Backing pad with slots for sanding disks with multiple holes
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Jan 15, 2015
filing date -
Feb 6, 2014
priority date (Note) -
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Abstract
The present invention relates to a backing pad (1) with slots for sanding discs with multiple holes, comprising three parts, upper, intermediate and lower, joined together by a fastening system in which the upper part (2), with a frustoconical shape, includes suction holes (7) and a central hole (8), characterized in that the intermediate part (3) comprises intermediate suction slots (5), a central hole (8′) and in the rear face some suction channels (6) bordered by upraised walls (10); and the lower part (4), with a frustoconical shape, and in which the intermediate part (3) will engage, comprises lower suction slots (11) and a central hole (8″), and said lower suction slots (11) are arranged in rings, concentric and equidistant between them, and the size of each of the lower suction slots (11) increases from the center to the periphery.
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