Method of making plastic containers

Details Method of making plastic containers Method of making plastic containers

1975-07-28

1977-01-25

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264310, 264328, 264334, B29C 700

Patent

active

040051641

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: 2372177 (1945-03-01), Conner
patent: 3341644 (1967-09-01), Allen
patent: 3471896 (1969-10-01), Ninneman
patent: 3602946 (1971-09-01), Curetti
patent: 3634182 (1972-01-01), Biglin
patent: 3787159 (1974-01-01), Bielfeldt

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