Patent ID: 8677691

Claim:
A sealing device, including: a base body suitable for sealing an opening, movable between an open position and a closed position, a pushing element having first and second ends, and a first configuration and a second configuration, the first configuration being a slack configuration with respect to the second configuration, which second configuration is a tensioned configuration with respect to the first configuration, the first end of the pushing element being connected to the base body, wherein the sealing device also includes a linking element having a first end translationally fixed to the base body and a second end translationally fixed to the second end of the pushing element, as well as a bearing member adapted to bear on a wall surrounding the opening when the base body is moved between the closed position and the open position and vice versa, during which movement the linking element moves the pushing element from the second configuration to the first configuration and vice versa, the bearing member being out of contact with the wall of the opening when the base body is in the open position, and the bearing member coming into contact with the wall when the base body is in an intermediate position.