Importance

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Abstract

A sealing member in the form of a plate (15) for a connection piece or a similar connection part for a conduit for liquid or gas on a container comprises a portion with a number of sheet elements (15b-15f) having a shape resembling a U-beam and comprising a web part (15'b-15'f) and flange parts (15'b-15'f). The web part of such a sheet element is arranged to constitute part of the flat sides (18, 19) of the plate, and each flange part of such a sheet element is arranged close to a flange part of an adjoining such sheet element or close to a flange part (15'a-15'g) of another sheet element (15a, 15g) located outside said portion and otherwise comprising a part (15'a, 15'g) arranged to constitute a part of the flat sides of the plate. Flange parts arranged adjacent to each other are connected by a hinge (21) at those edges of the flange parts which are facing away from the flat sides of the plate, the plate thus being foldable. On that flat side (19) of the plate where the flange parts are located, there is fixed a rubber bladder (16) connectible to a pressure medium, the plate being unfoldable by means of said bladder by the supply of a pressure medium to the bladder. In pressurized state the bladder is utilized as a supplementary seal inside the plate in the connection piece. The anchoring of the plate in the connection piece can be strengthened by a mechanical anchoring device arranged inside the bladder in the connection piece.

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First Claim