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US 2018/0222709 A1Published application
Expanded metal core
AssigneeWallner Expac, Inc.
InventorMichael H. Wallner
Life of this patent
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Abstract
A material roll includes a core made from expanded metal, and a first sheet of material wound a plurality of times over the core.
Claims13
A material roll comprising:
- a core made from expanded metal;
- and
- a sheet of material wound a plurality of times over said core.
The roll as recited in claim 12, wherein each opening is diamond shaped.
Dependencies are inferred from the claim text.