Golf club head
First Claim
1. A wood-type golf club head, comprising:
- a crown a sole; and
a face having an upper portion, a lower portion, a toe side edge, a heel side edge, and a bottom edge, said lower portion having a lower toe portion located towards a toe of the golf club head, a lower heel portion located towards a heel of the golf club head, and a center portion located between the lower toe portion and the lower heel portion and shaped substantially in the form of a trapezoid, said lower toe portion and said lower heel portion each (a) being substantially oval in shape, (b) having a side that is generally parabolic in shape, and (c) having a first substantially uniform thickness, said center portion and said upper portion having a second substantially uniform thickness, said second thickness being thicker than said first thickness, wherein said parabolic side of the lower toe portion extends from a point substantially on the toe side edge of the face to a first point substantially on the bottom edge of the face;
said parabolic side of the lower heel portion extends from a point substantially on the heel side edge of the face to a second point substantially on the bottom edge;
said center portion has a heel side that coincides with the side of the lower heel portion that is generally parabolic in shape, a toe side that coincides with the side of the lower toe portion that is generally parabolic in shape, and an upper side that coincides with at least a portion of a lower side of the upper portion;
said crown and sole are joined to form a cast body; and
said face is attached onto said cast body.
2 Assignments
0 Petitions
Accused Products
Abstract
A golf club head for hitting a golf ball farther than existing golf club heads and having a cast sole and a crown joined seamlessly as one piece with an opening for a face plate to be fitted into the body, and a face plate fabricated from sheet metal, precision cut by laser and precision formed in a die under extremely high pressure that includes a lower portion and an upper portion. The sole and crown part of the body are cast thinner than most other club heads to promote deformation when striking a golf ball. A parabolic shaped rise in both the crown and sole provide increased lateral strength while aiding in reducing the deformation of the ball at impact. The lower portion of the face has two end portions, and a center portion with the end portions having a first thickness. The center portion and the upper portion of the face have a second thickness that is thicker than the first thickness. In addition, the face plate is welded or bonded into a front opening of the cast body. The overall effect of this invention is to reduce deformation of the golf ball at impact, which reduces the energy lost as heat in the golf ball, resulting in farther drives.
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Citations
20 Claims
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1. A wood-type golf club head, comprising:
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a crown a sole; and
a face having an upper portion, a lower portion, a toe side edge, a heel side edge, and a bottom edge, said lower portion having a lower toe portion located towards a toe of the golf club head, a lower heel portion located towards a heel of the golf club head, and a center portion located between the lower toe portion and the lower heel portion and shaped substantially in the form of a trapezoid, said lower toe portion and said lower heel portion each (a) being substantially oval in shape, (b) having a side that is generally parabolic in shape, and (c) having a first substantially uniform thickness, said center portion and said upper portion having a second substantially uniform thickness, said second thickness being thicker than said first thickness, wherein said parabolic side of the lower toe portion extends from a point substantially on the toe side edge of the face to a first point substantially on the bottom edge of the face;
said parabolic side of the lower heel portion extends from a point substantially on the heel side edge of the face to a second point substantially on the bottom edge;
said center portion has a heel side that coincides with the side of the lower heel portion that is generally parabolic in shape, a toe side that coincides with the side of the lower toe portion that is generally parabolic in shape, and an upper side that coincides with at least a portion of a lower side of the upper portion;
said crown and sole are joined to form a cast body; and
said face is attached onto said cast body. - View Dependent Claims (2, 3)
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4. A wood-type golf club head, comprising:
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a sole portion;
a crown portion;
a face portion having;
an upper portion, a lower portion, a first side edge, a second side edge, a top center edge, and a bottom center edge, wherein, said lower portion has a lower toe portion located towards the toe of the golf club head, a lower heel portion located towards the heel of the golf club head, and a center portion located between the lower toe portion and the lower heel portion, whereinsaid upper portion extends from said top center edge a distance in a range of about one fourth to one half of the distance from said top center edge to said bottom center edge, said upper portion extends substantially the entire length of said face portion, said lower toe portion and said lower heel portion having a substantially uniform thickness in a range of about 0.0575 inches to 0.0625 inches, said center portion and said upper portion have a substantially uniform thickness in a range of about 0.725 inches to 0.0775 inches, said crown and sole are joined to form a cast body, and said face is attached onto said cast body.
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5. A wood-type golf club head, comprising:
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a sole portion;
a crown portion;
a face portion consisting of an upper portion and lower portion, wherein said lower portion consists of a lower toe portion located toward the toe of the golf club head, a lower heel portion located toward the heel of the golf club head, and a center portion located between the lower toe portion and the lower heel portion, said lower toe portion and said lower heel portion having a substantially parabolic curved side and having a thickness in a range of about 0.055 inches to 0.065 inches, and said center portion and said upper portion have a thickness in a range of about 0.070 inches to 0.080 inches, wherein said crown and sole are joined to form a cast body; and
said face is attached onto said cast body. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification