Inwardly reformable endwall for a container and a method of pack

Details Inwardly reformable endwall for a container and a method of pack Inwardly reformable endwall for a container and a method of pack

1989-05-22

1990-11-06

Culver, Horace M.

Package making

Methods

With contents treating

53436, 53471, 53486, B65B 6124, B65B 5502

Patent

active

049675389

ABSTRACT:
This invention relates to an endwall for a container having a panel portion surrounded by a substantially vertical wall portion which terminates into a narrow rim. The rim is connected to a sidewall of the container. The wall portion extends outward from the container and is adapted to be reformed inwardly into the container in a controlled manner by an external mechanism to reduce the volume thereof after the container has been filled and sealed. The invention also relates to a method of packaging a product in a container having a body opened at one end and closed at an opposite end by an endwall as described above. The method includes the steps of filling the container with a product and sealing the open end, thermally treating the filled and sealed container, and reforming the endwall inwardly into the container. The sequence of steps can be rearranged.

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