Patent ID: 7494025

Claim:
An internal cover for enclosing the contents of a straight walled container comprising: a body having a diameter sized to be equivalent to a container inside surface, said body has a disc like shape with flat surfaces extending generally horizontally when the internal cover is placed within an upright straight walled container, said body has at least one air vent opening, means for sealing the body to an inside surface of a straight walled container, a bail handle rotatably attached to said body, and a valve integrally formed within said body and said handle permitting the cover to be inserted into a container until resting on top of the contents and sealing the cover in place with the valve, the valve having at least one valve bore defined by said bail handle, wherein when the handle is in a vertical position the valve is open aligning the at least one valve bore with the at least one cover air vent opening and the valve is closed when the handle is rotated flat against at least one of said flat surfaces of the body.