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US 7,166,038 B2Granted
Golf club head
AssigneeCallaway Golf Company
InventorsLuke R. Williams, Larry G. Tang, Daniel M. Stevens, Ronald K. Hettinger, Michael Hallack, Evan D. Gibbs, Alan Hocknell, Matthew T. Cackett
Life of this patent
Estimating the term…
Abstract
A golf club head (42) having a substantially square or rectangular body is disclosed herein. The golf club head (42) preferably has a volume ranging from 420 cubic centimeters to 470 cubic centimeters. The golf club head (42) preferably has a moment of inertia about the Izz axis through the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia about the Ixx axis through the center of gravity of the golf club head greater than 3000 grams-centimeters squared.
Claims17
A wood-type golf club head comprising:
- a crown, a sole and a front wall having a perimeter;
- a heel wall extending 2.0 inches to 5.0 inches rearward from the perimeter of the front wall;
- an aft wall substantially perpendicular to the heel wall, the aft wall extending from 2.5 inches to 5.5 inches from an aft edge of the heel wall;
- and
- a toe wall substantially perpendicular to the aft wall, the toe wall extending from 2.0 inches to 5.0 inches from an aft edge of the toe wall;
- wherein the crown, the sole, the front wall, the heel wall, the aft wall and the toe wall define a hollow interior;
- wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a coefficient of restitution ranging from 0.825 to 0.883, and a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared.
4 more elements
A wood-type golf club head comprising:
- a body having a face, a crown, a sole, a heel wall, an aft wall, and a toe wall, the body having a hollow interior;
- wherein the body has a volume ranging from 350 cubic centimeters to 500 cubic centimeters;
- wherein each of the rear wall, the toe wall and the heel wall is substantially straight;
- wherein the golf club head has a coefficient of restitution ranging from 0.825 to 0.883, amass ranging from 180 grams to 215 grams, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared.
1 more element
A golf club head comprising:
- a face component composed of a first material, the face component comprising a striking plate portion and a return portion, the return portion extending a distance ranging from 0.25 inch to 1.5 inches from a perimeter of the striking plate portion;
- and
- a substantially square aft-body coupled to the return portion of the face component, the aft-body composed of a second material having a density less than that of the first material, the aft-body comprising a crown portion, a sole portion, the sole portion having a bottom section and a ribbon section, the ribbon section being located between the crown portion and the bottom section of the sole portion;
- wherein the golf club head is substantially square;
- wherein the golf club head has a coefficient of restitution ranging from 0.825 to 0.883, a mass ranging from 180 grams to 215 grams, a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared.
2 more elements
A wood-type golf club head comprising:
- a substantially square body comprising a crown, a sole, a ribbon and a striking plate, the striking plate having a face area ranging from 7.0 square inches to 9.0 square inches;
- wherein the golf club head has a volume less than 460 cubic centimeters, a coefficient of restitution ranging from 0.825 to 0.883, a mass ranging from 190 grams to 225 grams, a moment of inertia about the Izz axis through the center of gravity of the golf club head ranging from 4000 grams-centimeters squared to 5000 grams-centimeters squared, and a moment of inertia about the Ixx axis through the center of gravity of the golf club head greater than 3000 grams-centimeters squared.
A wood-type golf club head comprising:
- a face component composed of a first material, the face component comprising a striking plate portion and a return portion, the return portion extending rearward from a perimeter of the striking plate portion, the return portion comprising a heel lateral section and a toe lateral section;
- and
- an aft-body coupled to the return portion of the face component, the aft-body composed of a second material having a density less than that of the first material, the aft-body comprising a crown portion, a sole portion, the sole portion having a bottom section and a ribbon section, wherein the bottom section of the sole portion has a first keel point, an inward curvature and a second keel point;
- wherein the heel lateral section of the return portion and a heel end of the ribbon section of the sole portion of the aft-body define a heel wall of the golf club head and the toe lateral section of the return portion and a toe end of the ribbon section of the sole portion of the aft-body define a toe wall of the golf club head, the heel wall extends rearward from a perimeter of the striking plate portion a distance of least 90% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the strike plate portion, and the toe wall is substantially parallel to the heel wall;
- and
- wherein the golf club head has a volume less than 460 cubic centimeters, a coefficient of restitution ranging from 0.825 to 0.883, a mass ranging from 190 grams to 225 grams, a moment of inertia about the Izz axis through the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia about the Ixx axis through the center of gravity of the golf club head greater than 3000 grams-centimeters squared.
3 more elements
A wood-type golf club head comprising:
- a front wall having a perimeter;
- a heel wall extending rearward from the perimeter of the front wall a distance of least 66% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the front wall;
- an aft wall extending from 2.5 inches to 4.5 inches from an aft edge of the heel wall;
- and
- a toe wall extending rearward from the perimeter of the front wall a distance of least 66% of the length of the toe wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the front wall;
- wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a coefficient of restitution ranging from 0.825 to 0.883, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, a moment of inertia, Ixx, about the center of gravity of the golf club head ranging from 2500 grams-centimeters squared to 3750 grams-centimeters squared and a moment of inertia. Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared.
3 more elements
Dependencies are inferred from the claim text.