Patent ID: 8435024

Claim:
Device for blowing and stretching a plastic parison for obtaining a container, comprising: a blowing nozzle having a first end to be applied to an inlet of said parison, said first end emerging in a controlled-contamination environment wherein said parison is blown, said controlled-contamination environment being isolated from a contaminated area; a stretching rod passing through said blowing nozzle; means for activating the insertion/extraction of the stretching rod in/out of the parison through said inlet; means for injecting mid and high pressure air in said parison through said blowing nozzle, characterised in that it comprises a case secured to a second end of the blowing nozzle and defining a chamber for housing, at least partially, the stretching rod, said chamber being tight-sealed relative to said contaminated area so that the whole stretching rod avoids to come in contact with said contaminated area, said activating means being located outside said controlled-contamination environment.