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.

Date of Patent:
Oct. 27, 2015

Filed:

Aug. 12, 2013
Applicant:

The Timken Company, Canton, OH (US);

Inventors:

Stephen Johnson, North Canton, OH (US);

Xiaolan Ai, Massillon, OH (US);

Stephen B. Fitch, Massillon, OH (US);

Assignee:

The Timken Company, North Canton, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 9/32 (2006.01); H05B 6/40 (2006.01); H05B 6/10 (2006.01);
U.S. Cl.
CPC ...
C21D 9/32 (2013.01); H05B 6/101 (2013.01); H05B 6/405 (2013.01);
Abstract

A method for heat treating a gear having gear teeth includes removably mounting the gear on a work-piece holder, moving one of either a magnet assembly or the work-piece holder to bring the gear and the magnet assembly into heating proximity, rotating the magnet assembly for a desired amount of time while said magnet assembly and gear are in heating proximity to each other to heat treat surfaces of the gear teeth, moving one of either the magnet assembly or the work-piece holder relative to the other to bring different surfaces of the gear into heating proximity with said magnet assembly, and repeating for each opposed pair of gear teeth surfaces until all said gear teeth surfaces are heat treated.


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