Abrasive disc
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 8, 1989
Issued Date -
N/A
app pub date -
Oct 17, 1983
filing date -
Sep 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An abrasive disc comprising a bonded abrasive body having a substantially flat mounting surface, a plurality of anchors each including a cup-shaped metallic washer having a flat top surface portion substantially flush with the flat mounting face and an annular outwardly inclined skirt portion embedded within the abrasive body, each washer including a first plurality of apertures in the skirt portion whereby integral portions of the bonded abrasive body extending therethrough lock the washer in position within the bonded abrasive, and a second plurality of apertures in the flat top surface portion filled with abrasives for decreasing the metallic surface area of the washer.
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