US Patent 9533817 Self air evacuating system

In combination with a container having predetermined shape, the improvement comprising an apparatus for evacuating air from the container and for sealing the container so as to prevent air from returning in order to better preserve contents of the container. The apparatus includes a lid member for insertion into such container, the lid member having each of a predetermined shape and a predetermined size and formed of a predetermined material and at least one rim member formed on an outer edge of the lid member for contacting an inside wall of the container. The at least one rim member being sufficiently thin so as conform to the inside walls of said container.