公开(公告)号：US20070215536A1

公开(公告)日：2007-09-20

申请号：US11277004

申请日：2006-03-20

申请人： Govind Bommi ,  Krishna Bommi

发明人： Govind Bommi ,  Krishna Bommi

IPC分类号： B01D27/02

CPC分类号： C02F1/003 ,  C02F1/283 ,  C02F2307/04

摘要： A filter cartridge for use in gravity-fed water treatment systems wherein filter elements include a dome-shaped hydrophilic porous particulate carbon powder block filter in a polymeric binder. The filter has a closed upper end and an open lower end with sidewalls extending there between, additional filter media and includes ion exchange resins and a fine mesh hydrophilic filter sheet to reduce contaminant content of water for drinking purposes.

摘要翻译： 一种用于重力供水处理系统的滤筒，其中过滤元件包括聚合物粘合剂中的圆顶形亲水多孔颗粒碳粉末块过滤器。 过滤器具有闭合的上端和敞开的下端，其间具有侧壁延伸，附加的过滤介质包括离子交换树脂和细网状亲水性过滤片，以减少用于饮用目的的水的污染物含量。

公开(公告)号：US20070102332A1

公开(公告)日：2007-05-10

申请号：US11163953

申请日：2005-11-04

申请人： Govind Bommi ,  Krishna Bommi

发明人： Govind Bommi ,  Krishna Bommi

IPC分类号： B01D21/30

CPC分类号： B01D21/0012 ,  B01D21/0024 ,  B01D21/02

摘要： A multi-stage water purification device includes an untreated water compartment having an untreated water inlet and a treated water compartment formed from a resilient material. The compartments are segregated from one another. An outlet is in flow communication with the treated water compartment. A first unidirectional valve is disposed between the treated water compartment and the outlet and is configure to permit flow out of the treated water compartment only. A filter is disposed between the untreated water compartment and the treated water compartment. The untreated water flows through the filter to produce treated water. A second unidirectional flow valve is positioned at the discharge of the filter and is configured to permit flow out of the filter and into the treated water compartment only. Water is introduced into the untreated water compartment and the treated water compartment is deformed to reduce the volume therein. As the treated water compartment returns to its initial volume it provides a negative pressure to draw the water through the filter into the treated water compartment.

摘要翻译： 多级水净化装置包括具有未处理水入口的未处理水室和由弹性材料形成的处理水室。 隔间彼此隔离。 出口与经处理的水室流通。 第一单向阀设置在经处理的水室和出口之间，并且构造成仅允许流出处理过的水室。 过滤器设置在未处理的水室和经处理的水室之间。 未处理的水流过过滤器以产生处理过的水。 第二单向流量阀位于过滤器的排放处，并且被配置为允许仅从过滤器流出并进入经处理的水室。 将水引入未处理的水室中，并且处理过的水室变形以减小其中的体积。 当处理后的水箱返回其初始体积时，它提供负压力以将水通过过滤器吸入经处理的水室。