Method of automatic manufacture of closed, internally...

Details Method of automatic manufacture of closed, internally... Method of automatic manufacture of closed, internally...

B - Operations, Transporting

29

C

18/529

B29C 49/46 (2006.01) B29C 49/18 (2006.01) B29C 49/04 (2006.01)

Patent

CA 1042169

ABSTRACT OF THE DISCLOSURE The process of the invention essentially consists in supplying sterilegas to an extruded parison confined between the two shells of a mould, this sterile gas being sequentially applied at a first pressure slightly higher than atmospheric pressure at a second pressure much higher than the first pressure in order to inflate the parison and at a third pressure which is such lower than the second pressure and corresponds to the desired in- flating pressure of the hollow body to be formed.

220807

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