发明名称 CLEANING HEADS AND METHODS OF USE
摘要 <p>Cleaning heads for extracting liquid from a surface and methods of use are disclosed herein. A cleaning head may include a head body and/or a neck portion that define an internal chamber. A vacuum hose can couple to an opening into the internal chamber. A bottom wall of the head body can be positioned against the surface from which liquid is to be extracted. The bottom wall defines a floor of the internal chamber, a plurality of suction holes into the internal chamber, and a plurality of ridges and a plurality of depressions disposed on an outer surface of the bottom wall. The depressions form vacuum chambers against the surface as suction is applied through the suction holes. An upper wall defines a top of the internal chamber. A sight portion allows visibility of liquid and other material extracted and/or drawn into the vacuum hose.</p>
申请公布号 CA2860772(A1) 申请公布日期 2013.07.18
申请号 CA20132860772 申请日期 2013.01.11
申请人 KENT RESEARCH CORPORATION 发明人 KENT, WILLIE DEE;KENT, STEVEN RODGER
分类号 A47L11/20;A47L9/02;A47L11/29 主分类号 A47L11/20
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