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US 6,145,466 AGranted
Boat manufactured from formable aluminum
AssigneeAlcoa Inc.
InventorsWilliam C. Herbein, Daniel D. Roup, Robert B. Whitesides
Life of this patent
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Abstract
The present invention is directed to the enabling formability of the 6000 series alloys for the manufacture of small to medium sized water vessels.
Claims18
A boat comprising:
- a complete outer hull, a complete inner hull and an intermediate layer disposed between said inner and outer hulls, each of said outer hull and said inner hull comprising age hardened stretched aluminum alloy and said intermediate layer comprising a polymer material.
A method of manufacturing a boat comprising the steps of:
- a) providing two sheets of formable aluminum;
- b) stretch forming one of the sheets into a shape of an outer boat hull;
- c) stretch forming the other of the sheets into a shape of an inner boat hull;
- d) aging the outer boat hull and the inner boat hull at a temperature of about 300.degree. F. to about 500.degree. F.;
- and
- e) inserting a layer of a polymer material between the outer boat hull and the inner boat hull.
3 more elements
Dependencies are inferred from the claim text.