Abrading – Abrading process – Combined abrading
Reexamination Certificate
2003-06-02
2008-08-26
Eley, Timothy V (Department: 3724)
Abrading
Abrading process
Combined abrading
C451S057000, C451S063000
Reexamination Certificate
active
07416476
ABSTRACT:
A method and apparatus for grinding a brake pad forms inclined faces at both ends of the brake pad through a single route of movement and no grinding limit quantity is involved whether boundary lines are parallel with each other or not. The apparatus includes: a fixing portion11for fixing a brake pad3;a rotary whetstone21having a rotation axis parallel to a friction face3aof the brake pad3, a grinding face of which a distance to the rotation axis increases gradually or in a plurality of steps in one direction of the rotation axis, and another grinding face of which a distance to the rotation axis decreases gradually or in a plurality of steps in the one direction of the rotation axis; and a transporter10for moving one of the brake pad and the rotary whetstone in relation to each other in a intersecting direction to the rotation axis.
REFERENCES:
patent: 5613898 (1997-03-01), Lumen
patent: 6110009 (2000-08-01), Hashimoto et al.
Sakaguchi Ryoichi
Yokoyama Kozo
Eley Timothy V
Muramatsu & Associates
Nisshinbo Industries, Inc
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