GOLF CLUB HEAD
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Accused Products
Abstract
A club head for a golf club comprises a strike face and an outer shell. The strike face and the outer shell define a head volume of the club head. The club head has a first axis that extends generally horizontally and parallel to the strike face, a first moment of inertia about the first axis, a second axis that lies generally vertically and perpendicular to the first axis, a second moment of inertia about the second axis, and a center of gravity lying below a horizontal centerline of the club head. The first moment of inertia in units of kg-mm2 is greater than or equal to approximately 77 plus 0.46 times the head volume in units of cm3.
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Citations
74 Claims
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1-29. -29. (canceled)
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30. :
- A golf club head comprising;
an outer shell;
a strike plate coupled to the outer shell, the strike plate having a strike face, the outer shell and the strike face defining a club head volume greater than 300 cm3;
a heel/toe axis extending through a center of gravity of the club head, generally parallel to the strike face, and generally horizontal relative to a ground plane when the club head is at an address position, wherein a rotational moment of inertia about the heel/toe axis is related to the club head volume by the equation Ixx≧
0.46*HV+107, where Ixx is the rotational moment of inertia about the heel/toe axis in units of kg-mm2 and HV is the club head volume in units of cm3; and
a vertical axis extending through the center of gravity of the club head generally perpendicular to the heel/toe axis, wherein a rotational moment of inertia about the vertical axis is greater than or equal to 300 kg-mm2. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
- A golf club head comprising;
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67. :
- A golf club head comprising;
an outer shell;
a strike plate coupled to the outer shell, the strike plate having a strike face, the outer shell and the strike face defining a club head volume greater than 300 cm3;
a plurality of weights attached to or integrally formed with the outer shell, the plurality of weights formed from a material having a density greater than that of the materials used to form the outer shell and the strike plate, wherein the plurality of weights comprise about 10 percent to about 40 percent of the total mass of the club head;
a heel/toe axis extending through a center of gravity of the club head, generally parallel to the strike face, and generally horizontal relative to a ground plane when the club head is at an address position, wherein a rotational moment of inertia about the heel/toe axis is related to the club head volume by the equation Ixx≧
0.46*HV+107, where Ixx is the rotational moment of inertia about the heel/toe axis in units of kg-mm2 and HV is the club head volume in units of cm3; and
a vertical axis extending through the center of gravity of the club head generally perpendicular to the heel/toe axis, wherein a rotational moment of inertia about the vertical axis is greater than or equal to 300 kg-mm2; and
a hosel axis extending axially through the hosel, wherein a horizontal distance measured between the center of gravity and the hosel axis is less than 30 mm;
wherein the club head has a total mass within a range of about 180 grams to about 250 grams.
- A golf club head comprising;
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68-1. The golf club head of claim 68, wherein the center of gravity is disposed at least 1 mm below the horizontal centerline of the club head.
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69. :
- The golf club head of claim 69, wherein the center of gravity is disposed more than 2 mm below the horizontal centerline of the club head.
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71. :
- The golf club head of claim 71, wherein the horizontal distance measured between the center of gravity and the hosel axis is between about 16 mm to about 20 mm.
Specification