LID HAVING CIRCUMFERENTIAL RIM WITH PLURALITY OF RIBS

摘要

A lid for securing to the brim of a container, the lid including a container closure having a disk shaped member with a periphery for mating with the brim of the container. The periphery includes annular inner and outer side walls with at least one annular rib disposed on each of the inner and outer side walls. The ribs of the annular walls form a gripping area to secure the lid to the container for preventing leaks and accidental spillage. A top wall interconnects the inner and outer side walls and includes visual cues for viewing the brim of the container when the lid is affixed to the brim. The lid additionally includes a pronounced wedge shaped sipping spout projecting upwards from the container closure. The container closure includes a circular indented channel for stacking one lid covered cup over another with additional stability provided by the sipping spout.

主权项

1. A container closure for sealing against a flat inner surface of a container comprising:
a disk shaped member including a circumferential rim extending about a periphery, the circumferential rim of the disk shaped member including an inner side wall, an outer side wall extending around the inner side wall, and an top wall interconnecting the inner side wall and the outer side wall; an indentation in the outer side wall forming a first rib having a generally convex profile that protrudes directly toward the inner side wall from the two flat surfaces; a second rib disposed along the inner side wall and having a generally convex profile with a first apex surface for sealing against the flat inner surface of the container, the second rib positioned proximate to a top portion of the inner side wall; and a third rib disposed along the inner side wall and having a generally convex profile with a second apex surface for sealing against the flat inner surface of the container while the first apex surface is sealed against the flat inner surface of the container, the third rib positioned below the second rib when the container closure has the top wall in an uppermost orientation; wherein the first rib is positioned higher than the third rib when the container closure has the top wall in an uppermost orientation.