# US 12,005,324 B1 · Low drag golf club head with improved mass properties > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,324 B1 - Document ID: US12005324B1 - Status: Granted - Kind: B1 - Application number: 17/988,476 - Filed: 2022-11-16 - Granted: 2024-06-11 - Earliest claimed: 2017-11-07 - Assignees: Cobra Golf Incorporated - Applicants: Cobra Golf Incorporated - Inventors: D. Clayton Evans; Michael S. Yagley - Web page: https://patentgrep.com/patent/US12005324B1 ## CPC - A63B 1/00: Horizontal bars - A63B 53/0466: {wood-type} - A63B 53/0437: {with special crown configurations} - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B 2209/00: Characteristics of used materials - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf club head includes a body that defines an internal cavity, a toe side, a heel side, a front side, an aft side, a top side, and a bottom side. The body includes a crown, a sole portion, and a hosel. When the golf club head is at address, the golf club head defines a rectangular volume that intersects outermost points on the toe side, the heel side, the front side, the aft side, the top side, and the bottom side of the body. The body of the golf club head defines eighteen heel-toe cross sections that are arranged parallel to a y-z plane and spaced evenly along a heel-toe direction within the rectangular volume. An average value of the centroid height of a first heel-toe cross section, a second heel-toe cross section, and a third heel-toe cross section is less than about 40 millimeters. ## Claims ### Claim 1 A golf club head, comprising: a body defining an internal cavity, a toe side, a heel side, a front side, an aft side, a top side, and a bottom side, the body including: a crown portion extending along the top side of the body; a sole portion extending along the bottom side of the body; and a hosel extending from the heel side of the body, wherein the hosel defines a hosel axis that intersects a ground plane at a ground intersection point, wherein a ball-striking face is positioned on the front side of the body, wherein, when the golf club head is at address, the golf club head defines a rectangular volume that intersects outermost points on the toe side, the heel side, the front side, the aft side, the top side, and the bottom side of the body, the rectangular volume defining a coordinate system, wherein the coordinate system includes an x-y plane, a y-z plane, and a x-z plane, wherein the x-y plane is parallel to the ground plane, the y-z plane extends in a front-aft direction, and the x-z plane extends in a heel-toe direction, wherein an origin of the coordinate system is arranged at a front, toe, bottom corner of the rectangular volume, wherein the body of the golf club head defines eighteen heel-toe cross sections that are arranged parallel to the y-z plane and spaced evenly along the heel-toe direction within the rectangular volume, a first heel-toe cross section being arranged adjacent to the toe side and an eighteenth heel-toe cross section being arranged adjacent to the heel side, wherein each of the heel-toe cross sections is arranged perpendicular to the x-y plane and the x-z plane, wherein each of the heel-toe cross sections comprises a centroid and a total cross-sectional area of the body, wherein each of the centroids of the heel-toe cross sections comprises a centroid height in a direction normal to the x-y plane, wherein an average value of the centroid height of the first heel-toe cross section, a second heel-toe cross section, and a third heel-toe cross section is less than 40 millimeters and greater than 37 millimeters, wherein an average value of the centroid height of a fourteenth heel-toe cross section, a fifteenth heel-toe cross section, and a sixteenth heel-toe cross section is less than 31 millimeters, and wherein an average value of the total cross-sectional area of the body defined by an eighth heel-toe cross section, a ninth heel-toe cross section, and a tenth heel-toe cross section is greater than 5700 square millimeters and less than 6150 square millimeters. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein the average value of the total cross-sectional area of the body defined by the eighth heel-toe cross section, the ninth heel-toe cross section, and the tenth heel-toe cross section is greater than 5800 square millimeters and less than 6150 square millimeters. ### Claim 3 (depends on 1) The golf club head of claim 1, wherein the centroid height of the first heel-toe cross section is larger than the centroid height of the second heel-toe cross section. ### Claim 4 (depends on 3) The golf club head of claim 3, wherein the centroid height of the second heel-toe cross section is larger than the centroid height of the third heel-toe cross section. ### Claim 5 (depends on 1) The golf club head of claim 1, wherein the ball-striking face is coupled to the body. ### Claim 6 (depends on 1) The golf club head of claim 1, wherein the centroid height of the first heel-toe cross section is less than 41 millimeters and the centroid height the sixteenth heel-toe cross section is less than 31.5 millimeters. ### Claim 7 (depends on 1) The golf club head of claim 1, wherein the crown portion includes a vertex point adjacent to the hosel that defines a vertex height in a direction normal to the ground plane, and wherein the vertex height is less than 75% of a maximum height of the body. ### Claim 8 (depends on 7) The golf club head of claim 7, wherein the body further comprises a skirt portion that extends along a perimeter of the aft side of the body between the crown portion and the sole portion, wherein the skirt portion includes a distalmost point along the toe side of the body, and wherein a height of the distalmost point in a direction normal to the ground plane is less than 65% of the maximum height of the body. ### Claim 9 A golf club head, comprising: a body defining an internal cavity, a toe side, a heel side, a front side, an aft side, a top side, and a bottom side, the body including: a crown portion extending along the top side of the body; a sole portion extending along the bottom side of the body; and a hosel extending from the heel side of the body, wherein the hosel defines a hosel axis that intersects a ground plane at a ground intersection point, wherein a ball-striking face is positioned on the front