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:
Aug. 29, 2000
Filed:
Apr. 07, 1997
Applicant:
Inventors:
Guy A Brada, Chicago, IL (US);
Algirdas A Underys, Arlington Hts., IL (US);
Jesse Adamson, Chicago, IL (US);
Assignee:
A. Finkl & Sons Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; C21D / ;
U.S. Cl.
CPC ...
148325 ; 420 61 ; 75512 ;
Abstract
A tool for glass molding operations, particularly television tubes, having high oxidation resistance so that ice imperfections on a formed workpiece are eliminated or drastically reduced, said tool having the following approximate composition by weight percent: C 0.23-0.38, Mn 0.40-1.00, P 0.040 max, S 0.030 max, Si 0.00-1.20, Ni 1.0-3.0, Cr 14.0-20.0, Mo 0.25-1.00, V 0.10 max, Cu 0.50-1.50, Al 0.50-1.50, Fe balance together with incidental impurities and other elements not significantly adversely affecting performance and methods of manufacture thereof