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:
Sep. 16, 1986
Filed:
Aug. 02, 1984
Applicant:
Inventors:
Matthew M Guzowski, Wernersville, PA (US);
David A Sentner, Pottstown, PA (US);
Geoffrey K Sigworth, Reading, PA (US);
Assignee:
Cabot Corporation, Boston, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148415 ; 148159 ;
Abstract
Disclosed is a new aluminum grain refiner alloy with a controlled, effective content of 'duplex' crystals. The duplex crystals are made by (1) producing aluminides that contain boron in solution, and by (2) aging said aluminide in a manner to precipitate at least part of the boron to form the duplex crystals. The duplex crystals have been discovered to be extremely potent grain refining agents.