US Patent 7351466 Dunnage conversion machine, method and dunnage product

A dunnage conversion machine is characterized by a forming assembly which causes lateral edge portions of a substantially continuous sheet stock material to crumple and to fold upon themselves, leaving an unfolded central portion between the laterally spaced apart folded portions. The layers of sheet stock material in the folded portions are fixed by a feeding/fixing assembly having two pairs of laterally spaced feed assemblies to form a dunnage product which does not come apart as it is manipulated. A severing assembly severs discrete dunnage products from the continuous strip of dunnage.