Patent ID: 11957964
Assignee: KARSTEN MANUFACTURING CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A  Y | IPC A

Claim 0:
1. A hollow body golf club head comprising:
a body having a front end, a back end opposite the front end, a crown, a sole
opposite the crown, a heel, a toe opposite the heel, a skirt adjoining the crown and the sole, and a hosel structure having a hosel axis extending centrally through a bore in the hosel structure;
a strikeface positioned at the front end and defining a geometric center, a loft
plane tangent to the geometric center, and a head depth plane extending through the geometric center from the heel to the toe, perpendicular to the loft plane;
wherein:
a loft angle of the club head is less than 16 degrees;
a front radius of curvature of the club head is between 0.18 and 0.4 inches;
a head center of gravity of the club head is located at a head CG depth
from the loft plane, measured in a direction perpendicular to the loft plane, and at a head CG height from a head depth plane, measured in a direction perpendicular to the head depth plane;
the head CG depth is greater than 1.4 inches; and
the club head experiences a drag force (FD) less than 1.4 lbf when subjected to an air speed of 102 mph in a direction perpendicular to a plane extending through the geometric center of the strikeface, parallel to the hosel axis, and positioned at an angle corresponding to the loft angle from the loft plane;
the club head has a crown-to-sole moment of inertia Ixx, a heel-to-toe
moment of inertia Iyy, and a combined moment of inertia measured as a sum of the crown-to-sole moment of inertia and the heel to toe moment of inertia Ixx+Iyy;
wherein the heel-to-toe moment of inertia Iyy is greater than 5000 g cm{circumflex over ( )}2;
wherein the club head further satisfies relation A:, F
        D
       
       +
       2.7
      
      
       0.0005
       
        (
        
         
          I
          xx
         
         +
         
          I
          yy
         
        
        )
       
      
     
     <
     1
    
   
   
    
     A
     .
    
   
  
 

the club head further comprising an embedded weight comprising a weight center positioned at one or more of the following locations:
(a) within 0.4 inch of a perimeter of the club head;
(b) greater than 2.3 inches from the head center of gravity; or
(c) greater than 4.1 inches from the geometric center of the strikeface.