专利名称：Bypass valve发明人：Mark E. Wichmann申请号：US10218387申请日：20020814公开号：US06575195B2公开日：20030610
专利附图：
摘要：A bypass valve for directing fluid flow, where the bypass valve includes a valvebody with a notch in at least one end thereof and a spool seated within the valve body.The spool is rotatable within the valve body. One preferred embodiment of the presentinvention also includes at least one endcap attached to an axial end portion of the spool,
where the endcap includes a protrusion extending thereon for preventing relativerotation between the spool and the valve body when the protrusion is positioned withinthe notch. A further aspect of the present invention relates to a bypass valve with a valvebody including a plurality of ports and a generally cylindrical inner periphery, as well as aspool seated within the valve body, where the spool is rotatable and axially translatablewithin the valve body. The spool further preferably includes a top seal seated upon a sealseating surface, where the top seal acts in one mode to block a service inlet port, withoutblocking the other ports, or, in another mode, blocks the service inlet port and theservice outlet port, without blocking the other ports.
申请人：UNITED STATES FILTER CORPORATION
代理机构：Greer, Burns & Crain, Ltd.
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