Method and apparatus for sealing tamper-indicating tabs to a container sidewall

Abstract From the Canadian patent

A container with a heat-securable tamper-indicating wax-coated closure sheet is disclosed herein along with the, methods and apparatus for making same. The container comprises a base with a sidewall extending upwardly from the periphery of the base and defining a substantially circular open top or, mouth. A square-shaped sheet of flexible closure material is disposed over the rim of the mouth of the container and is engaged between the container rim and a superposed container lid. Each of the four corners of the sheet extend beyond the periphery of the lid to form tabs which project downwardly alongside the container sidewall and are heat-sealingly secured thereto. The method and apparatus …