Patent ID: 8459486

Claim:
A lid for a container, comprising: a central portion for covering an opening of the container; a channel at a periphery of the central portion configured to form a substantially liquid-tight gasketless seal with the container, the channel including an inner skirt for contacting an inner surface of the container, an outer skirt for extending around an outside surface of the container and a wall connecting the inner skirt and the outer skirt; and an angled protrusion protruding from the inner skirt and being configured to form an interference fit with the inner surface of the container, wherein a substantial surface portion of an underside of the wall is configured to abut the container to form the substantially liquid-tight gasketless seal; a protruding ridge comprising substantially parallel ribs protruding from the outer skirt toward the inner skirt, wherein an upper edge of the protruding ridge is discontinuous; and a second protrusion on the inner skirt.