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. 30, 1997
Filed:
Apr. 08, 1992
Applicant:
Inventors:
Frank Hengerer, Schwebheim, AT;
Johann Volkmuth, Nieder lauer, DE;
Assignee:
SKF GmbH, Schweinfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148589 ; 148566 ; 148567 ; 148570 ; 148663 ;
Abstract
In a method for producing machine elements of steel having a carbon content of 0.3 to 1.1%, blanks are heated to austenitizing temperature and austenitized, quenched for the formation of martensite, heated from room temperature to a maximum tempering temperature, and immediately after reaching said maximum temperature cooled to room temperature to attain a hardness of 45 to 65 RHC and finish-machined to machine elements.
Hengerer, Frank. (1997). Method for producing machine elements of steel (U.S. Patent No. 5672217). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5672217
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