Patent ID: 8608017

Claim:
A drinking container comprising: a main body defining an interior cavity with an opening at an upper end of the main body, the main body having a rim about the upper end; and a removable lid secured to the rim of the main body to enclose the interior cavity and form a seal, the lid having a drinking spout sized to be received within a human mouth, and a plurality of unrestricted apertures formed in the drinking spout providing communication between an exterior of the main body and the interior cavity, the plurality of apertures configured to permit not more than three drops of leakage of potable water from the interior cavity through the apertures over a ten second interval under a quasi-static head of about two vertical inches of potable water over inner ends of the apertures and no vacuum applied to the spout with the container inverted, and to dispense an aggregate of at least 1.3 grams of potable water from the spout over a ten second interval with a steady vacuum of 0.27 Bar below atmospheric pressure applied at outer ends of the apertures and about two vertical inches of potable water over the inner ends of the apertures with the container inverted.