US 12,115,419 B2
Golf club head with improved inertia performance
Charles E. Golden, Encinitas, CA (US); Joey Ashcroft, Castle Rock, CO (US); Richard L. Cleghorn, Oceanside, CA (US); Gregory D. Johnson, Nashville, TN (US); Gentry Ferguson, San Marcos, CA (US); Peter L. Soracco, Carlsbad, CA (US); Noah de la Cruz, San Diego, CA (US); Hiroshi Kawaguchi, Aliso Viejo, CA (US); and Peter Larsen, San Marcos, CA (US)
Assigned to Acushnet Company, Fairhaven, MA (US)
Filed by Acushnet Company, Fairhaven, MA (US)
Filed on Apr. 1, 2022, as Appl. No. 17/711,859.
Application 17/711,859 is a continuation of application No. 16/912,276, filed on Jun. 25, 2020, granted, now 11,331,546.
Application 16/912,276 is a continuation in part of application No. 16/219,651, filed on Dec. 13, 2018, abandoned.
Prior Publication US 2022/0219053 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0466 (2013.01) [A63B 53/0408 (2020.08); A63B 53/0416 (2020.08); A63B 2053/0491 (2013.01)] 20 Claims
OG exemplary drawing
 
20. A golf club head comprising:
a frontal portion further comprising a striking face that helps define a face center, located at a forward portion of said golf club head, wherein said frontal portion comprises a first material having a first density;
a rear portion located aft of said striking face, wherein said rear portion comprises a second material have a second density,
wherein an x-axis is defined as a horizontal axis tangent to a geometric center of said striking face with a positive direction towards a heel of said golf club head, a y-axis is a vertical axis orthogonal to said x-axis with a positive direction towards a crown of said golf club head, and a z-axis being orthogonal to both said x-axis and said y-axis with a positive direction towards said frontal portion of said golf club head;
at least one first weighting member located substantially in line with a vertical plane extending through said face center and along the z-axis; and
a second weighting member located rearward of said first weighting member and substantially in line with said vertical plane extending through said face center and along the z-axis,
wherein said first weighting member and said second weighting member both comprise a third material having a third density,
wherein said third density is greater than said first density and said second density,
wherein said golf club head has a moment of inertia about said y-axis (MOI-Y) passing through a center of gravity (CG) of said golf club head, said golf club head has a moment of inertia about said z-axis (MOI-Z) passing through said CG, and said golf club head has a moment of inertia about said x-axis (MOI-X) passing through said CG,
wherein said golf club head has a MOI-Y measurement of greater than about 400 kg-mm2,
wherein said golf club head has a moment of inertia about a shaft axis (MOI-SA) measurement of less than about 850 kg-mm2,
wherein said golf club head has a MOI-Y to MOI-Z ratio of greater than about 1.50,
wherein said golf club head has an MOI-X to MOI-Z ratio of greater than about 1.10,
wherein said golf club head has a CG-B measurement of between about 32 mm and about 39 mm,
wherein said golf club head has a CG-C measurement of between about 10 mm and about 25 mm, and
wherein when said golf club has an MOI-Z measurement of less than 320 kg-mm2, said golf club has a ratio of CG-B/Head Width of greater than about 0.34.