Polishing device

Details Polishing device Polishing device

1996-04-16

1997-07-08

Eley, Timothy V.

Abrading

Machine

Rotary tool

451269, 451287, 451290, B24B 717

Patent

active

056454724

ABSTRACT:
A polishing device is formed of a pair of rotatable and elevatable upper supporting members provided with ring shape polishing pads at lower surface peripheries thereof, a pair of rotatable lower supporting members provided with ring shape polishing pads at upper surface peripheries thereof, a rotatable and elevatable disc holding device for holding a disc to be polished, and an arm for supporting the upper supporting members and the disc holding device. The polishing device further includes driving devices for rotating the upper supporting members, the lower supporting members and the disc holding device, respectively. The disc is independently rotated in a direction opposite to a rotating direction of the upper and lower supporting members to improve polishing efficiency. By setting rotating speeds of the supporting members and the disc, a regular working mark can be formed on the disc.

REFERENCES:
patent: 2688215 (1954-09-01), Roshong et al.
patent: 3142137 (1964-07-01), Fallon et al.
patent: 3425169 (1969-02-01), Dunn
patent: 3458957 (1969-08-01), Dunn et al.
patent: 4586296 (1986-05-01), Saunders

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