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US 5,387,173 AGranted
Fan-folded stock material for use with a cushioning conversion machine
AssigneeRanpak Corp.
InventorJames A. Simmons, Jr.
Life of this patent
Estimating the term…
Abstract
A stock material for use with a cushioning conversion machine is provided. The stock material includes a plurality of superimposed plies of a sheet-like material which are fan-folded into a rectangonal stack. The superimposed plies include a series of alternating folds which each create superimposed creases through the plies. The alternating folds together form a sequence of rectangular pages which are piled accordion-style one on top of the other to form the rectangonal stack.
Claims22
A method of converting fan-folded stock material into a cushioning product, said method comprising the steps of:
- providing a stack of fan-folded stock material;
- providing a conversion assembly for converting the fan-folded stock material into the cushioning product;
- supplying the fan-folded stock material from the stack to the conversion assembly;
- and
- converting the sheet-like stock material into the cushioning product,
- said step of converting the fan-folded stock material including the step of permanently deforming the fan-folded stock material into a nonplanar configuration to provide the cushioning product with a density less than the density of the stock material from which it is formed.
3 more elements
Dependencies are inferred from the claim text.