Apparatus for sealing a hole in a lining or wall

Abstract

The present invention relates to an apparatus (2) for sealing a hole or tear in a wall or lining, the apparatus comprising: a plug element in the form of a planar cover (4) having a threaded shaft (6) extending from a first surface in a direction normal to the first surface; a first planar sealing element (8) having an opening configured to receive the threaded shaft; a second planar sealing element (10) having an opening configured to receive the threaded shaft; a rigid planar clamping element (12) having an opening configured to receive the threaded shaft; and a cap element (14) having a threaded opening configured to receive the threaded shaft; wherein the cap element is further configured, upon rotation of the cap element causing the threaded opening to travel along the threaded shaft towards the planar cover of the plug element, to cause the rigid planar clamping element to apply pressure to the first and second sealing elements and thereby form a seal. Methods for applying the disclosed apparatus and an alternative apparatus using tightening mechanisms other than screw thread are also disclosed.

Dependencies are inferred from the claim text.