Stabilized putter head

Abstract

A putter head is constructed with a lightweight front blade member and a heavier rear weighted member having discrete concentrations of mass at its heel, toe and rear central portions. The rear weighted member is somewhat arch-shaped so as to define a hollow cavity or chamber when coupled to the front blade member. The putter head is stabilized during putting by the mass concentrations and the hollow cavity produces a large sweet spot along the front blade member.

1 . A golf putter head, comprising: 
 a front blade member; and    a rear weighted member coupled to said front blade member and defining a hollow chamber between said front blade member and said rear weighted member.    
   
   
       2 . The putter head of  claim 1 , wherein said front blade member comprises a first material having a first specific gravity and said rear weighted member comprises a second material having a second specific gravity greater than said first specific gravity.  
   
   
       3 . The putter head of  claim 1 , wherein said rear weighted member is heavier than said front blade member.  
   
   
       4 . The putter head of  claim 1 , wherein said rear weighted member comprises a heel portion and a toe portion, and a first concentrated weighted mass provided on said heel portion and a second concentrated weighted mass provided on said toe portion.  
   
   
       5 . The putter head of  claim 4 , wherein said rear weighted member further comprises a central portion located between said heel and toe portions, and a third concentrated weighted mass provided on said central portion.  
   
   
       6 . The putter head of  claim 5 , wherein said central portion is spaced further rearwardly from said front blade portion than said heel and toe portions.  
   
   
       7 . A golf putter head, comprising: 
 a front blade member defining an open groove; and    a rear weighted member fixed within said open groove.    
   
   
       8 . The putter head of  claim 7 , wherein said front blade member comprises a front wall, a top wall extending rearwardly from said front wall, and a bottom wall extending rearwardly from said front wall.  
   
   
       9 . The putter head of  claim 7 , wherein said rear weighted member has a density greater than the density of the front blade member.  
   
   
       10 . The putter head of  claim 7 , wherein said front blade member and said rear weighted member define an internal chamber within said putter head.  
   
   
       11 . The putter head of  claim 10 , wherein said internal chamber extends longitudinally over at least 50% of said front blade member.  
   
   
       12 . The putter head of  claim 7 , wherein said front blade member comprises a bottom wall having a heel portion, a toe portion and a central portion, and wherein said heel portion tapers upwardly from said central portion and said toe portion tapers upwardly from said central portion.  
   
   
       13 . The putter head of  claim 7 , wherein said rear weighted member comprises a bottom wall having a central portion, a heel portion and a toe portion, and wherein said heel and toe portions each taper upwardly from said central portion.  
   
   
       14 . The putter head of  claim 7 , wherein said rear weighted member is formed as an arch.  
   
   
       15 . The putter head of  claim 14 , wherein said arch comprises a heel portion, a toe portion and a central portion joining the heel and toe portions, and wherein each of said heel, toe and central portions comprises a concentrated weighted mass.  
   
   
       16 . The putter head of  claim 7 , further comprising a sight provided on said front blade member, said sight having a width about equal to the diameter of a golf ball.  
   
   
       17 . A golf putter club, comprising: 
 a club shaft having a handle; and    a putter head coupled to the club shaft and comprising a lightweight front blade member and a rear weighted member coupled to said front blade member, said front blade member having a density less than the density of said rear weighted member.    
   
   
       18 . The club of  claim 17 , wherein said front blade member weighs less than said rear weighted member.  
   
   
       19 . The club of  claim 17 , wherein said front blade member and said rear weighted member define an internal chamber.  
   
   
       20 . The club of  claim 17 , wherein said front blade member comprises a front wall and a top wall and wherein said rear weighted member is disposed between said front wall and said top wall.