| 摘要 |
<p>A pipe seal comprising a main body portion adapted to be fixed to a wall, the wall comprising a plurality of wall members having an interstitial space, a part spherical seal body mounted for rotational movement within the main body, the part spherical body including a seal adapted to deform and engage a pipe, the seal including a member including an aperture, the seal body including a conduit communicating between the aperture and clamping means, the clamping means being adapted to connect the pipe seal to said wall members so that the conduit communicates with said interstitial space.</p> |
