发明名称 |
Slotted screen scallops for high loading pressures and method of making same |
摘要 |
An elongated screen assembly, which in various forms, is useful as a scallop in a reactor, or as an underdrain for a gravity filter system, has a cross-section in a direction normal to its axis which is at least twice as wide as it is high. A method is also disclosed for manufacturing the screen assembly by pressing the opposed sides of a wrapped wire cylindrical screen assembly between a pair of plates which have radii of curvature which are different from each other and greater than the radius of curvature of the cylindrical screen assembly.
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申请公布号 |
US5015383(A) |
申请公布日期 |
1991.05.14 |
申请号 |
US19890366872 |
申请日期 |
1989.06.15 |
申请人 |
JOHNSON FILTRATION SYSTEMS INC. |
发明人 |
EVANS, THOMAS W.;NORELL, ROBERT G.;UBAN, STEPHEN A.;MAXSON, RICHARD C. |
分类号 |
B01J8/02 |
主分类号 |
B01J8/02 |
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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