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1. 发明授权

US4925561A Composite planar and triangularly pleated filter element 失效
标题翻译：复合平面和三角褶皱滤芯
公开(公告)号：US4925561A
公开(公告)日：1990-05-15
申请号：US330464
申请日：1989-03-30
申请人： Yoshio Ishii , Shigeru Okaya
发明人： Yoshio Ishii , Shigeru Okaya
IPC分类号： B01D46/12 , B01D46/24 , B01D46/52
CPC分类号： B01D46/528 , B01D46/2451 , B01D46/2455 , B01D46/2474 , B01D2046/2477 , B01D2046/2481 , B01D2046/2488 , B01D2275/206 , Y10S55/12
摘要： A filter element comprises at least two pleated filtering mediums and at least one roughly flat filtering medium interposed between the pleated filtering mediums. Each pleated filtering medium has an end constituted by edges of triangular bottom sections and the other end constituted by edges of triangular top sections. The triangular bottom sections of one pleated filtering medium is bonded to the flat filtering medium only at and near the edges of the bottom sections. The triangular top sections of the other pleated filtering medium is bonded to the roughly flat filtering medium only at and near the edges of the top sections. Spacers are provided between the top sections and the flat filtering medium and between the bottom sections and the roughly flat filtering medium. Such spacers may be constituted by alternate small ridges and grooves formed in the roughly flat filtering medium.
摘要翻译：过滤元件包括至少两个褶皱过滤介质和介于褶皱过滤介质之间的至少一个大致平坦的过滤介质。每个褶皱过滤介质具有由三角形底部部分的边缘构成的端部，另一端由三角形顶部部分的边缘构成。一个打褶过滤介质的三角形底部部分仅在底部部分的边缘处和附近结合到扁平过滤介质上。另一个褶皱过滤介质的三角形顶部部分仅在顶部部分的边缘处和附近结合到大致平坦的过滤介质上。间隔件设置在顶部部分和扁平过滤介质之间以及底部部分和大致平坦的过滤介质之间。这种间隔物可以由形成在粗糙平坦的过滤介质中的交替的小脊和凹槽构成。

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