发明公开
EP0575315A1 SLOTTED SCALLOPS OR SIMILAR ARTICLES AND METHOD OF MAKING SAME
失效
开槽，拉长ABTRAPFSCHALE或类似的文章，及其制造方法。
- 专利标题： SLOTTED SCALLOPS OR SIMILAR ARTICLES AND METHOD OF MAKING SAME
- 专利标题（中）： 开槽，拉长ABTRAPFSCHALE或类似的文章，及其制造方法。
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申请号： EP91905107.0申请日： 1991-02-28
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公开(公告)号： EP0575315A1公开(公告)日： 1993-12-29
- 发明人: EVANS, Thomas, W. , NORELL, Robert, G. , UBAN, Stephen, A. , MAXSON, Richard, C.
- 申请人： WHEELABRATOR ENGINEERED SYSTEMS INC.
- 申请人地址： 1950 Old Highway 8 New Brighton, MN 55112 US
- 专利权人： WHEELABRATOR ENGINEERED SYSTEMS INC.
- 当前专利权人： WHEELABRATOR ENGINEERED SYSTEMS INC.
- 当前专利权人地址： 1950 Old Highway 8 New Brighton, MN 55112 US
- 代理机构： Newby, John Ross, et al
- 国际公布： WO1992015387 19920917
- 主分类号： B01D24
- IPC分类号： B01D24 ; B01D29 ; B01J8
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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