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US 12,708,821 B2Granted
Golf club head with transition profiles to reduce aerodynamic drag
AssigneeKarsten Manufacturing Corporation
InventorsRyan M. Stokke, Sina Ghods, Cory S. Bacon
Life of this patent
Estimating the term…
Abstract
Embodiments of golf club heads having transition profiles to reduce aerodynamic drag during a swing are described herein. In some embodiments, a golf club head includes a crown transition profile having a first crown radius of curvature, a sole transition profile having a first sole radius of curvature, and a rear transition profile having a rear radius of curvature.
Claims14
A golfclub head, comprising:
- a strike face having a top edge, a bottom edge, and a geometric center, the strike face defining a loft plane positioned tangent to the strike face and extending through the geometric center;
- and
- a body including:
- a front end, a back end opposite the front end;
- a heel, a toe opposite the heel;
- a crown including a crown apex and a crown transition profile between the top edge of the strike face and the crown apex, the crown transition profile having a first crown radius of curvature extending from the top edge of the strike face to a first crown transition point, and a major crown transition point positioned between the first crown transition point and the crown apex, wherein the first crown radius of curvature is between 0.18 inch and 0.30 inch;
- a first plurality of crown radii of curvature between the first crown transition point and the major crown transition point;
- and a second plurality of crown radii of curvature between the major crown transition point and the crown apex;
- a rear transition profile positioned between a first transition point, and a second transition point, the rear transition profile having a rear radius of curvature between approximately 0.10 inch and 0.25 inch;
- wherein each radii of the first plurality of crown radii is less than each radii of the second plurality of crown radii;
- a radius of curvature measured at the crown apex is between 2.5 inches and 3.0 inches;
- wherein:
- the golf club head defines a ground plane when the golf club head is at an address position;
- wherein the crown apex is above the ground plane by an apex height, measured perpendicular to the ground plane, wherein the apex height is between 2 inches and 3 inches;
- the major crown transition point is positioned at a major offset distance of less than 0.5 inches from the loft plane;
- the first plurality of crown radii of curvature between the first crown transition point and the major crown transition point is less than 2.0 inches;
- and
- the second plurality of crown radii of curvature between the major crown transition point and the crown apex is between 2.0 inches and 3.0 inches.
15 more elements
A golf club head, comprising:
- a strike face having a top edge, a bottom edge, and a geometric center, the strike face defining a loft plane positioned tangent to the strike face and extending through the geometric center;
- and
- a body including:
- a front end, a back end opposite the front end;
- a heel, a toe opposite the heel;
- a crown including a crown apex and a crown transition profile between the top edge of the strike face and the crown apex, the crown transition profile having a first crown radius of curvature extending from the top edge of the strike face to a first crown transition point, and a major crown transition point positioned between the first crown transition point and the crown apex, wherein the first crown radius of curvature is between 0.18 inch and 0.30 inch;
- a first plurality of crown radii of curvature between the first crown transition point and the major crown transition point;
- and a second plurality of crown radii of curvature between the major crown transition point and the crown apex;
- a sole including a lowest point and a sole transition profile, the sole transition profile having a first sole radius of curvature extending from the bottom edge of the strike face to a first sole transition point, wherein the first sole radius of curvature is between 0.25 inch and 0.5 inch;
- wherein each radii of the first plurality of crown radii is less than each radii of the second plurality of crown radii;
- a radius of curvature measured at the crown apex is between 2.5 inches and 3.0 inches;
- wherein:
- the golf club head defines a ground plane when the golf club head is at an address position;
- wherein the crown apex is above the ground plane by an apex height, measured perpendicular to the ground plane, wherein the apex height is between 2 inches and 3 inches;
- the major crown transition point is positioned at a major offset distance of less than 0.5 inch from the loft plane;
- the first plurality of crown radii of curvature between the first crown transition point and the major crown transition point is less than 2.0 inches;
- and
- the second plurality of crown radii of curvature between the major crown transition point and the crown apex is between 2.0 inches and 3.0 inches.
15 more elements
A golf club head, comprising:
- a strike face having a top edge, a bottom edge, and a geometric center, the strike face defining a loft plane positioned tangent to the strike face and extending through the geometric center;
- and
- a body including:
- a front end, a back end opposite the front end;
- a heel, a toe opposite the heel;
- a crown including a crown apex and a crown transition profile between the top edge of the strike face and the crown apex, the crown transition profile having a first crown radius of curvature extending from the top edge of the strike face to a first crown transition point, and a major crown transition point positioned between the first crown transition point and the crown apex, wherein the first crown radius of curvature is between 0.18 inch and 0.30 inch;
- a first plurality of crown radii of curvature between the first crown transition point and the major crown transition point;
- and a second plurality of crown radii of curvature between the major crown transition point and the crown apex;
- a sole including a lowest point and a sole transition profile, the sole transition profile having a first sole radius of curvature extending from the bottom edge of the strike face to a first sole transition point, wherein the first sole radius of curvature is between 0.25 inch and 0.5 inch;
- a rear transition profile positioned between a first transition point, and a second transition point, the rear transition profile having a rear radius of curvature between approximately 0.10 inch and 0.25 inch;
- wherein each radii of the first plurality of crown radii is less than each radii of the second plurality of crown radii;
- a radius of curvature measured at the crown apex is between 2.5 inches and 3.0 inches;
- wherein:
- the golf club head defines a ground plane when the golf club head is at an address position;
- wherein the crown apex is above the ground plane by an apex height, measured perpendicular to the ground plane, wherein the apex height is between 2 inches and 3 inches;
- the major crown transition point is positioned at a major offset distance of less than 0.5 inch from the loft plane;
- the first plurality of crown radii of curvature between the first crown transition point and the major crown transition point is less than 2.0 inches;
- and
- the second plurality of crown radii of curvature between the major crown transition point and the crown apex is between 2.0 inches and 3.0 inches.
16 more elements
Dependencies are inferred from the claim text.