US 6,981,923 B2
High spin golf club groove configuration
Chris Chappell, Westminster, S.C. (US)
Assigned to Dunlop Sports, Westminister, S.C. (US)
Filed on Dec. 04, 2001, as Appl. No. 10/12,580.
Application 10/012580 is a continuation in part of application No. 09/567498, filed on May 09, 2000.
Claims priority of provisional application 60/258444, filed on Dec. 27, 2000.
Prior Publication US 2002/0042306 A1, Apr. 11, 2002
Int. Cl. A63B 53/04 (2006.01)
U.S. Cl. 473—330 28 Claims
OG exemplary drawing
 
1. A method of producing a high backspin golf club, which minimizes golf ball cover damage comprising the steps of:
providing a golf club head, having a club face;
placing a least one groove onto said club face; and,
shaping at least one of said at least one groove to form:
a first surface connected to the club face via a chamfered edge that forms a fourth substantially flat surface;
a second surface connected to the club face;
a third surface that extends between the first surface and the second surface, wherein the first surface faces the second surface; a leading edge formed by the substantially flat fourth surface and the leading edge between said groove and said club face is an obtuse angle to reduce cover damage.