Patent ID: 6416619
Filing Date: 2002-07-09
Classification: B28B,B32B,C04B,E04C,E04F,H01L,Y02W,Y10T

Abstract:
A system for making wallboard or backerboard sheets comprising:a mixer for mixing materials for making aerated concrete; at least one face layer supply; a former downstream from said mixer for forming core material into a plurality of sheets each having opposing first and second major surfaces and comprising aerated concrete, for joining the sheets of core material together in end-to-end relation and while advancing the joined-together sheets of core material along a path of travel, and for securing at least one face layer from said at least one face layer supply onto at least one of the first and second major surfaces of the joined-together sheets of core material while advancing the joined-together sheets of core material along the path of travel; said former comprising an autoclave for curing the core material prior to securing the at least one face layer thereto; and a cutter downstream from said former for cutting the joined-together sheets of core material and at least one face layer secured thereto into a plurality of wallboard or backerboard sheets while the joined-together sheets of core material and at least one face layer secured thereto are advanced along the path of travel.