| 摘要 |
A dispenser is provided that includes a hollow housing in which is mounted a disposable container that holds materials such as fluidic material to be dispensed. There is provided a service unit which consists of a package or bag holding the fluidic material and wherein the bag has an accordion type construction. The service unit includes a pump tube which is molded as part of the container, and a check valve forms part of the service unit, with the check valve being mounted on an end of the pump tube. An operating lever or mechanism is provided for selectively dispensing metered quantities of material from the accordion package.
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