Patent ID: 6490990
Filing Date: 2002-12-10
Classification: B29C,B29L,B63B

Abstract:
Process for manufacturing floating bodies, comprising the combination of steps providing for:producing a first mandrel in the form of a preform, having substantially the external shape of the floating body to be manufactured; mounting the first mandrel on a winding apparatus and, optionally, subjecting it to a treatment of refining its external shape; covering the first mandrel, at least partly, by winding or filament winding resin-impregnated fibers so as to obtain an outer mold or countermold whose internal surface will undergo a treatment, forming the external surface of the floating body to be manufactured; after solidification, cutting the countermold into at least two demoldable portions; producing a second mandrel in the form of a preform, having substantially the internal shape of the floating body to be manufactured; mounting the second mandrel on a winding apparatus and, optionally, subjecting it to a treatment of refining its external shape; covering the second mandrel, at least partly, by winding or filament winding, with or without resin impregnation, in order to obtain a wound body which will be the floating body; putting the materials of the floating body between the second mandrel and the countermold under pressure; after solidifying the materials of the floating body disengaging the countermold and/or subjecting the floating body to a refining treatment, and cutting out at least one reservation in the latter.