The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 1992
Filed:
Dec. 09, 1991
Applicant:
Inventors:
Richard A Morley, Chesterfield, VA (US);
William H Overbagh, Chesterfield, VA (US);
Assignee:
Reynolds Metals Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148439 ; 148437 ; 420528 ; 420532 ; 420535 ; 420539 ; 420541 ; 420544 ; 420551 ; 420553 ;
Abstract
An aluminum-lithium based alloy which comprises 10-20 wt. % silicon, 1.5-5.0 wt. % copper, 1.0-4.0 wt. % lithium, 0.45-1.5 wt. % magnesium, 0.01-1.3 wt. % iron, 0.01-0.5 wt. % manganese, 0.01-1.5 wt. % nickel, 0.01-1.5 wt. % zinc, 0.01-0.5 wt. % silver, 0.01-0.25 wt. % titanium and the balance aluminum. The alloy is utilized to cast high temperature assemblies including pistons which have a reduction in density and similar mechanical properties including tensile strengths to alloys presently used.