is a space between the inflatable seals and means for pressurizing the space to provide a pressure barrier between the seals. |
