초록 ▼

The invention disclosed herein is directed to a golf putter with a ball-striking face that has a plurality of grooves formed therein. In the preferred embodiment, the grooves are equally spaced concentric grooves with a common center that lies along a line parallel to a line passing through the swee

The invention disclosed herein is directed to a golf putter with a ball-striking face that has a plurality of grooves formed therein. In the preferred embodiment, the grooves are equally spaced concentric grooves with a common center that lies along a line parallel to a line passing through the sweet spot of the putter.

대표청구항 ▼

A putter, comprising: a putter head having a ball-striking face; a shaft connected to said putter head; and a plurality of arcuate concentric grooves formed in said ball-striking face, said grooves having a common center of rotation that is located above or below said ball-striking face along a gene

A putter, comprising: a putter head having a ball-striking face; a shaft connected to said putter head; and a plurality of arcuate concentric grooves formed in said ball-striking face, said grooves having a common center of rotation that is located above or below said ball-striking face along a generally vertical line extending through the sweet spot of said putter head when the putter head is in its normal putting position.