| 摘要 |
Methods and apparatus are provided for securely blocking and sealing an access corridor to a secure facility. The exemplary system includes a penetration resistant door disposed in a passage intersecting the access corridor, and dividing it into first and second sides. An actuating mechanism translates the door within the passage between an open position in which the corridor is unblocked, and a closed position in which the corridor is blocked by the door. A locking system is configured to push the door toward one side of the access corridor when the door is in the closed position, compressing a seal disposed between the door and the passage wall, and sealing the first side of the access corridor from the second side. |
