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公开(公告)号:US4025438A
公开(公告)日:1977-05-24
申请号:US548654
申请日:1975-02-10
申请人: Charles Gelman , Attila Vadnay
发明人: Charles Gelman , Attila Vadnay
CPC分类号: B01D29/56 , B01D29/15 , B01D35/043
摘要: In accordance with the invention there is provided a water filter and water filter cartridge having an upper water filtering layer containing charcoal particles, a lower filtering layer having a submicron pore size and an intermediate filtering layer having a pore size greater than that of the lower layer but less than the particle size of the charcoal in the upper layer.
摘要翻译: 根据本发明,提供了一种水过滤器和水过滤器滤芯,其具有含有炭颗粒的上部过滤层,具有亚微米孔径的下部过滤层和具有大于下层的孔径的中间过滤层 但小于上层木炭的粒径。
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公开(公告)号:US5980746A
公开(公告)日:1999-11-09
申请号:US966261
申请日:1997-11-07
IPC分类号: B01D67/00 , B01D71/20 , B01D71/26 , B01D71/56 , B01D71/68 , C08J5/18 , C08J9/36 , G01N33/544 , G01N33/545 , G01N33/548 , B01D39/18 , B01D71/10
CPC分类号: B01D67/0088 , B01D67/0018 , B01D71/20 , B01D71/68 , G01N33/544 , G01N33/545 , G01N33/548 , B01D2323/12 , B01D2325/02 , B01D2325/36 , Y10T428/249959
摘要: The present invention provides a membrane comprising (a) polymer solids comprising 60 wt. % or more of a fully synthetic organic polymer and optionally about 40 wt. % or less of a polymer of natural origin and (b) a cellulose compound which allows for the detection of a biological molecule of interest, wherein the cellulose compound is uniformly distributed throughout the surface of the membrane. The present invention also provides methods of preparing and using such membranes.
摘要翻译: 本发明提供一种膜,其包含(a)聚合物固体,其包含60wt。 完全合成的有机聚合物的%或更多,任选地约40wt。 %以下的天然来源的聚合物和(b)允许检测感兴趣的生物分子的纤维素化合物,其中所述纤维素化合物均匀分布在膜的整个表面。 本发明还提供了制备和使用这种膜的方法。
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公开(公告)号:US3049411A
公开(公告)日:1962-08-14
申请号:US79268159
申请日:1959-02-11
申请人: CHARLES GELMAN , KRAMER DAVID N
发明人: CHARLES GELMAN , KRAMER DAVID N
IPC分类号: C12Q1/46
CPC分类号: C12Q1/46 , Y10S435/805 , Y10T436/163333
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公开(公告)号:US4001120A
公开(公告)日:1977-01-04
申请号:US631796
申请日:1975-11-13
申请人: Charles Gelman , Attila Vadnay
发明人: Charles Gelman , Attila Vadnay
CPC分类号: B01D29/56 , B01D29/15 , B01D35/043
摘要: In accordance with the invention there is provided a water filtering device for attachment to a faucet comprising a generally tubular passage with an inlet for water from the faucet at its upper end and an outlet for water at the lower end, an annular water filtering chamber surrounding the passage, openings between the lower axial end of said chamber and the lower portion of said passage, openings between the upper axial end of said chamber and the upper portion of said passage, and a valve in said passage movable for blocking the flow of water directly from the upper portion of said passage to the lower portion of said passage whereby when said valve is closed water from the faucet is caused to flow from said passage into and through said filtering chamber and then back into said passage and out of the water outlet. Further in accordance with the invention there is provided a filter for the filter chamber, the filter having an arrangement of filtering layers which provides highly pure water while at the same time providing extended useful filter life.
摘要翻译: 根据本发明,提供了一种用于附接到水龙头的水过滤装置,其包括大致管状的通道,其具有来自其上端处的水龙头的水的入口和在下端处的水的出口,环形水过滤室 所述通道,所述腔室的下轴向端部和所述通道的下部之间的开口,所述腔室的上轴向端部和所述通道的上部之间的开口以及所述通道中的阀可移动以阻塞水流 直接从所述通道的上部到所述通道的下部,由此当所述阀关闭时,使来自水龙头的水从所述通道流入并通过所述过滤室,然后返回所述通道并从出水口 。 此外,根据本发明,提供了一种用于过滤室的过滤器,该过滤器具有提供高纯度水的过滤层的布置,同时提供延长的有用过滤器寿命。
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