发明名称 AIR FILTER
摘要 <p>An air cleaner comprises a cylindrical filter element having a first open end cap, a second closed end cap, and a cylindrical media pack extending therebetween. The first end cap defines an internal radial seal region. The second, closed end cap has a central region including a circular recessed portion. The air cleaner also includes an end cover. The end cover includes an inner side including a central projection thereon. The central projection is sized and shaped to matably engage the recessed portion of the second end cap, when the filter element is operably installed in the end cover. Methods for installing a filter element in an air cleaner.</p>
申请公布号 WO2002045819(A2) 申请公布日期 2002.06.13
申请号 US2001046277 申请日期 2001.11.29
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