| 摘要 |
<p>PCT No. PCT/GB91/00492 Sec. 371 Date Dec. 4, 1992 Sec. 102(e) Date Dec. 4, 1992 PCT Filed Mar. 28, 1991 PCT Pub. No. WO91/15704 PCT Pub. Date Oct. 17, 1991.According to a further aspect of the present invention there is provided a coupling comprising a male coupler and a female coupler including means for allowing transmission of fluid pressure between the couplers on the mating of the couplers, a first annular seal positioned in a recess in the body of the female coupler to provide a seal between the male and female couplers and extending around the periphery of the male coupler, an outer retainer engageable with the body of the female coupler, and inner retaining means supported by the outer retainer to maintain the first seal in position on withdrawal of the male coupler from the female coupler, the outer retainer accommodating a second annular seal which seals against and around the periphery of the male coupler, and the inner retaining means serving to keep the second seal in position.</p> |
