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(11) | EP 0 875 296 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Upright/inverted sprayer |
| (57) A manually actuated liquid pump sprayer is capable of use in both upright and inverted
positions without leakage through the vent port (35) by the provision of an auxiliary
inlet passage including an inlet port (38) in the path of a slider valve (39). In
accordance with one embodiment a vent port is likewise located in the path of that
slider valve. The vent port (35) is open while the inlet port (38) is closed while
the slider valve (39) is in the upright attitude of the sprayer, while the converse
is effected by the slider valve (39) when operating the sprayer in an inverted position.
In accordance with another embodiment a second slider valve (75) is located within
the pump body for uncovering the vent port (58) which is in the pump cylinder in the
upright position of spray, and for uncovering that vent port (58) in the inverted
position to avoid leakage. |