| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a filter made of plastic, which can be used repeatedly, is environment-friendly, and of high precision, allowing a massive and effective production. <P>SOLUTION: The filter has a structure wherein the inner container 10 to contain a fluid including solid material such as powder temporarily is threadably and removably mounted on the outer container 30, and the filter separates the fluid 50 from an interspace between the inner container and the outer container into the fluid and the solid material. The inner container is formed with a surrounding wall 13 raised around the surrounding rim of a bottom plate 11 through a joint part 12. The outer side of the surrounding wall has an inner thread 14 which is threadedly engaged to the outer thread 31 formed on the inner side of the outer container. A hole 15 to filter a fluid is provided on the joint, and concavities and convexities 16 are formed on the lower side surface of the bottom plate. An outlet 32 is formed in the middle of the outer container and the outer bottom board 34 extending outward is formed outside the outlet. The outer surrounding wall 35 is raised around the rim of the outer bottom board and the inner container are located closely on the outer bottom board, so that the concavities and convexities formed on the bottom plate of the inner container can overlap the outer board. <P>COPYRIGHT: (C)2007,JPO&INPIT |
