# US 2013/0157776 A1 · Grooves of golf club heads and methods to manufacture grooves of golf club heads > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0157776 A1 - Document ID: US20130157776A1 - Status: Published application - Kind: A1 - Application number: 13/761,778 - Filed: 2013-02-07 - Published: 2013-06-20 - Earliest claimed: 2011-09-30 - Assignees: Karsten Manufacturing Corporation - Inventors: Anthony D. Serrano; Paul D. Wood; Bradley D. Schweigert; Calvin S. Wang - Web page: https://patentgrep.com/patent/US20130157776A1 ## CPC - A63B 53/04: Heads - A63B 53/0466: {wood-type} - A63B 53/047: {iron-type} - A63B 53/0487: {for putters (A63B53/065 takes precedence)} - A63B 60/00: Details or accessories of golf clubs, bats, rackets or the like - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0416: {Heads having an impact surface provided by a face insert} - A63B 53/0445: {Details of grooves or the like on the impact surface} - Y10T 29/49: Method of mechanical manufacture - Y10T 29/49995: Shaping one-piece blank by removing material - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Embodiments of grooves of golf club heads and methods to manufacture grooves of golf club heads are generally described herein. Other embodiments may be described and claimed. ## Claims ### Claim 1 A golf club head comprising: body portion having a body toe portion, a body heel portion, a body top rail portion and a body sole portion; a club face on the body portion between the body toe portion and the body heel portion and between the body top rail portion and the body sole portion; and a plurality of grooves disposed on the club face, each groove comprising a groove heel portion proximate to the body heel portion and extending toward the body toe portion; a groove toe portion, proximate to the body toe portion and extending toward the body heel portion, and a groove center portion extending between the groove heel portion and the groove toe portion and including a deepest part of the groove; wherein a depth of each groove increases from, the groove, heel portion to the deepest part of the groove; wherein a depth of each groove increases from the groove toe portion to the deepest part of the groove; wherein depths of the grooves increase in a direction from the body top rail, portion to a generally central region on the club face between the body toe portion, the body heel portion, the body top rail portion and the body sole portion; and wherein depths of the grooves increase in a direction from the body sole portion to the generally central region. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein cross sectional configurations of at least two of the grooves vary between at least one of the body heel portion and the body toe portion or the body top rail portion and the body sole portion, ### Claim 3 (depends on 1) The golf club head of claim 1, wherein the grooves located between the central region and the body sole portion have a greater depth than the grooves located between the central region and the body top rail portion. ### Claim 4 (depends on 1) The golf club head of claim 1, wherein the grooves located between the central region and the body top rail portion have a greater depth than the grooves located between the central region and the body sole portion. ### Claim 5 (depends on 1) The golf club head of claim 1, wherein the club face is detachably attached to the body portion. ### Claim 6 (depends on 1) The golf club head of claim 1, wherein a portion of the club face including the center groove portion of the plurality of grooves is visually distinguishable from the rest of the club face to an individual viewing the club face. ### Claim 7 (depends on 1) The golf club head of claim 1, wherein a portion of the club face including the center groove portion of the plurality of grooves visually resembles a circle, an oval, a square, a diamond or a polygon to an individual viewing the club face. ### Claim 8 A method of manufacturing a golf club head comprising: forming a body portion defined by a body toe portion , a body heel portion a body top rail portion and a body sole portion; forming a club face, the club face located on the body portion between the body toe portion and the body heel portion and between the body top rail portion. and the body sole portion; forming a plurality of grooves on the club face, each groove comprising a groove heel portion proximate to the body heel portion and extending toward the body toe portion;, a groove toe portion proximate to the body toe portion and extending toward the body heel portion, and a groove center portion extending between the groove heel portion and the groove toe portion and including a deepest part of the groove; wherein forming the plurality of grooves comprises: forming each groove such that a depth of each groove increases from the groove heel portion to the deepest part of the groove; forming each groove such that a depth of each groove increases from, the groove toe portion to the deepest part of the groove; forming the plurality of grooves such that depths of the grooves increase in a direction from the body top rail portion to a generally central region on the club face between the body toe portion, the body heel portion, the body top rail portion and the body sole portion; and forming the plurality of grooves such that depths of the grooves increase in a direction from the body sole portion to the central region. ### Claim 9 (depends on 8) The method of claim 8, wherein forming the plurality of grooves comprises: forming the plurality of grooves such that a change in the depth of each groove between the groove center portion and the groove heel portion is greater than a change in the depth of the groove, along the groove center portion; forming the plurality of grooves such that a change in the depth of each groove between the groove center portion and the