公开(公告)号：US6032328A

公开(公告)日：2000-03-07

申请号：US21495

申请日：1998-02-10

申请人： Richard Grant Harmon ,  Steve Wood

发明人： Richard Grant Harmon ,  Steve Wood

IPC分类号： A47L9/02 ,  A47L9/24

CPC分类号： A47L9/244 ,  A47L9/02

摘要： A crevice cleaning tool having an elongated hollow body portion extending between a first end configured for attachment to a wand of a vacuum cleaner and a second end providing an opening for passage of vacuum cleaning air. The body portion has a base section slidably coupled to an extension section for movement between a retracted and extended position and a locking mechanism selectively locks the extension section to the base section in each of the retracted and extended positions. The body portion includes a first air channel for providing passage of vacuum cleaning air through the body and a second air channel adjacent the body portion extending to the opening of the second end to provide a secondary air inlet into the body portion. A passageway passes between the first and second air channels for providing fluid communication therebetween and to prevent blockage of vacuum cleaning air through the opening of the second end into the body portion.

摘要翻译： 一种缝隙清洁工具，其具有细长的中空主体部分，其在构造成附接到真空吸尘器的杆的第一端和提供用于真空清洁空气通过的开口的第二端之间延伸。 主体部分具有可滑动地联接到延伸部分的基部部分，用于在缩回和伸出位置之间移动，并且锁定机构在每个缩回位置和延伸位置中将延伸部分选择性地锁定到基部。 主体部分包括用于提供真空清洁空气通过本体的通道的第一空气通道和与主体部分相邻的延伸到第二端的开口的第二空气通道，以向主体部分提供二次空气入口。 通道在第一和第二空气通道之间通过，用于在其间提供流体连通，并且防止真空清洁空气通过第二端的开口阻塞到主体部分中。