Putter head to graphite golf shaft adapter

Abstract

An adapter to connect a straight golf shaft with a golf club head includes: a first end that is cylindrical and that is configured to be joined with the golf club head; and a second end that is connected to the first end, that is cylindrical, and that is configured to be joined with a tip end of the straight golf shaft, where an angle between (a) a first plane through a first axis of the first end and (b) a second plane through a second axis of the second end is between 0.5 degrees and 45 degrees.

What is claimed is: 
     
         1 . An adapter to connect a straight golf shaft with a golf club head, the adapter comprising:
 a first end that is cylindrical and that is configured to be joined with the golf club head; and   a second end that is connected to the first end, that is cylindrical, and that is configured to be joined with a tip end of the straight golf shaft,   wherein an angle between (a) a first plane through a first axis of the first end and (b) a second plane through a second axis of the second end is between 0.5 degrees and 45 degrees.   
     
     
         2 . A golf club, comprising:
 the straight golf shaft;   the golf club head; and   the adapter of claim  1 ,   wherein the first end of the adapter is joined with the golf club head and the second end of the adapter is joined with the tip end of the straight golf shaft.   
     
     
         3 . The golf club of  claim 2  wherein the golf club head is a putter head. 
     
     
         4 . The golf club of  claim 2  wherein the straight golf shaft is a straight graphite golf shaft. 
     
     
         5 . The golf club of  claim 2  wherein the first end of the adapter is fixed to the golf club head via an adhesive. 
     
     
         6 . The golf club of  claim 2  wherein the second end of the adapter is fixed to the tip end of the straight golf shaft via an adhesive. 
     
     
         7 . The golf club of  claim 2  wherein the second end of the adapter is fixed to the tip end of the straight golf shaft via the adapter and the straight golf shaft having been co-bonded. 
     
     
         8 . The adapter of  claim 1  wherein the first end includes a cylindrical recessed portion configured to receive a cylindrical post on the golf club head. 
     
     
         9 . The adapter of  claim 8  wherein the first end includes one or more apertures that extend through the adapter to the cylindrical recessed portion. 
     
     
         10 . The adapter of  claim 8  wherein an outer diameter of the cylindrical recessed portion is between 0.3 inches to 0.4 inches. 
     
     
         11 . The adapter of  claim 1  wherein the second end includes a cylindrical recessed portion configured to receive an outer diameter of the straight golf shaft. 
     
     
         12 . The adapter of  claim 11  wherein the second end includes one or more apertures that extend through the adapter to the cylindrical recessed portion. 
     
     
         13 . The adapter of  claim 11  wherein an outer diameter of the cylindrical recessed portion is between 0.3 inches to 0.4 inches. 
     
     
         14 . The adapter of  claim 1  wherein:
 the first end includes a first cylindrical recessed portion configured to receive a cylindrical post on the golf club head; and 
 the second end includes a second cylindrical recessed portion configured to receive an outer diameter of the straight golf shaft. 
 
     
     
         15 . The adapter of  claim 1  wherein:
 the first end includes a cylindrical outer diameter configured to extend into a cylindrical recessed portion in the golf club head; and 
 the second end includes a cylindrical recessed portion configured to receive an outer diameter of the straight golf shaft. 
 
     
     
         16 . The adapter of  claim 1  wherein the first end includes a cylindrical outer diameter configured to extend into a cylindrical recessed portion in the golf club head. 
     
     
         17 . The adapter of  claim 1  wherein the adapter is made of one of steel, aluminum, a nickel alloy, a resin, graphite, a plastic, or a metal. 
     
     
         18 . The adapter of  claim 1  wherein an outer diameter of the first end is between 0.25 inches to 0.75 inches. 
     
     
         19 . The adapter of  claim 1  wherein an outer diameter of the second end is between 0.25 inches to 0.75 inches. 
     
     
         20 . The adapter of  claim 1  wherein the straight golf shaft is straight axially and does not include any bends along the axis of the straight golf shaft.