US 11,701,559 B2
Golf club head with improved inertia performance
Thomas Orrin Bennett, Carlsbad, CA (US); Stephen S. Murphy, Carlsbad, CA (US); Peter L. Soracco, Carlsbad, CA (US); and Charles E. Golden, Encinitas, CA (US)
Assigned to Acushnet Company, Fairhaven, MA (US)
Filed by Acushnet Company, Fairhaven, MA (US)
Filed on Nov. 2, 2021, as Appl. No. 17/516,849.
Application 17/516,849 is a continuation of application No. 15/931,091, filed on May 13, 2020, granted, now 11,192,005.
Application 15/931,091 is a continuation in part of application No. 16/780,040, filed on Feb. 3, 2020, granted, now 11,213,730.
Application 16/780,040 is a continuation in part of application No. 16/539,622, filed on Aug. 13, 2019, granted, now 11,027,178, issued on Jun. 8, 2021.
Application 16/539,622 is a continuation in part of application No. 16/219,651, filed on Dec. 13, 2018, abandoned.
Prior Publication US 2022/0054905 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2015.01); A63B 53/06 (2015.01); A63B 53/08 (2015.01)
CPC A63B 53/08 (2013.01) [A63B 53/06 (2013.01); A63B 53/0437 (2020.08); A63B 53/0466 (2013.01); A63B 2053/0491 (2013.01); A63B 2209/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A golf club comprised of a golf club head, a shaft having a shaft axis coupled to the golf club head at a first end of the shaft and a grip coupled to the shaft at a second end of the shaft, wherein the golf club head comprises:
a frontal portion comprised of titanium comprising a striking face having a face center located at a forward portion of said golf club head, a crown return and a sole return;
a rear portion located aft of said striking face comprising a crown at an upper portion of said golf club head being coupled to the crown return and a sole portion on a bottom portion of said golf club head being coupled to the sole return;
an x-axis is defined as a horizontal axis tangent to said face center with a positive x direction towards a heel of said golf club head, a y-axis is a vertical axis orthogonal to said x-axis with a positive y direction towards said crown of said golf club head, and a z-axis being orthogonal to both said x-axis and said y-axis with a positive z direction extending forward,
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, said golf club head has a moment of inertia about said x-axis (MOI-X) passing through said CG and said golf club has a moment of inertia about the shaft axis (MOI-SA);
a first weighting member and a second weighting member, both being located near a central portion of said golf club head in a heel-to-toe orientation, substantially in line with a vertical plane containing the z-axis with said face center, the first weighting member located on the sole return and the second weighting member being located near a back edge of the golf club head;
wherein said first weighting member and said second weighting member each have a heavy side and a light side and are rotatable to move the CG along a direction parallel to the x-axis;
wherein said golf club head has a MOI-Y to MOI-Z ratio of greater than about 1.5; and
wherein said golf club head has a MOI-SA of less than 850 kg-mm2.