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...http://www.google.es/patents/US7044903?utm_source=gb-gplus-sharePatente US7044903 - Dunnage conversion machine, method and dunnage product
Dunnage conversion machine, method and dunnage product
