发明名称 |
Hub ring and supporting plate for a filter and methods for manufacturing these members |
摘要 |
Disclosed is a hub ring for a filter wherein a supporting member having a plurality of supporting portions is interposed between a pair of keep plates, a supporting plate for a filter wherein a plurality of wave portions extending substantially in the circumferential direction are arranged in the radial direction, and methods for manufacturing these members. The hub ring has a great opening ratio to achieve a low pressure loss property and causes substantially no residence of polymer, and the hub ring can be manufactured at a low cost. The supporting plate has high pressure resistance, low-pressure loss property, good directivity of polymer flow and excellent polymer mixing effect, and it is suitable for use as a retainer disposed inside of a filter.
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申请公布号 |
US5829138(A) |
申请公布日期 |
1998.11.03 |
申请号 |
US19970936287 |
申请日期 |
1997.09.24 |
申请人 |
NAGASE & CO., LTD.;KABUSHIKI KAISHA TOUKAI SPRING SEISAKUSHO |
发明人 |
YASUE, SYOICHI;MURAKAMI, KEIICHI |
分类号 |
B01D25/00;B01D25/26;B01D29/11;(IPC1-7):B23P15/16 |
主分类号 |
B01D25/00 |
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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