发明名称 |
Compound layer resin bonded filter cartridge |
摘要 |
A hollow, cylindrical, resin-bonded filter cartridge has an inner, depth-type filter media with a graded density which decreases (becomes porous) in the radial direction from the inner surface to the outer surface. An outer strip of filter media is then wound in a spiral or helix around the inner filter media. The outer filter media is also a depth type of filter media and has uniform density and is wound with adjacent windings abutting one another such that a continuous groove or channel is provided along the length of the cartridge. The groove or channel provides a greater effective surface area on the outer surface of the filter cartridge. The outer strip of filter media preferably comprises a lengthwise-extending body panel with a pair of leaves extending along either edge of the body panel. The leaves are folded against the lower surface of the outer filter media to provide a multi-layer outer filter media structure.
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申请公布号 |
US5639370(A) |
申请公布日期 |
1997.06.17 |
申请号 |
US19960721928 |
申请日期 |
1996.09.27 |
申请人 |
PARKER-HANNIFIN CORPORATION |
发明人 |
FALL, RONALD E.;JAFARABADI, MEHRDAD;RUDDOCK, JOHN M. |
分类号 |
B01D29/11;B01D39/16;B01D46/24;(IPC1-7):B01D27/06 |
主分类号 |
B01D29/11 |
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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