Patent ID: 7328820
Filing Date: 2008-02-12
Classification: B65D

Abstract:
1. A vented closure for allowing a user to repeatedly drink liquid from a container, comprising: a base collar engagable with the container and having an upright mouthpiece with an outlet aperture to dispense the liquid from the container, the collar including at least one vent aperture of a small size, a primary fluid passageway extending from the outlet aperture and through the base collar to an interior of the container for conveying the liquid to the outlet aperture, a secondary fluid passageway at least partly separate from the primary fluid passageway and extending from the vent aperture to the interior of the container for conveying venting air into the interior of the container, a cap having a closed position which partly covers the collar and blocks at least the outlet aperture to prevent dispensing of the liquid, a hinge or pivot movably connecting the collar and cap to allow the cap to move about one side of the collar to an open position along an axis which intersects the hinge or pivot and away from the mouthpiece, the collar including a wall located generally opposite the one side which extends upwardly to mate with an edge of the cap when in the closed position, the wall including an offset portion forming a grip area for a user's thumb or finger to move against and flip open the cap to move about the axis to the one side, the grip area being located at an offset angle from the axis which intersects the hinge or pivot, whereby an opening force from the user's thumb or finger is offset from the axis which intersects the hinge or pivot.