| 摘要 |
A liquid dispenser metering valve, particularly for dispensing measured amounts of liquids from bottles, having a floatable ball in a metering chamber, a valve seat at the valve outlet on which the ball can seat, a biased normally closed cover extending over the outlet, a lever connected to the cover for actuating the cover to an open position, and a vent tube open to atmosphere at the valve housing and extending to the bottom of the liquid container to which the valve is connected.
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