Apparatus for grinding a master disc

Details Apparatus for grinding a master disc Apparatus for grinding a master disc

1995-07-05

1997-10-07

Rose, Robert A.

Abrading

Machine

Rotary tool

451 63, 451285, 451286, 451388, B24B 2900

Patent

active

056741154

ABSTRACT:
The apparatus is to be reduced in size and consumption of utility items is to be decreased, while the connection is to be facilitated by the in-line transporting system. The grinding apparatus includes a turntable 21 for securing a glass master disc 30 for rotating the glass master disc 30, a polishing pad 11 caused to bear against the grinding surface of the glass master disc 30 secured to the turntable 21 with a pre-set pressure and a slurry nozzle 14 for supplying the grinding liquid to the grinding surface of the glass master disc 30. The polishing pad 11 is thrust against the glass master disc 30 rotated by rotation of the turntable 21. The glass master disc 30 has its grinding surface ground as the grinding liquid is supplied to the grinding surface.

REFERENCES:
patent: 4393628 (1983-07-01), Ottman et al.
patent: 4597228 (1986-07-01), Koyoma et al.
patent: 4603867 (1986-08-01), Babb et al.
patent: 5357304 (1994-10-01), Wakamiya et al.
patent: 5421768 (1995-06-01), Fujiwara et al.
patent: 5421769 (1995-06-01), Schultz et al.
patent: 5485644 (1996-01-01), Shinbara et al.
patent: 5545076 (1996-08-01), Yun et al.

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