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1. 发明授权

US06217763B1 Back-flushable filter cartridge assemblies 失效
标题翻译：可反冲洗滤芯组件
公开(公告)号：US06217763B1
公开(公告)日：2001-04-17
申请号：US09372045
申请日：1999-08-11
申请人： Dianna L. Lawrence , Brian M. Raab , Carolyn A. Williams , Carl H. Hohenberger
发明人： Dianna L. Lawrence , Brian M. Raab , Carolyn A. Williams , Carl H. Hohenberger
IPC分类号： B01D2921
CPC分类号： B01D29/111 , B01D29/21 , B01D29/96 , B01D2201/0407 , B01D2201/291 , B01D2201/34 , B01D2201/4092 , Y10S210/17
摘要： Filter cartridge assemblies are provided with a generally cylindrical filter medium which defines a cylindrically shaped core space, and a pair of end caps. A threaded base member having detent projections receives at least one of the end caps, which itself is annular and has an interior cylindrical surface defining an interior space in alignment with the core space. The interior space is also provided with interrupted threads defining detent spaces. In use, therefore, the lower end cap may be threadably coupled with the threaded base member such that the detent projections are seated in respective ones of the detent, thereby minimizing the unintended threaded uncoupling therebetween. In another aspect, the filter cartridge is most preferably “coreless” and is capable of being sleeved over a permanent, reusable perforated core element. However, the core element is removably insertable within a base member to which the filter cartridge may be coupled. Specifically, one end of the core element is provided with an annular set ring. The set ring is rigidly connected to the exterior surface in surrounding relationship to the core element at a location spaced axially from the one of its ends (e.g., the lower end) towards the other end (e.g., the upper end). In use, the annular set ring provides a seat which bears against the base when the end of the core element is forcibly inserted thereinto.
摘要翻译：滤芯组件设置有限定圆柱形芯部空间的大致圆柱形的过滤介质和一对端盖。具有止动突起的螺纹底座部件容纳至少一个端盖，端盖本身是环形的并且具有限定与芯部空间对准的内部空间的内部圆柱形表面。内部空间还设置有限定制动空间的中断螺纹。因此，在使用中，下端盖可以与螺纹底座部件螺纹连接，使得止动突起位于相应的止动件中，从而最小化其间的非预期的螺纹脱开。在另一方面，滤筒最优选是“无芯的”，并且能够被套在永久的可重复使用的穿孔芯元件上。然而，芯元件可移除地插入到可以连接滤筒的基座构件中。具体地，芯元件的一端设置有环形固定环。设置环在与其一端（例如下端）轴向间隔开的位置朝向另一端（例如，上端）的位置处以与环形元件围绕的关系刚性地连接到外表面。在使用中，当磁芯元件的端部被强制地插入其中时，环形固定环提供一个靠在基座上的座。

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