Abstract: An integrated assembly is described comprising a container and an elastic container lid. The container has an opening wall defining an opening of the container, with the opening wall having an outer peripheral surface. The elastic container lid is stretchably adjustable to cover the opening of the container, and includes a closure panel having a peripheral edge. According to the invention, a suitable adhesive is located along a predetermined portion of the outer peripheral surface of the opening wall of the container for securing a predetermined portion of the peripheral edge of the elastic container lid to the container. When the predetermined portion of the elastic lid is secured to the container in this manner, a free portion of the elastic container lid is foldable into a first portion leaving the opening of the container substantially unsealed, a second position leaving the opening of the container partly sealed and a third position wherein the container opening is sealed.

Abstract: Methods and apparatus are disclosed for a lid for use in closing container openings on a range of containers having openings of different sizes. One method includes the steps of selecting an elastic material and forming the lid out of the elastic material with a closure panel and a gripping zone along the periphery of the closure panel. The lid is made of a size which is smaller than the smallest size container opening so that the lid is resiliently stretched to be fitted over any of the container openings for the resiliency of the lid to keep it engaged with any of the containers over such an opening. The size of the lid and the elasticity of the material are selected in relation to the anticipated sizes of the openings so that the resiliency of the material of the lid will be sufficient to provide a sealing engagement with any of the containers. The invention further provides a lid constructed in accordance with the above method.