Patent ID: 6923100
Filing Date: 2005-08-02
Classification: B26F,B27N,Y10T

Abstract:
1. A method for forming an opening in particle board having a surface that is aesthetically attractive, said method comprising the steps of: placing a punch in a press, said punch having a radius, a central opening and an extended end with an edge formed by a generally hemispherical recess in said extended end, said generally hemispherical recess having a radius larger than the radius of said punch; placing a backer plate under said punch on said press, said backer plate having an opening larger than twice the radius of said punch to provide clearance, said backer plate opening being aligned with said punch, and said backer plate opening including a lower portion having a beveled periphery; placing a particle board on said press between said punch and said backer plate; and pushing said punch by said press into said particle board over a time period of six to seven seconds, said particle board being cut, compressed and sheared during the pushing step.