Patent ID: 6905044

Claim:
A lid for covering a drinking cup containing a liquid, comprising: a top wall having a generally circular periphery; an annular sidewall downwardly depending from the top wall periphery; the lid including a drinking opening formed adjacent to the periphery; a regulator valve formed under the drinking opening, the regulator valve including: a first sidewall structure downwardly depending from the lid adjacent the drinking opening and terminating in a first bottom wall; a plurality of apertures formed in at least one of the first sidewall structure and the first bottom wall, wherein any of the plurality of apertures formed in the first sidewall structure are positioned in an opposing manner; a second opening formed in the first bottom wall; a second sidewall structure downwardly depending from the first bottom wall adjacent to the second opening and terminating in a second bottom wall; and at least one aperture formed in one of the second bottom wall and the second sidewall structure.