Preform structure

Details Preform structure Preform structure

1981-08-10

1983-12-06

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Stretching or stretch forming

264322, 264325, 264DIG64, B29C 1703, B29C 300

Patent

active

044193190

ABSTRACT:
A multilayered preform is disclosed for making an open mouth container. The preform has a container-forming portion comprising a circular central area for making the bottom of the container, an annular sidewall-forming portion for the container surrounding add integral with the outer periphery of the central area, a flange connected to the annular portion, said flange having the contour of the rim of the container, said container-forming portion having a predetermined volume to meet dimensional requirements, and a retaining member having an enlarged portion. The preform is an improved structure that is readily adaptable for making containers from the so-called solid state pressure forming process.

REFERENCES:
patent: 3739052 (1973-06-01), Ayers et al.
patent: 4014970 (1977-04-01), Jahnle

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