US 12,168,166 B2
Golf club heads with energy storage characteristics
Martin R. Jertson, Phoenix, AZ (US); Eric J. Morales, Laveen, AZ (US); Cory S. Bacon, Cave Creek, AZ (US); Calvin Wang, Chandler, AZ (US); Xiaojian Chen, Phoenix, AZ (US); and Ryan M. Stokke, Anthem, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed on Sep. 27, 2022, as Appl. No. 17/935,903.
Application 17/935,903 is a continuation of application No. 16/908,599, filed on Jun. 22, 2020, granted, now 11,452,920.
Application 16/908,599 is a continuation of application No. 14/920,480, filed on Oct. 22, 2015, granted, now 10,688,350, issued on Jun. 23, 2020.
Claims priority of provisional application 62/206,152, filed on Aug. 17, 2015.
Claims priority of provisional application 62/131,739, filed on Mar. 11, 2015.
Claims priority of provisional application 62/105,464, filed on Jan. 20, 2015.
Claims priority of provisional application 62/105,460, filed on Jan. 20, 2015.
Claims priority of provisional application 62/068,232, filed on Oct. 24, 2014.
Prior Publication US 2023/0014268 A1, Jan. 19, 2023
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/04 (2013.01) [A63B 53/0408 (2020.08)] 14 Claims
OG exemplary drawing
 
1. A golf club head comprising:
a body having an outer surface and an inner surface,
wherein the inner surface is not visible from an exterior of the golf head, the body comprising:
a strike face;
a sole;
a crown;
a skirt between the crown and the sole;
a heel;
a toe; and
a toe side transition region extending rearward from the strikeface to the skirt, the toe side transition region comprising:
a first tier directly abutting the strike face;
a first tier transition region directly abutting the first tier opposite the strike face;
a second tier directly abutting the first tier transition region rearward of the first tier;
a second tier transition region directly abutting the second tier opposite the first tier transition region; and
the inner surface extends across each of the first tier, the first tier transition region, and the second tier;
wherein;
the first tier comprises a first thickness that is substantially constant or decreases from the strikeface to the first tier transition region;
the second tier comprises a second thickness that is substantially constant or decreases from the first tier transition region to the second tier transition region, wherein the second thickness is smaller than the first thickness;
wherein;
each of the first thickness and second thickness is measured between the inner surface and outer surface of the body;
the outer surface is continuous across the transition region between the strikeface and the sole;
first and second tier lengths are measured in a direction from the strikeface towards a rear of the golf club head;
the inner surface of the first tier transition region comprises a first arcuate surface extending rearward from the first tier and a second arcuate surface extending forward from the second tier, the first arcuate surface being convex and the second arcuate surface being concave when viewed normal to the inner surface;
and the inner surface being continuous from the first tier to the second tier;
wherein;
the first arcuate surface comprises a first radius of curvature and the second arcuate surface comprises a second radius of curvature;
the first and the second radius of curvature of the first tier transition region are at least 2 times a difference between the first thickness and the second thickness of the first tier and the second tier, respectively.