Abrading – Rigid tool – Rotary disk
Reexamination Certificate
2006-02-07
2006-02-07
Rose, Robert A. (Department: 3723)
Abrading
Rigid tool
Rotary disk
C451S543000
Reexamination Certificate
active
06994616
ABSTRACT:
A grinding unit assembly, a plurality of which is placed around a cylinder (12) of a grinding machine. Each assembly comprises a grindstone unit (1) and a metal fixture (16). The grindstone holder (3) has on one side face a positioning cutout (7), and a thinly cut grindstone (2) attached to one end of the grindstone holder (3). The metal fixture (16) has a metal body (17) having a protrusion (18) adapted to fit in the cutout (7) and a locking bolt (21).
REFERENCES:
patent: 1989215 (1935-01-01), Seybold
patent: 2084789 (1937-06-01), Beebe
patent: 2307632 (1943-01-01), Meyer
patent: 2453748 (1948-11-01), Fisher et al.
patent: 3524736 (1970-08-01), Spencer
patent: 4212137 (1980-07-01), Rue
patent: 4910924 (1990-03-01), Bouchard et al.
patent: 986768 (1983-01-01), None
Atryz Inaken Co., Ltd.
Bacon & Thomas PLLC
Daisho Seiki Corporation
Rose Robert A.
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