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1. (WO2017039792) DUNNAGE CONVERSION SYSTEM AND METHOD FOR EXPANDING PRE-SLIT SHEET STOCK MATERIAL

Pub. No.:    WO/2017/039792    International Application No.:    PCT/US2016/039169
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Jun 25 01:59:59 CEST 2016
IPC: B31D 5/00
Applicants: RANPAK CORPORATION
Inventors: CHEICH, Robert C.
URBAN, Peter J.
Title: DUNNAGE CONVERSION SYSTEM AND METHOD FOR EXPANDING PRE-SLIT SHEET STOCK MATERIAL
Abstract:
A dunnage conversion machine (12) includes a frame (20), a supply support (22) coupled to the frame for supporting a supply of expandable sheet stock material (16), and a pair of opposed expansion members (69, 70) rotatably coupled to the frame for rotation about respective axes. The expandable sheet stock material is gripped between the expansion members while it is drawn between the expansion members. Tension provided between a downstream pulling force downstream of the expansion members and the gripping force of the expansion members causes expansion of the expandable sheet stock material. Portions of the expansion members are periodically recessed.