Patent ID: 7770715
Filing Date: 2010-08-10
Classification: B27N,Y10T

Abstract:
1. In combination: a plurality of separate screens including a bad screen; conveyor means for displacing the screens in a row along a closed annular path having a generally horizontal upper stretch and a lower return stretch spaced below the upper stretch; means for forming particle mats on the screens on the upper stretch; pressing means along the upper stretch downstream of the mat-forming means for pressing the mats into rigid panels on the respective screens; stripper means along the upper stretch downstream of the pressing means for separating the panels from the respective screens, whereby the screens are all empty in the lower return stretch; and screen changing means including a unit for removing the bad screen from the conveyor and a unit for feeding a single fresh screen to the conveyor and thereby replacing the bad screen with the fresh screen, one of the units being generally entirely within the path, below the upper stretch and above the lower stretch.