Covess N.v.

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

L'air Liquide, S.a. Pour L'étude Et L'exploitation Des Procédés Georges Claude

Tony Vanswijgenhoven

Pascal Del-Gallo

Dieter Vanswijgenhoven

Axel Seifert

Ludo Van Schepdael

Johan De Clippeleir

Sébastien Goudalle

Philippe Papin

Pierre Blanc-Vannet

A method for producing a fibre composite cylindrical tank for containing a fluid, includes assembling a reusable and removable tool kit; applying an end fitting to the tool kit, the end fitting having an opening large enough for removing the tool kit there through after being disassembled; forming a barrier layer by swaddling the assembled tool kit with a breather piece; forming a first shell layer by winding a first composite tape, made of a first composite material mixing fibre and resin, over the barrier layer, and disassembling and removing the tool kit through the opening.

Method for producing a composite cylindrical tank and composite tank produced by this method

The present invention describes a method for producing a leak-tight vessel for holding a gas and/or liquid, comprising the steps of winding a heat-sealable thermoplastic barrier strip around a removable mandrel in such a way that each strip fragment overlaps with a substantially parallel strip fragment over at least a lateral overlapping distance, consolidating the overlapping strip fragments so as to form a gas and/or liquid tight layer, winding a fibrous material around the gas and/or liquid tight layer, thereby leaving an opening large enough for removing the mandrel. The invention also describes a leak-tight vessel produced in this way.

Method for producing a leak-tight vessel, and a leak-tight vessel

The present invention relates to a method for the manufacture of pressure-resistant gas and/or liquid tight containers made from thermoplastic materials. To this end the method comprises the following steps: providing a removable external mandrel around a neckpiece, followed by providing at the inside of such mandrel a thermoplastic material for the manufacture of a thermoplastic internal wall. Hereupon the external mandrel is removed and the thermoplastic internal wall is filled with a cooling liquid. Hereupon additional thermoplastic material is provided to the external side of the thermoplastic wall and is consolidated either during the provision hereof, or thereafter or both. Hereupon the cooling liquid is removed and the container is ready for being used.

Method for producing a pressure-resistant and/or leak-tight vessel for holding a gas and/or liquid

A plastic pressure vessel comprises a first () and a second part () welded to each other. The first part () comprises a layer () of thermoplastic material having substantially continuous fibres. The second part comprises a layered structure having an first () and a second () layer of thermoplastic material having substantially continuous fibres separated by a central () layer comprising thermoplastic material. The layer having substantially continuous fibres () of the first part extends over a length (d) sandwiched in between and connected with the first () and second () layer of thermoplastic material having substantial continuous fibres of the second part. Preferably the second part is provided with a slit () and the first part with a fitting protrusion, preferably with a bevelled end ().

Plastic pressure vessel for a fluid and method of manufacturing such a vessel

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Hasselt, Belgium

Tony Vanswijgenhoven