发明名称 |
Filter means |
摘要 |
A filter means for filtering fluid comprises a first filter section and a second filter section. The filter means is formed by using a folded sheet material having a trapezoid or a sector form. The second filter section of the filter means has a filtering performance different from that of the first filter section of the filter means.
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申请公布号 |
US4439321(A) |
申请公布日期 |
1984.03.27 |
申请号 |
US19820388169 |
申请日期 |
1982.06.14 |
申请人 |
NIPPONDENSO CO., LTD. |
发明人 |
TAKI, YOSHIHIRO;AKADO, HAJIME;FUKUTA, TOSHIAKI;MIYAKAWA, SUSUMU |
分类号 |
B01D46/52;(IPC1-7):B01D27/06;B01D50/00 |
主分类号 |
B01D46/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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