Patent ID: 9283608
Filing Date: 2016-03-15
CPC Classification: B21D,B21K,G11B,Y10T

Claim Text:
1. A method of making disk separator plates for mounting in a hard disk drive, each disk separator plate having a plurality of mounting apertures for fastening the separator plate to the frame of a hard disk drive, the method comprising: stamping a separator plate having a top, a bottom, an external edge, and mounting apertures, from a sheet of metal; extruding a boss having an inner and outer diameter and a predefined height extending from the bottom of the separator plate, around each mounting aperture; and counterboring a larger diameter into the boss at the top of the separator plate for a predefined distance from the top of the separator plate; whereby a plurality of separator plates are nestable together, spaced apart by a distance predetermined by the offset bosses of the separator plate fitting into the counterbore of a boss in an adjacent separator plate.