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1. 发明授权

US4461945A Filter leaf and method and apparatus for making same 失效
标题翻译：滤叶及其制作方法及装置
公开(公告)号：US4461945A
公开(公告)日：1984-07-24
申请号：US177265
申请日：1980-08-11
申请人： Theodore H. O'Cheskey , Hugh T. Edwards, Jr.
发明人： Theodore H. O'Cheskey , Hugh T. Edwards, Jr.
IPC分类号： B01D29/11 , B23K26/08 , B23K27/00
CPC分类号： B23K26/0853 , B01D29/111
摘要： A filter leaf includes a continuous, elongated closure member, a first screen welded around its entire periphery to one side of the member, and a second screen welded around its entire periphery to the other side of the member to define a filtrate collection space between the two screens and the member. Means are provided for removing filtrate from the collection space. The filter leaf is made by clamping the closure member and one of the screens between two plates so the screen covers one side of the member and so the outer portions of the member and screen project outwardly from one of the plates. The outwardly projecting portions of the screen and member are irradiated with a laser beam to melt the screen and member to cause them to fuse together. The periphery of the outwardly projecting portions of the member and screen are moved relative to the laser beam while the member and screen are clamped together to form a continuous weld of the screen to the member around the entire periphery of the screen. The foregoing process is then repeated with a screen on the opposite side of the member so that an enclosed filtrate space is formed between the two screens and the interior wall of the member.
摘要翻译：过滤叶片包括连续的细长的封闭构件，围绕其整个周边焊接在构件的一侧的第一筛网，以及围绕其整个周边焊接到构件的另一侧的第二筛网，以在第二筛网之间限定滤液收集空间两个屏幕和会员。提供了用于从收集空间去除滤液的装置。过滤叶片通过将闭合构件和两个板之间的筛网夹紧而制成，使得筛网覆盖构件的一侧，因此构件和筛网的外部部分从其中一个板向外突出。用激光束照射屏幕和构件的向外突出的部分以熔化屏幕和构件以使它们熔合在一起。构件和屏幕的向外突出部分的周边相对于激光束移动，同时构件和屏幕被夹紧在一起以在屏幕的整个周边上形成屏幕到构件的连续焊接。然后通过在构件的相对侧上的筛网重复上述过程，使得在两个筛网和构件的内壁之间形成封闭的滤液空间。

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