Callaway Golf Company

Callaway Gold Company

William D Richardson

Larry G Tang

Evan D Gibbs

Homer E Aguinaldo

J Neil Hall

Uday V Deshmukh

Ronald C Boyce

Neil Hall

A face for a golf club head is disclosed herein. The face has an interior surface comprising a central region having a first perimeter having an elliptical shape, an outer edge having a non-elliptical, driver-face profile shape, a first intermediate region located between the first perimeter and the outer edge, the first intermediate region having a second perimeter with a shape that is more similar to the shape of the first perimeter than the shape of the outer edge, and a second intermediate region located between the second perimeter and the outer edge, the second intermediate region having a third perimeter with a shape that is more like the shape of the outer edge than the shape of the first perimeter. The thicknesses of the perimeters of the face disclosed herein may vary around their respective circumferences.

Golf club head with variable face thickness

A face or face insert () for a golf club head () is disclosed herein. The face () has an interior surface () with a first thickness section () and a second thickness region (). The first thickness section () preferably has a thickness that is at least 0.025 inch greater than the thickness of the second thickness region (). In a most preferred embodiment, the first thickness section () has an X shape that is rotated around the Y axis () by at least 10 degrees. In another preferred embodiment, the face has a first thickness section (), a second thickness region (), and a central region () having a third thickness. The face or face insert () with variable thickness allows for a face or face insert () with less mass in a golf club head () that conforms to the United States Golf Association regulations.

A golf club head () having a body () with a front wall () with an opening () and a striking plate insert () is disclosed herein. The striking plate insert () is heat treated, and preferably has a microstructure with at least 40% alpha phase. The golf club head () has a volume between 200 cubic centimeters and 600 cubic centimeters. The golf club head () has a mass between 140 grams and 215 grams.

Golf club head with a face insert

Growing community of inventors

San Marcos, CA, United States of America

William D Richardson