Patent ID: 7563092

Claim:
A blow-molding system able to convey a blow-molding fluid at high pressure into a thermoplastic parison which is supported, in a blow-molding mold, by its neck emerging from a wall of the mold, said system comprising a stationary tubular body which is in communication with a source of high-pressure fluid and which, at its lower end, coaxially and slidably supports movable equipment comprising a blowing nozzle able, in the blowing position, to be placed in sealed communication with the neck of the parison, the nozzle being laterally defined by a terminal part, in the form of a sleeve, of the movable equipment, the tubular body having a transverse face which lies a fixed distance from the aforementioned wall of the mold, wherein the wall of the nozzle is formed by said transverse wall of the tubular body, and wherein the lateral interior wall of the sleeve is shaped in such a way that fluid pressure inside the nozzle does not generate, on said lateral wall, a reaction force component directed away from said wall of the mold.