groove, heel portion is greater than a change in the depth of the groove along the groove heel portion; forming the plurality of grooves such that a change in the depth of each groove between the groove center portion and the groove toe portion is greater than a change in the depth of the groove along the groove center portion; and forming the plurality of grooves such that a change in the depth of each groove between the groove center portion and the groove toe portion is greater than a change in the depth of the groove along the groove toe portion. ### Claim 10 (depends on 8) The method of claim 8, wherein forming the plurality of grooves on the club face comprises forming the plurality of grooves such that cross sectional configurations of at least two of the grooves vary between at least one of the body heel portion and the body toe portion or the body top rail portion and the body sole portion. ### Claim 11 (depends on 8) The method of claim 8, wherein forming the plurality of grooves on the club face comprises forming the plurality of grooves such that the grooves located between the central region and the body sole portion have a greater depth than the grooves located between, the central region and the body top rail portion. ### Claim 12 (depends on 8) The method of claim 8, wherein forming the plurality of grooves on the club face comprises forming the plurality of grooves such that the grooves located between the central region of the face and the body top rail portion have a greater depth than the grooves located between the central region and the body sole portion. ### Claim 13 (depends on 8) The method of claim 8, further comprising forming the club face separately from the body portion and attaching the club face to the body portion. ### Claim 14 (depends on 8) The method of claim 8, wherein forming the plurality of grooves on the club thee comprises forming the plurality of grooves such that a portion of the club face including the center groove portion of the plurality of grooves is visually distinguishable from the rest of the club face to an individual viewing the club face. ### Claim 15 (depends on 8) The method of claim 8, wherein forming the plurality of grooves on the club face comprises forming the plurality of grooves such that a portion of the club face including the center groove portion of the plurality of grooves visually resembles a circle, an oval, a square, a diamond or a polygon to an individual viewing the club face. ### Claim 16 A golf club head comprising: a body portion having a body toe portion, a body heel portion, a body top rail portion and a body sole portion; a club face on the body portion between the body toe portion and the body heel portion and between the body top rail portion and the body sole portion; and a plurality of grooves disposed on the club face, each groove comprising a groove heel portion proximate to the body heel portion and extending toward the body toe portion; a groove toe portion proximate to the body toe portion and extending toward the body heel portion, and a groove center portion extending between the groove heel portion and the groove toe portion and including a deepest part of the groove; wherein a depth of each groove increases from the groove heel portion to the deepest part of the groove: wherein a depth of each groove increases from the groove toe portion to the deepest part of the groove; wherein depths of the grooves, increase in a direction from the body top rail portion to a generally central region on the club face between the body toe portion, the body heel portion, the body top rail portion and the body sole portion; wherein depths of the grooves increase in a direction from the body sole portion to the central region; wherein a change in the depth of each groove between the groove center portion and the groove heel portion is greater than a change in the depth of the groove along the groove center portion.; wherein a change in the depth of each groove between the groove center portion and the groove, heel portion is greater than a change in the depth of the groove along the groove heel portion; wherein a change in the depth of each groove between the groove center portion and the groove toe portion is greater than a change in the depth of the groove, along the groove center portion; and wherein a change in the depth of each groove between the groove center portion and the groove toe portion is greater than a change in the depth of the groove along the groove toe portion. ### Claim 17 (depends on 16) The golf club head of claim 16, wherein cross sectional configurations of at least two of the grooves vary between a least one of the body heel portion and the body toe portion or the body top rail portion and the body sole portion. ### Claim 18 (depends on 16) The golf club head of claim 16, wherein, the grooves located between the central region and the body sole portion have a greater depth than the grooves located between the central region and the body top rail portion. ### Claim 19 (depends on 16) The golf club head of claim 16, wherein the grooves located between the central region and the body top rail portion have a greater depth than the grooves located between the central region and the body sole portion. ### Claim 20 (depends on 16) The golf club head of claim 16, wherein the club face is detachably attached to the body portion. ### Claim 21 (depends on 16) The golf club head of claim 16, wherein a portion of the club face including the center groove portion of the plurality of grooves is visually distinguishable from the rest of the club face to an individual viewing the club face. ### Claim 22 (depends on 16) The golf club head of claim 16, wherein a portion of the club face including the center groove portion of the plurality of grooves visually resembles a circle, an oval, a square, a diamond or a polygon to an individual viewing the club face.