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. 06, 2005
Filed:
Dec. 16, 1997
Applicant:
Algirdas A. Underys, Arlington Heights, IL (US);
Inventor:
Algirdas A. Underys, Arlington Heights, IL (US);
Assignee:
A. Finkl & Sons Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D001/34 ;
U.S. Cl.
CPC ...
Abstract
A method of heat treating tool steel by using a high intensity infrared heating source, said source being tungsten halogen heat lamps which operate in air, non-air and/or vacuum environments, and a tool steel heat treat system which includes a furnace containing said tungsten halogen lamp means, a lining of a reflective metal and, preferably, support structure for the tool steel workpieces which are composed of ceramic or other high melting point material.