| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cartridge, which meets a demand for an air venting capability and for a processing and filling of a content as simple and quick as possible. <P>SOLUTION: The cartridge has a piston consisting of two portions, such as a piston portion 2 and a cover portion 3. The cover portion 3 keeps closing an air vent passages 4, 5 permanently after air is vented from the piston. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
