| 摘要 |
<p>Device for compensating pressure differences between the inside and the outside of an insulating glass frame, including a closed cylindrical hollow body (14) which is arranged, so that its axis is not horizontal, between the inside and the outside of an insulating glass frame (11). A ball (15) is movable within the body and has such a diameter as to be in contact with the wall, so as to fully separate the inside into two regions. At least one first hole (17) for connection to the outside/inside is located in a suitable wall portion affected by the passage of the ball, and at least one second hole (19,20) for connection to the inside/outside is located on the bottom (16). <IMAGE></p> |
