Patent ID: 8695203

Claim:
A process for manufacturing a plastic fuel tank (FT) equipped with an internal accessory, by molding a parison using a mold comprising two cavities and a core, said process comprising: introducing the parison into the mold cavities; introducing the core inside the parison, said core having first been fitted with the accessory; closing the mold so that the cavities come into leaktight contact with the core; pressing the parison against the cavities by at least one of blowing through the core and applying a vacuum behind the cavities; fastening the accessory to the parison by snap riveting using a device attached to the core; opening the mold to withdraw the core; and carrying out the final molding of the parison by at least one of blow molding and thermoforming, wherein the accessory comprises an orifice for the snap riveting and at least one protuberance, for which its constituent material, its dimensions and its position are such that during the fastening of the accessory by snap riveting, said protuberance at least partially melts to form a local weld which is at another location than the obtained rivet so that two different attachment points are obtained.