Patent ID: 8858359

Claim:
A high volume aerodynamic golf club head comprising: A) a hollow body ( 110 ) having a club head volume of at least 400 cc, a face ( 200 ), a sole section ( 300 ), a crown section ( 400 ), a front ( 112 ), a back ( 114 ), a heel ( 116 ), and a toe ( 118 ), wherein i) the hollow body ( 110 ) has a bore having a center that defines a shaft axis (SA) which intersects with a horizontal ground plane (GP) to define an origin point; and ii) the hollow body ( 110 ) has a center of gravity (CG) located: (a) vertically toward the crown section ( 400 ) from the origin point a distance Ycg in a direction orthogonal to the ground plane (GP), and vertically toward the crown section ( 400 ) from a horizontal center face plane (HCFP) a distance Vcg in a direction orthogonal to the horizontal center face plane (HCFP); (b) horizontally from the origin point toward the toe ( 118 ) a distance Xcg that is parallel to a vertical plane defined by the shaft axis (SA) and parallel to the ground plane (GP); and (c) a distance Zcg from the origin toward the back ( 114 ) in a direction orthogonal to the vertical direction used to measure Ycg and orthogonal to the horizontal direction used to measure Xcg; B) the face ( 200 ) having a top edge ( 210 ) and a lower edge ( 220 ), wherein a top edge height (TEH) is the elevation of the top edge ( 210 ) above the ground plane (GP) when the high volume aerodynamic golf club head ( 100 ) is positioned in a design orientation, and a lower edge height (LEH) is the elevation of the lower edge ( 220 ) above the ground plane (GP) when the high volume aerodynamic golf club head ( 100 ) is positioned in a design orientation; and C) the crown section ( 400 ) having a 12 degree pitched up orientation crown apex ( 610 ) and defining a 12 degree pitched up/8 mm drop contour area (CA), wherein; i) the 12 degree pitched up orientation crown apex ( 610 ) is located at the peak height of the crown section ( 400 ) when the hollow body is positioned in a 12 degree pitched up orientation that includes an absolute lie angle of 55 degrees, a face angle of 0 degrees, and a pitch angle of 12 degrees up; ii) the 12 degree/8 mm drop contour area (CA) is defined as the cross-sectional area of an intersection of the crown section ( 400 ) with an offset plane located at an elevation that is 8 mm below the 12 degree pitched up orientation crown apex ( 610 ) and parallel to the ground plane (GP) when the hollow body is positioned in the 12 degree pitched up orientation; D) wherein the hollow body ( 110 ) has a projected area of the face portion (A f ) of between 8.3 square inches and 11.25 square inches, and wherein the 12 degree pitched up/8 mm drop contour area (CA) is less than 6.5 square inches and greater than the following linear expression: CA=− 1.5395 *A f +19.127.