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US 2002/0152716 A1Published application
Light-weight structural panel
AssigneeDofasco Inc.
InventorDavid D?apos;Arcy Clifford
Life of this patent
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Abstract
A fibrous core material having a plurality of weight-reducing holes formed therein is disposed between and bonded to metal skins to form a structural laminate having comparable strength to steel sheets of greater weight.
Claims17
A structural laminate comprising:
- first and second skins of sheet metal, each of said skins having a thickness of at least about 0.005 in.;
- a fibrous core disposed between said skins of sheet metal;
- said fibrous core being bonded to said skins of sheet metal;
- and
- said fibrous core having a plurality of holes formed therein, each of said holes having an area of from about 0.008 square inch to about 0.2 square inch.
2 more elements
Dependencies are inferred from the claim text.