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1. 发明授权

US07252759B2 In-tank return line filter element and hydraulic reservoir with same 有权
标题翻译：油箱内回油管过滤元件和液压油箱
公开(公告)号：US07252759B2
公开(公告)日：2007-08-07
申请号：US10889352
申请日：2004-07-12
申请人： Steven R. Evanovich , Augustus O. Schroeder , Norbert Friedrich Karl Sann , Michael Otto Sakraschinsky , Christopher B. Bortnik , Joseph Francis Ickes
发明人： Steven R. Evanovich , Augustus O. Schroeder , Norbert Friedrich Karl Sann , Michael Otto Sakraschinsky , Christopher B. Bortnik , Joseph Francis Ickes
IPC分类号： B01D35/027
CPC分类号： B01D35/02 , B01D35/027 , B01D35/147
摘要： A top or bottom mounted, in-line, in-tank return line filter element is mounted in a hydraulic reservoir. The reservoir includes a holding tank, at least one outlet extending from and one return line extending to the reservoir, an in-tank return line within the reservoir and extending to one return line, and an in-tank return line filter element mounted within the in-tank return line. The in-tank return line filter element includes an end cap, a filter media and a by-pass valve coupled thereto. The end cap includes a central fluid opening, a mounting surface for the filter media, and a peripheral attaching mechanism for attaching the filter element to the in-tank return line to form a filter assembly. The mounting surface is positioned between the central opening and the attaching mechanism such that an in-line, in-tank filter element is provided.
摘要翻译：顶部或底部安装的在线式油箱内回油管路过滤器元件安装在液压油箱中。储存器包括容纳槽，至少一个从一个延伸到贮存器的返回管延伸出的出口，在贮存器内部的一个槽内返回管线，并延伸到一个返回管路，以及一个安装在内部坦克内回程箱内回流管路过滤元件包括端盖，过滤介质和与其连接的旁通阀。端盖包括中心流体开口，用于过滤介质的安装表面，以及用于将过滤元件附接到槽内返回管线以形成过滤器组件的外围附接机构。安装表面位于中心开口和附接机构之间，使得提供一个在线的内部的过滤元件。

2. 发明申请

US20100032362A1 REPLACABLE FILTER ELEMENT WITH SHIELDED BOTTOM BYPASS VALVE 有权
标题翻译：可更换过滤器元件与屏蔽底部旁路阀
公开(公告)号：US20100032362A1
公开(公告)日：2010-02-11
申请号：US12536961
申请日：2009-08-06
申请人： Steven R. Evanovich , Augustus O. Schroeder , Robert B. Murad
发明人： Steven R. Evanovich , Augustus O. Schroeder , Robert B. Murad
IPC分类号： B01D35/153
CPC分类号： B01D35/147 , B01D2201/291
摘要： A replaceable inside out flow filter element comprises an annular filter media structure; an upper end cap attached one end of the media structure; a lower end cap attached to an opposed end of the media structure, with an inner annular bypass mounting sidewall formed on the lower end cap; a bypass valve assembly secured to the inner annular bypass mounting sidewall and configured to communicate with the radial inner side of the annular filter media structure; and an annular bypass shield tube coupled to the bypass mounting sidewall and extending above the bypass valve assembly toward the upper end cap, wherein the inner annular bypass mounting sidewall and the annular bypass shield tube combine with the radial inner side of the media structure to define an annular particulate receiving area that extends about at least ½ of the length of the media structure from the lower end cap.
摘要翻译：可替换的内出流过滤元件包括环形过滤介质结构; 上端盖连接在介质结构的一端; 附接到所述介质结构的相对端的下端盖，其具有形成在所述下端盖上的内部环形旁路安装侧壁; 旁通阀组件，其固定到所述内环形旁路安装侧壁并且构造成与所述环形过滤介质结构的径向内侧连通; 以及环形旁路屏蔽管，其耦合到所述旁路安装侧壁并在所述旁路阀组件上方朝向所述上端盖延伸，其中所述内环形旁路安装侧壁和所述环形旁路屏蔽管与所述介质结构的径向内侧结合以限定环形颗粒接收区域，其从所述下端盖延伸至所述介质结构的长度的至少1/2。

3. 发明授权

US08349173B2 Replacable filter element with shielded bottom bypass valve 有权
标题翻译：具有屏蔽底部旁路阀的可更换滤芯
公开(公告)号：US08349173B2
公开(公告)日：2013-01-08
申请号：US12536961
申请日：2009-08-06
申请人： Steven R. Evanovich , Augustus O Schroeder , Robert B Murad
发明人： Steven R. Evanovich , Augustus O Schroeder , Robert B Murad
IPC分类号： B01D35/147
CPC分类号： B01D35/147 , B01D2201/291
摘要： A replaceable inside out flow filter element comprises an annular filter media structure; an upper end cap attached one end of the media structure; a lower end cap attached to an opposed end of the media structure, with an inner annular bypass mounting sidewall formed on the lower end cap; a bypass valve assembly secured to the inner annular bypass mounting sidewall and configured to communicate with the radial inner side of the annular filter media structure; and an annular bypass shield tube coupled to the bypass mounting sidewall and extending above the bypass valve assembly toward the upper end cap, wherein the inner annular bypass mounting sidewall and the annular bypass shield tube combine with the radial inner side of the media structure to define an annular particulate receiving area that extends about at least ½ of the length of the media structure from the lower end cap.
摘要翻译：可替换的内出流过滤元件包括环形过滤介质结构; 上端盖连接在介质结构的一端; 附接到所述介质结构的相对端的下端盖，其具有形成在所述下端盖上的内部环形旁路安装侧壁; 旁通阀组件，其固定到所述内环形旁路安装侧壁并且构造成与所述环形过滤介质结构的径向内侧连通; 以及环形旁路屏蔽管，其耦合到所述旁路安装侧壁并在所述旁路阀组件上方朝向所述上端盖延伸，其中所述内环形旁路安装侧壁和所述环形旁路屏蔽管与所述介质结构的径向内侧结合以限定环形颗粒接收区域，其从所述下端盖延伸至所述介质结构的长度的至少1/2。

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