Patent ID: 7070729
Filing Date: 2006-07-04
Classification: B29C,B29L

Abstract:
1. A method of making a pressed a paperboard container comprising: (a) positioning a paperboard blank in a pressware die set in an open position, the die set having a punch and die each of which has substantially planar central portions and outer portions corresponding to like portions of the formed container wherein the punch is provided with a plurality of mechanical product ejectors disposed at its outer portions, each of which product ejectors include (i) a movable ejector member defining an ejector surface and (ii) biasing means; (b) closing the die set to press the paperboard blank into the container, the forming surfaces at the outer portion of the punch corresponding to a sidewall portion, an intermediate portion and a flange portion of the container; and (c) opening the die set, whereupon the biasing means urge the ejector surfaces to project from the forming surfaces of the outer portion of the punch in order to eject the formed container therefrom, wherein the plurality of mechanical ejectors include a plurality of rocker members ejectors, pivotally mounted at an outer portion of the punch.