US2018133569A1PendingUtilityA1

Golf Putter Head for Ensuring Pure Roll

Individually held — no corporate assignee on recordPriority: May 16, 2015Filed: May 16, 2016Published: May 17, 2018
Est. expiryMay 16, 2035(~8.8 yrs left)· nominal 20-yr term from priority
Inventors:David Korn
A63B 2053/0433A63B 2053/0408A63B 53/007A63B 53/0487A63B 2209/08A63B 53/0408A63B 60/02A63B 2053/0491A63B 60/42A63B 53/0433A63B 53/065
18
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Claims

Abstract

A new golf putter head is disclosed, comprising an upper portion and a sole pillar, wherein the upper portion comprises a strike face and the bottom edge of the strike face is at a height within 0.375″ of the golf ball equator, and the sole pillar does not contact the ball at any point during the swing.

Claims

exact text as granted — not AI-modified
1 . A golf putter head, comprising:
 an upper portion, comprising a strike face, said strike face being configured to strike a golf ball, said strike face comprising a strike face edge located on the bottom of the strike face;   a sole pillar located below the upper portion, said sole pillar shaped in such a way as to not contact the golf ball while the strike face strikes the golf ball;   wherein the strike face edge is horizontal and located at a height ranging from 0.375″ less than a diameter of a golf ball to 0.375″ more than a diameter of a golf ball.   
     
     
         2 . The golf putter head of  claim 1 , wherein the sole pillar comprises a sole pillar face, wherein the both the strike face and the sole pillar face are approximately vertical, and wherein the sole pillar face is recessed with respect to the strike face. 
     
     
         3 . The golf putter head of  claim 1 , wherein the strike face is at an angle ranging between −30 and 30 degrees with respect to a vertical plane. 
     
     
         4 . The golf putter head of  claim 1 , wherein the strike face edge comprises one of the following: a bevel, a chamfer, a rounded edge, or a bull nose. 
     
     
         5 . The golf putter head of  claim 1 , wherein at least one of the strike face and the sole pillar is textured. 
     
     
         6 . The golf putter head of  claim 1 , wherein the sole pillar is removable. 
     
     
         7 . The golf putter head of  claim 6 , wherein the sole pillar comprises at least two pieces, wherein each of the at least two pieces may be attached independently to the upper portion. 
     
     
         8 . The golf putter head of  claim 6 , wherein the sole pillar's location with respect to the upper portion is adjustable. 
     
     
         9 . The golf putter head of  claim 1 , wherein the strike face edge is located at a height less than the diameter of the golf ball. 
     
     
         10 . The golf putter head of  claim 1 , wherein the strike face edge is located at a height substantially equal to the diameter of the golf ball. 
     
     
         11 . The golf putter head of  claim 1 , wherein:
 the distance between a heel and a toe of the upper portion is y 1 ;   the distance between a bottom and a top of the upper portion is z 1 ;   the distance between a face and a back of the upper portion is x 1 ;   the distance between a heel and a toe of the sole pillar is y 2 ;   the distance between a bottom and a top of the sole pillar is z 2 ;   the distance between a face and a back of the sole pillar is x 2 ;   the distance between a heel and a toe of the strike face is y 3 ;   the distance between a bottom and a top of the strike face is z 3 ;   the distance between the strike face and the face of the sole pillar is x 3 ;   the pitch of the sole pillar is θ 1 ;   the pitch of the strike face is θ 2 ;   the yaw of the sole pillar is ψ 1 ;   the yaw of the strike face is ψ 2 ;   the roll of the sole pillar is φ 1 ;   the roll of the strike face is φ 2 ; and wherein:
   y 1 ≤7″;
 
     z   1   =z   2   +z   3 ; 
   y 1 >x 1 ; 
     x   1   =x   2   +x   3 ; 
   y 2 <y 3 ; 
   z 2 <z 1 ; 
   x 2 <x 1 ; 
   y 3 ≥0.5y 1 ;
 
   y 3 ≥⅔x 1 ;
 
     z   3   =z   1   −z   2 ; 
   x 3 <x 1 ; 
   0≤θ 1 ≤180°;
 
   −30°≤θ 2 ≤30°;
 
   0≤ψ 1 ≤180°;
 
   0≤ψ 2 ≤180°;
 
   0≤φ 1 ≤180°;
 
   0≤φ 2 ≤180°.
 
   
     
     
         12 . The golf putter head of  claim 1 , further comprising:
 a set of guides on a bottom side of the sole pillar to reduce club drag.

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