Impeller
OwnerHarold Mendelson, Mildred Mendelson +2inventors
InventorsHarold Mendelson, Mildred Mendelson, Arthur L. Forrest, John J. Dvorak
Life of this patent
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Abstract
Disclosed is an impeller made from titanium or a titanium alloy. Desirably, the titanium or titanium alloy is cast into the impeller.
Claims17
An impeller comprising at least 66%, by weight titanium and having a surface alloy layer, wherein said impeller has a metal fiber structure that substantially parallels said impeller's shape.
An impeller-driven marine craft comprising
- a) an impeller, said impeller being at least about 66% by weight titanium and having a surface alloy layer wherein said impeller has a metal fiber structure that substantially parallels said impeller's shape;
- b) an engine attached to, and capable of driving said impeller, and
- c) said marine craft onto which said engine and impeller are mounted so as to enable said engine and impeller to drive said marine craft.
A method of making an impeller comprising casting a piece of metal comprising at least about 66% by weight titanium and having a surface alloy layer wherein said impeller has a metal fiber structure that substantially parallels said impeller's shape, into an impeller's shape.
A propeller comprising at least 66% by weight titanium and having a surface alloy layer wherein said propeller has a metal fiber structure that substantially parallels said propeller's shape.
Dependencies are inferred from the claim text.