Apparatus for injection molding of plastic preform

Details Apparatus for injection molding of plastic preform Apparatus for injection molding of plastic preform

1983-04-11

1984-09-18

Silbaugh, Jan

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

264 28, 264237, 26432814, 26432816, 425547, 425552, B29F 100, B29D 2302

Patent

active

044721315

ABSTRACT:
A method for the fabrication of a plastic preform suitable for use in the preparation of biaxially oriented hollow articles is described wherein the duration of the preform injection molding cycle is reduced, thereby enhancing the productivity of the injection molding step. This end is attained by injection molding and cooling, and supercooling and conditioning simultaneously at a single station of an injection molding machine at different positions within the station.

REFERENCES:
patent: 3785116 (1974-01-01), Munz et al.
patent: 3819314 (1974-06-01), Marcus
patent: 3998577 (1976-12-01), Farrell
patent: 4065246 (1977-12-01), Marcus
patent: 4201535 (1980-05-01), Ninneman
patent: 4205950 (1980-06-01), Suss et al.
patent: 4209290 (1980-06-01), Rees et al.
patent: 4285657 (1981-08-01), Ryder

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