Patent ID: 11911670
Assignee: KARSTEN MANUFACTURING CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
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.