Golf club with electrical discharge machined face
AssigneeDiversified Metal Incorporated
InventorsGary D. Miesch, Gregg D. Miesch, Donald H. Miesch
Life of this patent
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Abstract
A golf club such as a putter includes a club head attached to a shaft. The club head includes a ball striking surface or front face. The surface is finish machined to a flatness tolerance of .+-.0.001 inches. The face includes an electrical discharge machined pattern which reduces surface contact area, increases the coefficient of friction of the surface resulting in an improved feel and reduced stroke length to achieve the correct or desired distance.
Claims20
A method of finishing a golf club of the type having a head defining a front face adapted to engage a golf ball, said method comprising the steps of:
- cleaning the front face of the head to remove dirt, paint, corrosion, oxidation or plating therefrom;
- finish machining the front face so that it is substantially flat;
- and
- forming a pattern in the front face by an electrical discharge machining process which heat treats the face, reduces the surface area of the club face which contacts the ball and increases substantially the coefficient of friction of the face, said pattern including a plurality of intersecting lines which define a plurality of pits.
A golf club comprising:
- a shaft;
- a club head secured to said shaft, said club head defining a golf ball striking surface, said surface being substantially flat and having a flatness deviation of less than 0.005 inches, said surface further having a pattern thereon having structural characteristics corresponding to those resulting from machining a surface by an electrical discharge making process which reduces surface contact area, increases the coefficient of friction of the surface, and increases surface hardness.
Dependencies are inferred from the claim text.