부산대학교 도서관

An attached device (Smooth Roller) (not an insert within a cutout on the face of a putter) made of lightweight soft urethane elastomer material. The attached device has two sides: a backside and a front or striking side. The backside of the device is flat and coated with an adhesive. The front or striking side is round in shape. Attachment is achieved by contacting the device flat backside surface, coated with an adhesive, with the putter's flat face striking surface. The attached device position is fixed by aligning the top of the device with the top of the putter's head providing the optimal striking relationship between Smooth Roller and golf ball. The Smooth Roller extends vertically and horizontally across the putter's face. The Smooth Roller can attach to any existing putter having a flat putter face. The front side or striking face is described. The urethane elastomer material of the Smooth Roller's striking face has a varied durometer (hardness) ranging from 15 to 80 rating. The lower the durometer the softer the material and can be made to accommodate individual preference for “feel” and distance control. The front or striking side surface of the Smooth Roller is shaped round and extends longitudinal along the length of the putter face. The round shaped striking face imparts a desired over spin to the golf ball when the ball is struck with a putter employing the attached Smooth Roller device. A ball struck with a putter employing the Smooth Roller device rolls smoothly across the putting surface without skidding, backspin or bouncing, which is common in putters