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:
Apr. 09, 1996
Filed:
Jun. 17, 1994
Applicant:
Inventors:
Gregory N Colvin, Muskegon, MI (US);
Steven A Salter, Whitehall, MI (US);
Andrew L Matthews, Muskegon, MI (US);
Assignee:
Howmet Corporation, Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ; B22D / ; B22C / ;
U.S. Cl.
CPC ...
164 61 ; 164 571 ; 164 661 ; 164 72 ; 164158 ;
Abstract
Method and apparatus are provided for casting titanium-aluminum alloys including generally 10 weight % or more Al in a reusable metallic mold or die in a manner that retards or avoids build-up of a deleterious aluminum layer on the mold or die cavity surfaces that adversely affects surface quality of castings solidified therein.