Richard A Michaels

US Patent:

56881860, Nov 18, 1997

Filed:

Apr 2, 1996

Appl. No.:

8/626680

Inventors:

Richard A. Michaels - Girard OH
John VonSchwartz - N. Jackson OH

International Classification:

A63B 5304

US Classification:

473290

Abstract:

A new golf club face design is disclosed in which different regions of grooves are provided in the vertical direction of the club face to impose different roll/bite characteristics on a golf ball depending on where the golf ball contacts the club face. In one embodiment, the golf club face has three characteristic regions of different types of grooves in the vertical direction of the club face. Different irons within the golf club set can also have different characteristic grooves in the three defined regions of the club face.