Packaging machine

Details Packaging machine Packaging machine

1988-03-03

1989-06-13

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493164, 493183, B31B 164

Patent

active

048388475

ABSTRACT:
A packaging machine for preparing sealed containers filled with contents each from a blank having a thermoplastic synthetic resin layer over each surface thereof. The container is recessed in the central portion of its bottom so as to seat stably. A bottom forming end portion of the blank fitted around a mandrel is folded flat and then pressed against the forward end surface of the mandrel by a press member with its press face to form the bottom of the container. The mandrel end surface defines a cavity for recessing the bottom central portion, and a projection complementary to the cavity is provided on the press face of the press member.

REFERENCES:
patent: 2563619 (1951-08-01), Ringler
patent: 2996233 (1961-08-01), Craig et al.
patent: 3303761 (1967-02-01), Monroe et al.
patent: 3422730 (1969-01-01), Mitzelfelt et al.
patent: 3971300 (1976-07-01), Bachner

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