US 12,109,460 B2
Laser contrasted golf club head and manufacturing process
Uday V. Deshmukh, Carlsbad, CA (US); Charles E. Golden, Encinitas, CA (US); Alan Hocknell, Carlsbad, CA (US); Taylor F. Linkenhelt, San Diego, CA (US); and Stephanie Luttrell, Carlsbad, CA (US)
Assigned to Acushnet Company, Fairhaven, MA (US)
Filed by Acushnet Company, Fairhaven, MA (US)
Filed on Dec. 14, 2023, as Appl. No. 18/540,738.
Application 18/540,738 is a continuation in part of application No. 18/055,204, filed on Nov. 14, 2022.
Application 18/055,204 is a continuation of application No. 17/678,779, filed on Feb. 23, 2022, granted, now 11,504,585, issued on Nov. 22, 2022.
Application 17/678,779 is a continuation of application No. 17/525,231, filed on Nov. 12, 2021, granted, now 11,779,816, issued on Oct. 10, 2023.
Application 17/525,231 is a continuation of application No. 16/901,876, filed on Jun. 15, 2020, granted, now 11,202,944, issued on Dec. 21, 2021.
Prior Publication US 2024/0115909 A1, Apr. 11, 2024
Int. Cl. A63B 53/04 (2015.01); C23C 14/02 (2006.01)
CPC A63B 53/04 (2013.01) [C23C 14/028 (2013.01); A63B 53/0441 (2020.08); A63B 2209/00 (2013.01)] 19 Claims
OG exemplary drawing
 
12. A golf club head comprising:
a club face located at a frontal portion of the golf club head, the club head further comprising;
an external surface, having an external surface roughness formed by a plurality of micro-grooves of substantially circular shape, and
wherein the external surface further comprises;
a central region occupying a central third of the club face, measured horizontally,
a toe region occupying a region toeward of the central region, and
a heel region occupying a region heelward of the central region
an internal surface, having an internal surface roughness, and
a body portion located rearward of the club face,
wherein when a plurality of imaginary vertical sampling lines are defined within an area measuring about 20 mm×20 mm located in the central region and centered with respect to a geometric center of the club face the central region of the external surface has a Central Region Average Vertical Surface Roughness Value of greater than about 100 μin, and
wherein the Central Region Average Vertical Surface Roughness Value is greater than a surface roughness value of the internal surface
wherein the plurality of micro-grooves has an average groove depth of between about 45 μm and about 60 μm.