Process for manufacturing a fuel tank equipped with an internal accessory

A process for manufacturing a fuel tank equipped with an internal accessory and having a plastic wall produced from a parison, said process comprising the steps of:

• a) providing a mould comprising a cavity and at least one moving part, wherein when the mould is open, the moving part projects into the cavity and when the mould is closed, the moving part does not move so that it is retracted inside the mould in order that its end is able to conform to the internal surface of the cavity on which it is found when the mould is closed;
• b) introducing the accessory in the mould;
• c) introducing the molten parison into the mould such that the accessory is surrounded by the parison;
• d) sealing the lower and upper ends of the parison in a leaktight manner without welding;
• e) pressing the parison against the accessory using the moving part such that the accessory and parison become attached without piercing the parison;
• f) closing the mould;
• g) flattening the parison against the internal surface of the mould cavity using pressurized gas;
• and
• h) removing the tank from the mould.