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:
Aug. 15, 2023

Filed:

Dec. 22, 2021
Applicant:

Karsten Manufacturing Corporation, Phoenix, AZ (US);

Inventors:

Dave Wu, TaiPei, TW;

Tyler Shaw, Paradise Valley, AZ (US);

Matthew W. Simone, Phoenix, AZ (US);

Yujen Huang, PingTung, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/00 (2006.01); A63B 53/02 (2015.01); A63B 53/04 (2015.01); C21D 1/42 (2006.01);
U.S. Cl.
CPC ...
C21D 9/0068 (2013.01); A63B 53/02 (2013.01); A63B 53/047 (2013.01); C21D 1/42 (2013.01); A63B 53/0466 (2013.01); A63B 53/0487 (2013.01); A63B 2053/0479 (2013.01); C21D 2221/00 (2013.01); Y02P 10/25 (2015.11);
Abstract

Embodiments are described herein of a bifurcated heat treatment apparatus and methods for localized heat treatment of a golf club hosel or golf club head. The heat treating method comprises a bifurcated process in which the golf club head is treated in the first heating unit via induction heating and then moved to the second heating unit for convection heating. Both steps are to localize the hosel heat treatment. The heat treatment apparatus may also include a cooling component, such as a heat sink, to ensure the body of the club head remains at the correct temperature during the second heating stage when the hosel is heated in isolation. The overall bifurcated method and apparatus of the localized heat treatment leads to a hosel or golf club head with at least two different hardness values to allow for manipulation of the material without cracking or fracturing.


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