Lid having a pre-venting lid lever and a seal arm assembly
Abstract:
A lid includes a lid lever and a seal arm assembly that stage opening of a vent hole relative to a drink hole so that vapor within the liquid container may be vented to the atmosphere before the drink hole is opened. As the lid lever is rotated a first direction, beginning from a closed position, the lid lever rotates a small amount independently of the seal arm assembly to open a vent hole before contacting the seal arm assembly to open a drink hole. As the lid lever is rotated in a second direction, from an open position, the lid lever and the seal arm assembly rotate in unison until the drink hole is closed.
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