发明名称 CLEANING HEAD
摘要 A cleaning head 110 of the present invention includes a first cleaning pad 212, a second cleaning pad 214, a third cleaning pad 216, and a fastening means 230 holding the first cleaning pad 212, the second cleaning pad 214, and the third cleaning pad 216 together. Each of the cleaning pads 212, 214, 216 has a top end 240a, 240b, 240c, a bottom end 244a, 244b, 244c, a first side 250a, 250b, 250c, a second side 254a, 254b, 254c, a first surface 260a, 260b, 260c and a second surface 264a, 264b, 264c. The first and second sides of each of the cleaning pads extend radially from a vertical axis of the cleaning head. The cleaning pads, in combination, are formed of at least a first material and a second material.
申请公布号 WO2017027313(A1) 申请公布日期 2017.02.16
申请号 WO2016US45525 申请日期 2016.08.04
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 CHAFFEE, Matthew, D.;BALDWIN, Mark;MOONEY, Michael, C.
分类号 A47L17/00;A47L17/08 主分类号 A47L17/00
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