Apparatus for making a parison for blowmolding of a hollow artic

Details Apparatus for making a parison for blowmolding of a hollow artic Apparatus for making a parison for blowmolding of a hollow artic

1984-01-25

1986-01-28

Kratz, Peter

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Forming baffle, bottleneck, or handle

425529, B29D 2303

Patent

active

045668710

ABSTRACT:
The heated end of a parison is brought into a finish mold form to shape a finish profile suitable for setting up a closure. The parison is axially stretched by a stretch pin to pull out the heated plastic material adjacent the profile to a thinner cross section. This allows to obtain a considerable saving of weight of the plastic material.

REFERENCES:
patent: 3969060 (1976-07-01), Rosenkranz et al.
patent: 4065535 (1977-12-01), Legrand
patent: 4108937 (1978-08-01), Martineu et al.
patent: 4119394 (1978-10-01), Cary
patent: 4317793 (1982-03-01), Hubert et al.

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