| 摘要 |
A pump dispenser for dispensing a liquid product from a container includes an inlet valving arrangement, a plunger and piston arrangement, an outlet valving arrangement and a dispensing nozzle. The dispensing nozzle is a snap-together combination of a unitary, molded plastic nozzle body and a unitary, molded plastic outlet member. The nozzle body defines an exit passageway for the liquid product being dispensed from the container. The outlet member includes an outlet opening and a weir which is positioned between the outlet opening and the exit passageway. Use of the weir affects the exit velocity of the product being dispensed and also provides a barrier so as to prevent remainder or residual product from seeping into or around the outlet opening where it might coagulate.
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