公开(公告)号：US20140076792A1

公开(公告)日：2014-03-20

申请号：US14026945

申请日：2013-09-13

Applicant: Twothirds Water Inc.

Inventor： Bradley S. Pierik ,  Kevin T. Reilly ,  Ronald J. Pierik

IPC: B01D61/14

CPC classification number: B01D61/142 ,  B01D61/18 ,  B01D63/02 ,  B01D65/02 ,  B01D2313/10 ,  B01D2313/13 ,  B01D2313/18 ,  B01D2313/20 ,  B01D2313/44 ,  B01D2321/04 ,  C02F1/002 ,  C02F1/444 ,  C02F2201/005 ,  C02F2201/006 ,  C02F2307/02

Abstract: A portable or personal water filtration apparatus comprising upstream and downstream removable reservoirs and a back-washable filter interposed therebetween. The back-washable filter comprises an upstream housing and a downstream housing, inside of which are fitted a membrane cartridge and a slidable plunger. The downstream housing is rotatable relative to the upstream housing between two or more positions, including, for example, an open flow position, a closed flow position, and a back-wash position. In the back-wash position, the downstream housing and plunger are axially extendable relative to the upstream housing and membrane cartridge in order to obtain a charge of clean water in the plunger that may then be forced backward through the filter by returning the plunger to its starting position. This dislodges accumulated debris from the membrane and reverses the slowing of flow observed through repeated use of the filter.

Abstract translation: 一种便携式或个人的水过滤装置，包括上游和下游可移除的储存器以及置于其间的可反洗的过滤装置。 可反洗过滤器包括上游壳体和下游壳体，其内部安装有膜盒和可滑动的柱塞。 下游壳体可相对于上游壳体在两个或多个位置之间旋转，包括例如开放流动位置，闭合流动位置和后洗位置。 在后洗位置中，下游壳体和柱塞相对于上游壳体和膜盒轴向可延伸，以便获得柱塞中的清洁水的电荷，然后可以通过将柱塞返回到其中而迫使其向后穿过过滤器 起始位置 这样会从膜上排出积累的碎屑，并反过来反复使用过滤器所观察到的流速减慢。