Mold for thermal conditioning a thermoplastic parison

Details Mold for thermal conditioning a thermoplastic parison Mold for thermal conditioning a thermoplastic parison

1976-12-06

1978-05-02

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

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

With heating or cooling means

425528, 425533, B29D 2303

Patent

active

040872270

ABSTRACT:
An improved shell mold and method are provided for thermal conditioning a thermoplastic parison prior to blow molding the parison into a hollow container and especially a biaxially oriented container. The mold has an inner shell and an outer shell defining a passageway therebetween for a circulated heat transfer fluid. Heat transfer between the fluid and the parison is controlled to adjust the thermal history at different locations of the parison as it will be required by the mode of stretching and the blow out ratio at the different locations.

REFERENCES:
patent: 3191225 (1965-06-01), Polka
patent: 3768948 (1973-10-01), Horberg, Jr. et al.
patent: 3930779 (1976-01-01), Farrell
patent: 3940231 (1976-02-01), Uhlig
patent: 3989784 (1976-11-01), Uhlig

Affiliated with

Also associated with

Rating

Mold for thermal conditioning a thermoplastic parison does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold for thermal conditioning a thermoplastic parison, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold for thermal conditioning a thermoplastic parison will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2156294