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:
Feb. 01, 1977
Filed:
Mar. 08, 1976
Applicant:
Inventors:
Robert H Kachik, Washington Township, Westmoreland County, PA (US);
Samuel J Manganello, Penn Hills Township, Allegheny County, PA (US);
Arthur J Pignocco, Franklin Township, Westmoreland County, PA (US);
Assignee:
United States Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B22D / ;
U.S. Cl.
CPC ...
164 54 ; 164 92 ; 164 94 ; 164D / ;
Abstract
A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction without using containment perimeters and without preheating the casting. The resultant repaired article has a metallurgically bonded plug in the hole or eroded surface with a thick abrasion-resistant slag covering over the deposited metal.