| 摘要 |
A liquid dispenser for a viscous liquid includes a hollow cylinder and a plunger axially slidably accommodated within the cylinder. The plunger has a tapered front section with an outer diameter at its rear end which is slightly smaller than the cylinder inner diameter, a drum-like intermediate section with a reduced outer diameter, and a cylindrical rear section with a maximum outer diameter which is slightly greater than the cylinder inner diameter, wherein these sections are axially aligned with, and connected to each other. The rear section has a plurality of resiliently deformable flap regions defined by, and between a plurality of axial slits in its outer surface.
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