Michael J Chaulklin

US Patent:

6679147, Jan 20, 2004

Filed:

Sep 17, 1999

Appl. No.:

09/398410

Inventors:

Michael J. Chaulklin - Kentwood MI 49546

International Classification:

B26D 100

US Classification:

8369891, 8369831, 83684, 83691, 83954, 8369811

Abstract:

A punch retainer system includes one or more punch retainers that are selectively insertable into a retainer block. The punch retainers are dimensioned such that they can be positioned closely together and thereby allow punches to be arranged in a closely positioned arrangement. The punch retainers are insertable into a retainer block which includes recesses dimensioned to receive the punch retainers. The recesses are custom-cut in the desired arrangement by the tool and die shop. After insertion of the punch retainers into the retainer block, the punch retainer and retainer block assembly is secured to a die shoe. The punch retainers may include a releasable lock for selectively securing the punches in the punch retainers.