Patent ID: 7665721

Claim:
A device for forming stacks of flat products, comprising: a first transportation section for transporting a stream of individual flat products of a first type, a second transportation section for forming an overlapping stream from said flat products of said first type, a stacking unit for forming individual stacks from said overlapping stream, and a feed unit for flat products of a second type, whereby said feed unit introduces said flat products of said second type inline into said stream of individual flat products of said first type, whereby said feed unit introduces two consecutive flat products of said second type between said flat products of said first type, and further whereby, with said stacking unit, said overlapping stream can be split in two between said two consecutive flat products of said second type, so that a first flat product of said second type forms a top cover of a leading stack and a second flat product of said second type forms a base of a trailing stack.