Patent ID: 7207103
Filing Date: 2007-04-24
Classification: B22F,B30B,H01G,Y10T

Abstract:
1. A press for forming a capacitor element from valve powder comprising: walls forming an elongated compression chamber of uniform section having openings at opposite ends, a set of opposed and aligned rib punches extending through said openings ,respectively, and linearly reciprocatable in said chamber toward one another a first distance between a non compacting position and a compacting position, a set of opposed and aligned channel punches extending through said openings, respectively, and linearly reciprocatable in said chamber toward one another a second distance between a non compacting position and a compacting position, said first distance being greater than said second distance, said rib and channel punches being interleaved in side by side interposed relation to one another, first drive means operable to move said rib punches between the non-compacting position and the compacting position at a first predetermined speed, second drive means operable to move said channel punches between the non-compacting position and the compacting position at a second predetermined speed, the ratio of said first predetermined speed to said second predetermined speed being equal to the ratio of said first distance to said second distance, and controls operable to cause said first and second drive means to simultaneously move said rib and channel punches from the non-compacting positions to the compacting positions.