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US 6,203,444 B1Granted
Golf putter having a negatively contoured ball-striking surface
OwnerBrian J. McRaeinventor
Life of this patent
Estimating the term…
Abstract
A golf putter can be provided with a concave ball-striking surface that causes the golf ball to move toward a target point on the ball-striker axis when the ball contact is. offset from the ball-striker axis. The contour of the ball-striking surface can be varied to adapt the putter head to different target distances.
Claims10
A golf putter comprising:
- a putter head having a concave ball-striking surface symmetrical around a ball-striker axis, so that when said surface strikes a golf ball at points offset from said axis the ball is caused to roll toward a target point located along the ball-striker axis;
- said ball-striking surface comprising a flexible front wall on said putter head;
- and
- means for varying the curvature of said ball-striking surface;
- said curvature-varying means comprising a manual adjustment mechanism operable to exert flexural forces on said flexible front wall.
2 more elements
A golf putter comprising:
- a putter head having a ball-striking surface that has a heel edge and a toe edge, and a ball-striker axis located approximately midway between said edges;
- said ball-striking surface being contoured so that when the putter head is swung along any path parallel to the ball-striker axis the golf ball will roll toward a target point located on said axis, even when the ball is struck at a point offset from said axis;
- and
- means for adjusting the contour of said ball-striking surface between a flat contour normal to the ball-striker axis and a concave contour symmetrical around the ball-striker axis, to thereby vary the target point location along said axis;
- said ball-striking surface comprising a flexible ball-striker wall;
- said contour adjusting means comprising a mechanism for flexing said ball-striker wall so that the contour of said ball-striking surface can be varied between a flat contour normal to the ball striker axis and various concave contours symmetrical around the ball-striker axis.
3 more elements
A golf putter comprising:
- a putter head having a non-deformable ball-striking surface that has a heel edge and a toe edge, and a ball-striker axis located approximately midway between said edges;
- said ball-striking surface being contoured so that when the putter head is swung along any path parallel to the ball-striker axis the golf ball will roll toward a target point located on said axis, even when the ball is struck at a point offset from said axis;
- and
- means for adjusting the stable non-transitory contour of said ball-striking surface between a flat contour normal to the ball-striker axis and a concave contour symmetrical around the ball-striker axis, to thereby vary the target point location along said axis.
1 more element
Dependencies are inferred from the claim text.