Apparatus and method for rimming containers

Details Apparatus and method for rimming containers Apparatus and method for rimming containers

1986-01-31

1987-07-14

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493158, 425394, B31B 128

Patent

active

046800166

ABSTRACT:
This invention relates to improved apparatus and method for forming the rim portion of frustoconically-shaped containers, preferably formed of paper or thermoplastic material. The invention is especially adapted to forming the helicoidal rim on the mouth of drinking cups as well as other types of frustoconical-shaped containers. The container sidewalls adjacent the open mouth are fully supported during rimming to provide stronger and more dimensionally accurate, uniform rims on such containers.

REFERENCES:
patent: 2017018 (1935-10-01), Seastrom
patent: 2278299 (1942-03-01), Barbieri
patent: 2778287 (1957-01-01), Moore
patent: 2819658 (1958-01-01), Scott et al.
patent: 3468226 (1969-09-01), England et al.

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