Golf club head

Patent metadata

Field	Value
Publication number	US-9314678-B2
Application number	US-201414464881-A
Country	US
Kind code	B2
Filing date	Aug 21, 2014
Priority date	Nov 8, 2012
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

Embodiments of golf club heads and methods to manufacture such a golf club heads are generally described herein. In some embodiments, the golf club head may include a ball-striking face and a protective aluminum oxide layer coupled to the ball-striking face of the golf club head. The protective aluminum oxide layer is associated with a hardness that is greater than that of the ball-striking face. In further embodiments, golf club heads may include a top portion and at least one of a plurality of interchangeable alignment indicia coupled thereto, which are configured to guide the golf club head relative to a golf ball.

First claim

What is claimed is:

1. A golf club head comprising:
a ball-striking face, wherein the ball-striking face is associated with a first hardness; and
a protective aluminum oxide layer coupled to the ball-striking face,
wherein the protective aluminum oxide layer is associated with a second hardness, and wherein the second hardness is greater than the first hardness;
the ball-striking face comprises, by weight, about 0.8% to about 1.2% magnesium, about 0.4% to about 0.8% silicon, about 0.15% to about 0.40% copper, and about 0.04% to about 0.35% chromium;
the second hardness is about 100 in Brinell scale;
wherein a thickness of the ball-striking face is reduced in order to reduce weight of the ball-striking face by at least 10 grams, wherein the at least 10 grams of weight is redistributed to move a center of gravity of the golf club head away from the ball-striking face and lower the center of gravity toward the bottom portion of the golf club head;
wherein the golf club head is associated with a moment of inertia about a Y axis of the golf club head, the moment of inertia ranging from about 4100 g-cm 2 to about 4300 g-cm 2 ;
wherein the golf club head is associated with a moment of inertia about an X axis of the golf club head, the moment of inertia ranging from about 800 g-cm 2 to about 900 g-cm 2 ; and
wherein the golf club head is associated with a moment of inertia about a Z axis of the golf club head, the moment of inertia ranging from about 1100 g-cm 2 to about 1200 g-cm 2 .

2. The golf club head of claim 1 , wherein the protective aluminum oxide layer is associated with a thickness of about 10 microns (μm) to about 2 millimeters (mm).

3. The golf club head of claim 1 further comprising a top portion and at least one of a plurality of interchangeable alignment indicia coupled to the top portion, wherein the interchangeable alignment indicia are configured to guide the golf club head relative to a golf ball.

4. The golf club head of claim 1 further comprising a top portion, at least one of a plurality of interchangeable alignment indicia coupled to the top portion, the interchangeable alignment indicia being configured to guide the golf club head relative to a golf ball, and an attachment mechanism configured to receive the interchangeable alignment indicia.

5. A golf club comprising:
a shaft;
a golf club head coupled to the shaft, the golf club head having a ball-striking face associated with a first hardness, the golf club head associated with a moment of inertia about a Y axis of the golf club head, the moment of inertia ranged from about 4100 g-cm 2 to about 4300 g-cm 2 ; and
wherein the golf club head is associated with a moment of inertia about an X axis of the golf club head, the moment of inertia ranging from about 800 g-cm 2 to about 900 g-cm 2 ;
wherein the golf club head is associated with a moment of inertia about a Z axis of the golf club head, the moment of inertia ranging from about 1100 g-cm 2 to about 1200 g-cm 2 ;
a protective aluminum oxide layer coupled to the ball-striking face, wherein the protective aluminum oxide layer is associated with a second hardness, and wherein the second hardness is greater than the first hardness;
the ball-striking face comprises, by weight, about 0.8% to about 1.2% magnesium, about 0.4% to about 0.8% silicon, about 0.15% to about 0.40% copper, and about 0.04% to about 0.35% chromium;
the second hardness is about 100 in Brinell scale;
wherein a thickness of the ball-striking face is reduced in order to reduce weight of the ball-striking face by at least 10 grams, wherein the at least 10 grams of weight is redistributed to move a center of gravity of the golf club head away from the ball-striking face and lower the center of gravity toward the bottom portion of the golf club head.

6. The golf club of claim 5 , wherein the golf club further comprises a top portion and at least one of a plurality of interchangeable alignment indicia coupled to the top portion, and wherein the interchangeable alignment indicia are configured to guide the golf club head relative to a golf ball.

7. The golf club of claim 5 , wherein the golf club further comprises a top portion, at least one of a plurality of interchangeable alignment indicia coupled to the top portion, the interchangeable alignment indicia being configured to guide the golf club head relative to a golf ball, and an attachment mechanism configured to receive the interchangeable alignment indicia.

Assignees

• Karsten Mfg Corp

Inventors

• Quan Liang
• Serrano Anthony D

Classifications

• A63B53/04

  Heads · CPC title

• A63B2053/042

  Human Necessities · mapped topic

• C25D11/24

  Chemical after-treatment · CPC title

• A63B2053/0425

  Human Necessities · mapped topic

• A63B2209/00

  Characteristics of used materials · CPC title