Patent ID: 9334028
Filing Date: 2016-05-10
CPC Classification: B63B,Y10T

Claim Text:
1. An apparatus for sealing a hole in a wall, wherein said wall is a barrier between a first and second region, each region having a fluid pressure, the fluid pressure of the first region being greater than the fluid pressure of the second region, the apparatus comprising an elongate stem connected at one end to a sealing member which extends substantially radially from the major axis of said stem in an extended state such that, in use, the fluid pressure in the first region acts to seal the sealing member in the extended state against the wall, wherein said sealing member is resiliency deformable from said extended state into a collapsed state in which the sealing member is folded towards the stem, and into an everted state in which the sealing means is folded away from the stem.