side of the body, wherein, when the golf club head is at address, the golf club head defines a rectangular volume that intersects outermost points on the toe side, the heel side, the front side, the aft side, the top side, and the bottom side of the body, the rectangular volume defining a coordinate system, wherein the coordinate system includes an x-y plane, a y-z plane, and a x-z plane, wherein the x-y plane is parallel to the ground plane, the y-z plane extends in a front-aft direction, and the x-z plane extends in a heel-toe direction, wherein an origin of the coordinate system is arranged at a front, toe, bottom corner of the rectangular volume, wherein the body of the golf club head defines eighteen heel-toe cross sections that are arranged parallel to the y-z plane and spaced evenly along the heel-toe direction within the rectangular volume, a first heel-toe cross section being arranged adjacent to the toe side and an eighteenth heel-toe cross section being arranged adjacent to the heel side, wherein each of the heel-toe cross sections is arranged perpendicular to the x-y plane and the x-z plane, wherein each of the heel-toe cross sections comprises a centroid, wherein each of the centroids of the heel-toe cross sections comprises a centroid height in a direction normal to the x-y plane, wherein an average value of the centroid height of the first heel-toe cross section, a second heel-toe cross section, and a third heel-toe cross section is less than 40 millimeters and greater than 37 millimeters, and wherein an average value of the centroid height of a fourteenth heel-toe cross section, a fifteenth heel-toe cross section, and a sixteenth heel-toe cross section is less than 31 millimeters. ### Claim 10 (depends on 9) The golf club head of claim 9, wherein the centroid height of the first heel-toe cross section is less than 41 millimeters and the centroid height of the sixteenth heel-toe cross section is less than 31.5 millimeters. ### Claim 11 (depends on 9) The golf club head of claim 9, wherein each of the heel-toe cross sections comprises a total cross-sectional area of the body, and wherein an average value of the total cross-sectional area of the body defined by an eighth heel-toe cross section, a ninth heel-toe cross section, and a tenth heel-toe cross section is greater than 5800 square millimeters. ### Claim 12 (depends on 11) The golf club head of claim 11, wherein the average value of the total cross-sectional area of the body defined by the eighth heel-toe cross section, the ninth heel-toe cross section, and the tenth heel-toe cross section is greater than 5900 square millimeters. ### Claim 13 (depends on 9) The golf club head of claim 9, wherein the crown portion includes a crown plate, and wherein the ball-striking face is coupled to the body. ### Claim 14 (depends on 13) The golf club head of claim 13, wherein the body further comprises a skirt portion that extends along a perimeter of the aft side of the body between the crown portion and the sole portion, and wherein the skirt portion is formed by the crown plate. ### Claim 15 (depends on 9) The golf club head of claim 9, further comprising a weight coupled to the sole portion. ### Claim 16 A golf club head, comprising: a body defining an internal cavity, a toe side, a heel side, a front side, an aft side, a top side, and a bottom side, the body including: a crown portion extending along the top side of the body; a sole portion extending along the bottom side of the body; and a hosel extending from the heel side of the body, wherein the hosel defines a hosel axis that intersects a ground plane at a ground intersection point, wherein a ball-striking face is positioned on the front side of the body, wherein, when the golf club head is at address, the golf club head defines a rectangular volume that intersects outermost points on the toe side, the heel side, the front side, the aft side, the top side, and the bottom side of the body, the rectangular volume defining a coordinate system, wherein the coordinate system includes an x-y plane, a y-z plane, and a x-z plane, wherein the x-y plane is parallel to the ground plane, the y-z plane extends in a front-aft direction, and the x-z plane extends in a heel-toe direction, wherein an origin of the coordinate system is arranged at a front, toe, bottom corner of the rectangular volume, wherein the body of the golf club head defines eighteen heel-toe cross sections that are arranged parallel to the y-z plane and spaced evenly along the heel-toe direction within the rectangular volume, a first heel-toe cross section being arranged adjacent to the toe side and an eighteenth heel-toe cross section being arranged adjacent to the heel side, wherein each of the heel-toe cross sections is arranged perpendicular to the x-y plane and the x-z plane, wherein each of the heel-toe cross sections comprises a total cross-sectional area of the body, wherein an average value of the total cross-sectional area of the body defined by an eighth heel-toe cross section, a ninth heel-toe cross section, and a tenth heel-toe cross section is greater than 5800 square millimeters and less than 6150 square millimeters, and wherein the total cross-sectional area of the body defined by a sixth heel-toe cross section is greater than 5150 square millimeters. ### Claim 17 (depends on 16) The golf club head of claim 16, wherein each of the heel-toe cross sections comprises a centroid, and wherein each of the centroids of the heel-toe cross sections comprises a centroid height in a direction normal to the x-y plane. ### Claim 18 (depends on 17) The golf club head of claim 17, wherein an average value of the centroid height of the first heel-toe cross section, a second heel-toe cross section, and a third heel toe-cross section is less than 40 millimeters. ### Claim 19 (depends on 18) The golf club head of claim 18, wherein an average value of the centroid height of a fourteenth heel-toe cross section, a fifteenth heel-toe cross section, and a sixteenth heel-toe cross section is less than 35 millimeters. ### Claim 20 (depends on 16) The golf club head of claim 16, wherein the ninth heel-toe cross section has a highest total cross-sectional area of the body, and wherein the total cross-sectional area of the body defined by the ninth heel-toe cross section is greater than 5900 square millimeters.