Patent ID: 7608032
Filing Date: 2009-10-27
Classification: B65D,Y10S

Abstract:
1. A process for manufacturing a tamper evident container lid for use in covering a base container having a top rim, comprising the steps of: forming a paper sheet with a leading edge, a trailing edge, a top edge and a bottom edge, with a longitudinal score line extending generally from at least proximal the leading edge to at least proximal the trailing edge and a longitudinal fold line spaced from the score line extending generally from at least proximal the leading edge to at least proximal the trailing edge; convolute wrapping the sheet such that the leading edge is wrapped over the trailing edge and sealing a region of the sheet proximal to the leading edge over a region of the sheet proximal to the trailing edge to form the sheet into a skirt; attaching a lid body with the skirt to form a container lid; and folding a portion of the skirt below the longitudinal fold line inwardly and upwardly towards the lid body to form the skirt into an inner band positioned in generally opposing relation to an outer band defined between the longitudinal score line and the longitudinal fold line; wherein a plurality of sections of the inner band are adapted such that upon application of the container lid to the base container whereby the inner band is slid downwardly past the base container top rim, the inner band plurality of sections impede removal of the container lid from the base container by engaging with the top rim; wherein the plurality of sections are formed as interference members by pulling on the inner band at spaced intervals inwardly away from the outer band.