US 11,998,809 B2
Club heads with varying groove parameters and related methods
Martin Jertson, Phoenix, AZ (US); Ryan Stokke, Anthem, AZ (US); and Evan Greer, Phoenix, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Jan. 18, 2022, as Appl. No. 17/648,264.
Application 17/648,264 is a continuation of application No. 16/696,805, filed on Nov. 26, 2019, granted, now 11,224,784.
Application 16/696,805 is a continuation of application No. 15/803,530, filed on Nov. 3, 2017, abandoned.
Application 15/803,530 is a continuation of application No. 15/295,421, filed on Oct. 17, 2016, granted, now 9,855,472, issued on Jan. 2, 2018.
Application 15/295,421 is a continuation of application No. 14/833,497, filed on Aug. 24, 2015, granted, now 9,555,297, issued on Jan. 31, 2017.
Claims priority of provisional application 62/042,164, filed on Aug. 26, 2014.
Prior Publication US 2022/0134193 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01); A63B 53/00 (2015.01)
CPC A63B 53/04 (2013.01) [A63B 53/047 (2013.01); A63B 53/005 (2020.08); A63B 53/0408 (2020.08); A63B 53/0445 (2020.08)] 20 Claims
OG exemplary drawing
 
1. A set of golf club heads, the set comprising:
a first golf club head comprising:
a first club head body comprising a first club face portion; and
a second golf club head comprising:
a second club head body comprising a second club face portion;
wherein:
the first club face portion comprises a first club face surface and multiple first club grooves;
the first golf club head comprises a first club loft angle less than or equal to approximately 65 degrees;
each first club groove, respectively, of the multiple first club grooves comprises a first club groove base, a first club groove sidewall adjacent to the first club groove base, a first club groove edge point, a first club groove edge radius at the first club groove edge point, and a first club groove central axis approximately perpendicular to the first club groove base;
the first club groove base comprises a first groove base width;
the first club groove sidewall forms a first club groove sidewall angle;
wherein the first club face surface further comprises a first filleted transition such that the first groove sidewall interfaces with the first filleted transition at a first groove sidewall transition point and the first club face surface interfaces with the first filleted transition at a first face surface transition point such that the first groove edge point is located between the first groove sidewall transition point and the first face surface transition point;
the second club face portion comprises a second club face surface and multiple second club grooves;
the second golf club head comprises a second club loft angle less than the first loft angle;
each second club groove, respectively, of the multiple second club grooves comprises a second club groove base, a second club groove sidewall adjacent to the second club groove base, a second club groove edge point, a second club groove edge radius at the second club groove edge point, and a second club groove central axis approximately perpendicular to the second club groove base;
the second club groove base comprises a second groove base width;
the second club groove sidewall forms a second club groove sidewall angle;
wherein the second club face surface further comprises a second filleted transition such that the second groove sidewall interfaces with the second filleted transition at a second groove sidewall transition point and the second club face surface interfaces with the second filleted transition at a second face surface transition point such that the second groove edge point is located between the second groove sidewall transition point and the second face surface transition point;
the first club groove edge radius is less than the second club groove edge radius; and
at least one of:
the first club groove base width is less than the second club groove base width; or
the first club groove sidewall angle is greater than the second club groove sidewall angle.