| 摘要 |
A hand-held dispenser for dry granular materials consists of a reservoir for the material, a removable telescoping rigid tube assembly, and a flexible valve assembly at the bottom of the tube assembly which allows passage of material when the inner tube is pushed into the outer tube. The reservoir includes a handle which allows the apparatus to be hand-held with the valve assembly end pointed downward. The inner tube is rigidly attached to the removable reservoir and can be pumped up and down to a pair of stops to dispense a measured amount of material at the bottom end of the telescoping tubes. The flexible valve can be constructed of a rubber sheet with radial fingers or spring loaded closure which will flex open to dispense material when the inner tube is pushed downward, but will not allow material to flow by gravity alone.
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