Apparatus for making plastic containers

Details Apparatus for making plastic containers Apparatus for making plastic containers

1975-02-12

1976-07-13

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425245R, 425324B, B29D 2302

Patent

active

039690580

ABSTRACT:
Methods of and apparatus for making plastic containers with integral rims, utilizing a transfer ring means having an aperture and an annular groove, in which the aperture is closed to define a space for reception of thermoplastic material, which is compressed to form it into a diaphragm with the material filling said groove forming the rim of the diaphragm, the transfer means carrying the diaphragm is positioned on a mold having a cavity corresponding to the shape of the container, the diaphragm is formed into a container in the mold cavity, and the container is removed from the transfer means with the rim of the diaphragm as molded in said groove intact with the container and forming the rim of the container.

REFERENCES:
patent: 3018519 (1962-01-01), Morin
patent: 3341644 (1967-09-01), Allen
patent: 3471896 (1969-10-01), Ninneman
patent: 3566442 (1971-03-01), Hakala
patent: 3602946 (1971-09-01), Curretti
patent: 3868202 (1975-02-01), Valyi

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