US 11,911,670 B2
Compact putter head
Anthony D. Serrano, Phoenix, AZ (US); Tony P. Finau, Lehi, UT (US); and John A. Solheim, Phoenix, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on May 11, 2023, as Appl. No. 18/315,842.
Claims priority of provisional application 63/406,657, filed on Sep. 14, 2022.
Claims priority of provisional application 63/366,131, filed on Jun. 9, 2022.
Claims priority of provisional application 63/364,709, filed on May 13, 2022.
Prior Publication US 2023/0364479 A1, Nov. 16, 2023
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0487 (2013.01) [A63B 53/0408 (2020.08); A63B 2053/0491 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A putter-type golf club head comprising:
a body comprising:
a strike face bounded by a strike face perimeter and comprising a geometric center, a loft plane, a strike face surface area ASF, and a leading edge;
a heel end, a toe end, a crown, a sole, and a rear end opposite the strike face, and a center of gravity;
an origin point located at a center of the leading edge;
wherein the strike face comprises a strike face width WSF less than 1.55 inches, the strike face width WSF measured across the strike face in a heel end-toe end direction;
wherein the strike face perimeter comprises a multi-sided shape having a high-heel corner, a low-heel corner, a high-toe corner, and a low-toe corner;
wherein the strike face further comprises a distance DSF measured diagonally from the low-heel corner of the strike face to the high-toe corner of the strike face, and wherein the distance DSF is less than 1.75 inches;
a first portion and a second portion, wherein the first portion comprises the strike face, and a transition region, and the second portion is positioned rearward from the first portion and comprises a remainder of the body;
wherein the transition region comprises a first transition wall and a second transition wall, and wherein the first and second transition walls extend from the strike face to connect the strike face to the second portion;
wherein the body defines a vertical midplane extending in the heel end-toe end direction and in a crown-sole direction and located halfway between the strike face and the rear end;
wherein the body further comprises a body width WB less than 2.30 inches, the body width WB measured between the heel end and the toe end in the heel end-toe end direction;
wherein the body further comprises a body depth DB less than 2.50 inches, the body depth DB measured between the strike face and the rear end in a strike face-rear end direction;
wherein a ratio WSF/WB of the strike face width WSF to the body width WB is less than 0.75;
a hosel attached to the body at a hosel connection point centered with respect to a hosel aperture defined in the body, the hosel aperture configured to receive the hosel, wherein the hosel comprises a hosel bore;
wherein the hosel connection point is located rearward of the vertical midplane;
wherein the putter-type golf club head further comprises a moment of inertia MOIyy between 1000 g·cm2 to 2000 g·cm2; and
wherein a ratio MOIyy/ASF of the moment of inertia MOIyy to the strike face surface area ASF is greater than 230 g.