Golf club
First Claim
1. A golf club head for a wood-type golf club to be swung at high velocities comprising:
- a club head having a ball striking face, a rear face, a heel, a toe, a top surface and a bottom, the ball striking face being made to strike a golf ball and having a height which is at least 50% of the distance between the top surface and the bottom surface of the club head;
aerodynamic means for (1) raising the pressure at the rear of the club head and thus reducing the aerodynamic drag on the club head to provide greater acceleration for increased club head speed for a given force when swinging the club, (2) increasing the aerodynamic lift on the club head to provide a lighter swing feel, and (3) stabilizing the club head during its swing and at impact with the ball to provide improved directional control;
said aerodynamic means including an elongated, deep cavity having side walls and a bottom surface which form an air channel of sufficient depth and width to channel, retain and exhaust a high energy flow of air directly behind the club head;
said cavity being located in the top surface of said club head and extending substantially perpendicular to and rearwardly from adjacent said ball striking face to said rear face and forming two elongated top edges at the juncture with said top surface of said club head, said edges providing a stabilizing effect on the flow of air by defining flow lines independent of club head speed;
said cavity including an air flow restriction formed between said ball striking face and said rear face and serving to accelerate the flow of air through said cavity; and
said cavity having a depth of at least 1/4 inch and a width of at least 1/2 inch along a substantial portion of the cavity;
whereby the flow of high energy air through said cavity, when the club head is swung at high velocities, raises the pressure at the rear of the club head and acts as a vertical stabilizer which tends to maintain a square face alignment of the club head.
0 Assignments
0 Petitions
Accused Products
Abstract
A wood-type golf club with a club head having an improved aerodynamic shape to reduce drag, increase club head lift, improve sensation and control as the club head is swung and increase club head stability at impact, the club head having a deep, channel-shaped cavity formed in the top surface of the club extending rearwardly from the ball striking face. The cavity includes an ari flow restriction formed between the ball striking face and the rear face. The cavity is defined by various parameters including width and depth wherein the width of the cavity is substantially greater than the depth, the depth being at least 1/4 inch from the top surface of the club head and the width being at least 1/2 inch.
102 Citations
37 Claims
-
1. A golf club head for a wood-type golf club to be swung at high velocities comprising:
-
a club head having a ball striking face, a rear face, a heel, a toe, a top surface and a bottom, the ball striking face being made to strike a golf ball and having a height which is at least 50% of the distance between the top surface and the bottom surface of the club head; aerodynamic means for (1) raising the pressure at the rear of the club head and thus reducing the aerodynamic drag on the club head to provide greater acceleration for increased club head speed for a given force when swinging the club, (2) increasing the aerodynamic lift on the club head to provide a lighter swing feel, and (3) stabilizing the club head during its swing and at impact with the ball to provide improved directional control; said aerodynamic means including an elongated, deep cavity having side walls and a bottom surface which form an air channel of sufficient depth and width to channel, retain and exhaust a high energy flow of air directly behind the club head; said cavity being located in the top surface of said club head and extending substantially perpendicular to and rearwardly from adjacent said ball striking face to said rear face and forming two elongated top edges at the juncture with said top surface of said club head, said edges providing a stabilizing effect on the flow of air by defining flow lines independent of club head speed; said cavity including an air flow restriction formed between said ball striking face and said rear face and serving to accelerate the flow of air through said cavity; and said cavity having a depth of at least 1/4 inch and a width of at least 1/2 inch along a substantial portion of the cavity; whereby the flow of high energy air through said cavity, when the club head is swung at high velocities, raises the pressure at the rear of the club head and acts as a vertical stabilizer which tends to maintain a square face alignment of the club head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification