Heat sealing thru food contaminants

摘要

A container is provided with a flange defining a container opening that may help expunge food product as the film and seal head comes down on the container flange. The flange of the container opening has a predetermined angle. The container flange with its sealing surface generally deflects or angularly pivots when sealed with the film during the sealing process. The container flange and film may push product contamination from the sealing surfaces inwardly into the container. The flange may be continuous about the periphery of the container opening.

主权项

1. A container and sealing member assembly for displacing contaminants from between the sealing surfaces between said container and said sealing member comprising:
a sealing member, wherein said sealing member is substantially planar; a container having an opening surrounded by a rim, at least a portion of said rim having a pivoting flange projecting therefrom; and said pivoting flange having an inner edge and an outer edge, said inner edge is positioned at said opening and is at a smaller radius than said outer edge relative to said container opening, and said outer edge is positioned above said inner edge relative to said container opening, whereby said flange between said inner edge and said outer edge pivots when said sealing member progressively adheres from said outer edge of said flange to said inner edge of said flange.