UPRIGHT/INVERTED SPRAYER

摘要

A manually actuated liquid pump sprayer is capable of use in both upright and inverted positions without leakage through the vent port by the provision of an auxiliary inlet passage including an inlet port in the path of a slider valve. In accordan ce with one embodiment a vent port is likewise located in the path of that slider valve. The vent port is open while the inlet port is closed while the slider valve is in the upr ight attitude of the sprayer, while the converse is effected by the slider valve when operatin g the sprayer in an inverted position. In accordance with another embodiment a second slider valve is located within the pump body for uncovering the vent port which is in the pump cylinder in the upright position of spray, and for uncovering that vent por t in the inverted position to avoid leakage.