| 摘要 |
A foam dispenser for dispensing a liquid with a foam consistency includes a container which is constructed and arranged to hold a volume of liquid and a pump assembly which is connected to the container. The pump assembly includes an actuator defining a foam-dispensing outlet, a collar constructed and arranged to connect to a portion of the container, the collar receiving the actuator, a body defining an air chamber and a liquid chamber, a foamer housing received by the actuator and including a mesh screen, an air piston received by the air chamber, a plunger extending through a portion of the air chamber into the liquid chamber, a movable valve pin received by the plunger, an air valve received by the piston and being constructed and arranged to control the flow of replacement air into the air chamber, and a liquid flow control structure received by the body and cooperating with the volume of liquid for controlling the flow of replacement liquid into the liquid chamber.
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