Rigid computer memory disc manufacturing method

Details Rigid computer memory disc manufacturing method Rigid computer memory disc manufacturing method

1983-12-12

1985-05-21

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

29418, 51323, B24B 100

Patent

active

045177724

ABSTRACT:
A method of manufacturing a rigid computer memory disc where manufacturing operations may be simultaneously performed on both surfaces of the disc. The method that accomplishes the above is to initially provide a disc with a false inner diameter which is smaller than the desired inner diameter thereof. The space between the false inner diameter and the final inner diameter is used for clamping the disc. Thus, the whole final face is exposed for performing the various manufacturing steps.

REFERENCES:
patent: 3992820 (1976-11-01), Suter
patent: 4179852 (1979-12-01), Barnett

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