| 摘要 |
<p>PCT No. PCT/GB94/02622 Sec. 371 Date May 31, 1996 Sec. 102(e) Date May 31, 1996 PCT Filed Nov. 30, 1994 PCT Pub. No. WO95/15600 PCT Pub. Date Jun. 8, 1995A device for forming a seal around an elongate object having: (a) a sealing plate having a hole through which the object can pass, and containing a chamber in communication with the hole; (b) a pressure plate positioned within and movable relative to the chamber; and (c) a sealing material positioned within the chamber such that when the elongate object passes, in use, through the hole in the sealing plate, the sealing material is positioned between the pressure plate and the elongate object, wherein the pressure plate can be moved, in use, towards the object in a direction transversely of the object, to urge the sealing material into sealing contact with the object.</p> |
