# US 10,118,075 B2 · Golf club heads with ribs and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,075 B2 - Document ID: US10118075B2 - Status: Granted - Kind: B2 - Application number: 15/631,483 - Filed: 2017-06-23 - Published: 2017-10-05 - Granted: 2018-11-06 - Earliest claimed: 2013-10-02 - Assignees: Karsten Manufacturing Corporation - Applicants: Karsten Manufacturing Corporation - Inventors: Eric V. Cole; Martin R. Jertson - Web page: https://patentgrep.com/patent/US10118075B2 ## CPC - A63B 53/0466: {wood-type} - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0433: {with special sole configurations} - A63B 53/0437: {with special crown configurations} - A63B 53/045: {Strengthening ribs} - A63B 60/002: {Resonance frequency related characteristics} - 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 including a first rib protruding from a rib surface of the body. The first rib comprises a first and second rib end and a first, second, and third rib portion. The third rib portion is located between the first rib portion and the second rib portion. The first, second, and third rib portions include a first, second, and third rib portion dimension, where the first and second rib portion dimensions are greater than the third rib portion dimension. ## Claims ### Claim 1 A golf club head comprising: a body comprising: a heel end, a toe end, a crown, a sole, a front end, and a rear end; and at least one of a skirt or a hosel; and a first rib protruding from a rib surface of the body; wherein: the first rib comprises: first and second first-rib ends opposite each other; and first, second, and third first-rib portions protruded from the rib surface of the body; the first first-rib portion is located between the first first-rib end and the third first-rib portion; the second first-rib portion is located between the second first-rib end and the third first-rib portion; the first first-rib portion comprises a first first-rib thickness substantially parallel to the rib surface; the second first-rib portion comprises a second first-rib thickness substantially parallel to the rib surface; the third first-rib portion comprises a third first-rib thickness substantially parallel to the rib surface; and the first and second first-rib thicknesses are greater than the third first-rib thickness; wherein the first first-rib portion is located either at the crown or the sole; wherein the second first-rib portion is located either at the crown or the sole, but not in the same location as the first first-rib portion. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein: the first first-rib portion further comprises a first first-rib height substantially orthogonal to the rib surface; the second first-rib portion further comprises a second first-rib height substantially orthogonal to the rib surface; the third first-rib portion further comprises a third first-rib height substantially orthogonal to the rib surface; and the first and second first-rib heights are greater than the third first-rib height. ### Claim 3 (depends on 1) The golf club head of claim 1, wherein: a maximum first-rib height of the first rib, measured orthogonal to the rib surface, is up to approximately 6 mm. ### Claim 4 (depends on 1) The golf club head of claim 1, wherein: at least one of the first or second first-rib thickness is approximately 1.1 times to approximately 8 times greater than the third first-rib thickness. ### Claim 5 (depends on 1) The golf club head of claim 1, wherein: the first rib protrudes from the rib surface and extends continuously from the crown to the sole of the body. ### Claim 6 (depends on 1) The golf club head of claim 1, wherein: the skirt is located between the crown and the sole; and the first rib protrudes from the rib surface along at least a portion of the skirt. ### Claim 7 (depends on 1) The golf club head of claim 1, wherein: the first rib comprises: a first rib center section comprising 95% of a first rib length of the first rib and centered about a first rib centerpoint of the first rib length; the first rib center section comprises: the first first-rib thickness of the first first-rib portion; the second first-rib thickness of the second first-rib portion; and the third first-rib thickness of the third first-rib portion; and the third first-rib thickness protrudes from the rib surface between the first first-rib portion and the second first-rib portion. ### Claim 8 (depends on 7) The golf club head of claim 7, wherein: the third first-rib thickness is a minimum first-rib thickness of the first rib center section. ### Claim 9 (depends on 1) The golf club head of claim 1, wherein: the rib surface comprises a first high amplitude zone at a first one of the crown, the sole, or the skirt; the third first-rib portion is located at the first high amplitude zone; and the first and second first-rib portions are located outside the first high amplitude zone. ### Claim 10 (depends on 9) The golf club head of claim 9, wherein: the first high amplitude zone comprises a location at the first one of the crown, the sole, or the skirt where a maximum oscillation amplitude of the body exists upon a golf shot impact between a golf ball and a strikeface of the front end of the body. ### Claim 11 (depends on 10) The golf club head of claim 10, wherein: the first high-amplitude zone, for the location of the third first-rib portion, is defined with respect to where the maximum oscillation amplitude is approximately 0.5 mm to approximately 4 mm, at a frequency of approximately 1000 Hz to approximately 5000 Hz, from the golf shot impact at an impact speed of approximately 25 m/s to approximately 75 m/s. ### Claim 12 (depends on 1) The golf club head of claim 1, wherein: the first rib comprises a fourth first-rib portion located between the second first-rib end and the second first-rib portion; the fourth first-rib portion comprises a fourth first-rib thickness substantially parallel to the rib surface; and the second first-rib thickness is greater than the fourth first-rib thickness. ### Claim 13 (depends on 12) The golf club head of claim 12, wherein: the rib surface comprises: a first high amplitude zone of the first one of the crown, the sole, or the skirt; and a second high amplitude zone of a second one of the crown, the sole, or the skirt; the third first-rib portion is located at the first high amplitude zone; the first and second first-rib portions are located outside the first high amplitude zone; the fourth first-rib portion is located at the second high amplitude zone; and the second first-rib portion is located outside the second high amplitude zone. ### Claim 14 (depends on 12) The golf club head of claim 12, wherein: the first rib comprises a fifth first-rib portion located between the second first-rib end and the fourth first-rib portion; the fifth first-rib portion comprises a fifth first-rib thickness substantially parallel to the rib surface; and the fifth first-rib thickness is greater than the fourth first-rib thickness. ### Claim 15 A method comprising: providing a body of a golf club head, the body comprising: a heel end, a toe end, a crown, a sole, a front end, and a rear end; and at least one of a skirt or a hosel; and providing a first rib protruding from a rib surface of the body; wherein: the first rib comprises: first and second first-rib ends opposite each other; and first, second, and third first-rib portions protruded from the rib surface of the body; the first first-rib portion is located between the first first-rib end and the third first-rib portion; the second first-rib portion is located between the second first-rib end and the third first-rib portion; the first first-rib portion comprises a first first-rib dimension comprising one of: a first first-rib height substantially orthogonal to the rib surface; or a first first-rib thickness substantially orthogonal to the first first-rib height; the second first-rib portion comprises a second first-rib dimension comprising: a second first-rib height substantially orthogonal to the rib surface when the first first-rib dimension comprises the first first-rib height; or a second first-rib thickness substantially orthogonal to the second first-rib height when the first first-rib dimension comprises the first first-rib thickness; the third first-rib portion comprises a third first-rib dimension comprising: a third first-rib height substantially orthogonal to the rib surface when the first first-rib dimension comprises the first first-rib height; or a third first-rib thickness substantially orthogonal to the third first-rib height when the first first-rib dimension comprises the first first-rib thickness; and the first and second first-rib thicknesses are greater than the third first-rib thickness; wherein the first first-rib portion is located either at the crown or the sole: wherein the second first-rib portion is located either at the crown or the sole, but not in the same location as the first first-rib portion. ### Claim 16 (depends on 15) The method of claim 15, wherein: providing the first rib comprises: determining, from an FEA map of the body, a location of a maximum amplitude zone at a first one of the crown, the sole, or the skirt; locating the third first-rib dimension at the maximum amplitude zone; and locating the first and second first-rib dimensions located outside the maximum amplitude zone.