发明名称 DRY-ERASE MARKER ERASER
摘要 <p>A dry-erase marker eraser (10) is comprised of a springly tubular sleeve (11) with a closed end (12) and an open end (13). An erasing pad (17) is attached to the closed end of the sleeve. Longitudinal gripping ribs (19) are arranged around an interior wall (20) of the sleeve adjacent the open end. Longitudinal stop ribs (21) are arranged around the interior wall of the sleeve adjacent the closed end. The open end of the sleeve is adapted to fit around a butt end (14) of a marker (15). The sleeve and gripping ribs are sized to engage markers between a minimum diameter and a maximum diameter. when the sleeve is positioned around a marker of the minimum diameter, the gripping ribs are closest from each other and the open end of the sleeve has a circular shape. When the sleeve is positioned around a marker of the maximum diameter, the gripping ribs are spread apart and the sleeve is reduced in curvature between the gripping ribs to a polygonal shape.</p>
申请公布号 WO2003007755(A1) 申请公布日期 2003.01.30
申请号 US2002010968 申请日期 2002.04.09
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