| 摘要 |
A fluid dispenser having a hand operated valve has a pulsator for discharging sequential pulses of liquid when the valve is open. The pulsator has a liquid diverter that directs several streams of liquid toward an impeller for rotating the impeller. The impeller has a fluid blocking plate that sequentially interrupts the flow of liquid through the fluid dispensing orifices located in a head located adjacent the impeller.
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