Collapse-resistant corrugated filter element
    5.
    发明公开
    Collapse-resistant corrugated filter element 失效
    RohrförmigerFaltenfilterfürHochdruckfiltration。

    公开(公告)号:EP0003959A1

    公开(公告)日:1979-09-19

    申请号:EP79100139.9

    申请日:1979-01-18

    申请人: PALL CORPORATION

    发明人: Pall, David B.

    IPC分类号: B01D27/06

    摘要: A corrugated tubular filter element (1) is provided, resistant to corrugation collapse under high differential pressure, although formed of filter sheet material susceptible to such collapse, comprising, in combination, filter sheet material (2) enclosed in a dual layer of more open foraminous sheet material and formed in a closed corrugated configuration having axial corrugation folds arranged in groups (4) with adjacent side surfaces in supporting contact with each other; and, interposed between said groups, solid wedge support elements (10) extending axially of the corrugation folds from end to end of the element having side surfaces in supporting contact with external side surfaces of the end folds of each group, substantially filling the spaces between the end folds of adjacent groups, and confining the folds of each group in substantially parallel array against lateral movement; and a foraminous support sheath (15,16) disposed at least one of externally and internally of the filter sheet material in supporting contact with adjacent fold ends and retaining the wedge support elements and folds against one of outward and inward movement.

    摘要翻译: 提供了一种波纹管状过滤器元件(1),其在高压差下抵抗波纹塌陷,尽管由易于发生这种塌陷的过滤片材料形成,但是组合在一起,包括封闭在更开放的双层中的过滤材料(2) 多孔片材,并形成为具有轴向波纹折叠的封闭的波纹形状,所述轴向波纹折叠布置成组(4),相邻的侧表面彼此支撑接触; 并且介于所述组之间,固定的楔形支撑元件(10)从所述元件的端部到端部的所述元件的端部轴向延伸,所述侧面具有与每个组的端部折叠的外侧表面支撑接触的侧表面, 相邻组的端部折叠,并且将每个组的折叠限制为基本平行的排列以抵抗横向运动; 和多孔支撑护套(15,16),其设置在过滤片材料的外部和内部中的至少一个与邻近的折叠端部支撑接触并且保持楔形支撑元件并且折叠抵抗向内和向内运动中的一个。

    Filter cartridge with castellated support and process of making the same
    10.
    发明授权
    Filter cartridge with castellated support and process of making the same 失效
    带盒式过滤器的过滤器及其制造方法

    公开(公告)号:EP0044042B1

    公开(公告)日:1986-01-29

    申请号:EP81105351.1

    申请日:1981-07-09

    申请人: PALL CORPORATION

    发明人: Pall, David B.

    IPC分类号: B01D27/00 B01D27/08 B01D29/14

    摘要: A filter cartridge is provided comprising, in combination: (1) a filter sheet material formed in a tube open at at least one end; (2) a support such as an internal core or external sheath disposed in supporting relation to and substantially coextensive with the tube and supporting the filter sheet material of the tube; (3) the support having one end at the open end of the tube formed in a castellated configuration in which at least some of the castellations define grooves therebetween, preferably having reentrant sides; and (4) at least one end cap attached to and extending across the open end of the tube of filter sheet material, and having embedded therein at least the castellated end of the support, with end cap material extending into and substantially filling the grooves, thereby fixedly attaching the end cap to the support in a leak-tight seal.