Golf club head with non-threaded internal cavity chamber

Abstract

A metal wood or utility type golf club head is disclosed in which the golf club head may have dynamic mass properties that are capable of being adjusted without utilizing a threaded mechanism. More specifically, the present invention discloses a golf club head that has an internal receptacle or cavity well that is strategically placed inside the metal wood or utility type golf club head to enable dynamic mass adjustments utilizing weight cards. Even more specifically, the weight cards may generally be flat and rectangular in shape to minimize weight at undesirable areas and may even contain a weighted portion having an increased density for further center of gravity adjustment.

1 . A golf club head comprising:
 a forward portion containing a striking surface, said striking surface further comprising a face center at a geometric center of said face, and said face center further defining a neutral axis perpendicular to said striking surface passing through said face center;   an aft portion connected to said forward portion;   a cavity well located within said aft portion of said golf club head; and   a weight card configured to be embedded within said cavity well without the need of a threaded attachment;   wherein said cavity well has a ratio of volume to surface area less than 0.5.   
     
     
         2 . The golf club head of  claim 1 , wherein said cavity well is substantially rectangular in shape. 
     
     
         3 . The golf club head of  claim 2 , wherein said weight card further comprising:
 a first portion having a first density and a first coefficient of friction; and   a second portion at least partially enclosed by said first portion having a second density and a second coefficient of friction;   wherein said first portion further comprises a plurality of locking tabs located around a perimeter of said first portion, and a plurality of docking slots at a terminal end of said first portion to connect to said cavity well.   
     
     
         4 . The golf club head of  claim 3 , wherein said second density is greater than said first density. 
     
     
         5 . The golf club head of  claim 4 , wherein said first coefficient of friction is greater than said second coefficient of friction. 
     
     
         6 . The golf club head of  claim 4 , wherein said cavity well further comprises:
 an internal wall profile having a third coefficient of friction; and   a plurality of docking rods protruding into said cavity well at a terminal end of said cavity well,   wherein said plurality of docking rods mate with said plurality of docking slots within said weight card to secure said weight card within said cavity well.   
     
     
         7 . The golf club head of  claim 6 , wherein said cavity well further comprises:
 a plurality of locking tab receptacles located around a perimeter of said cavity well,   wherein said plurality of locking tab receptacles engages said plurality of locking tabs on said weight card to further secure said weight card to said cavity well.   
     
     
         8 . The golf club head of  claim 6 , wherein said first coefficient of friction of said weight card interacts with said third coefficient of friction of said internal wall profile of said cavity well to retain said weight card. 
     
     
         9 . The golf club head of  claim 8 , wherein said cavity well is perpendicular to said neutral axis. 
     
     
         10 . The golf club head of  claim 8 , wherein said cavity well is parallel to said neutral axis. 
     
     
         11 . The golf club head of  claim 6 , wherein said weight card further comprises a magnetic material. 
     
     
         12 . A golf club head comprising:
 a forward portion containing a striking surface, said striking surface further comprising a face center at a geometric center of said face, and said face center further defining a neutral axis perpendicular to said striking surface passing through said face center;   an aft portion connected to said forward portion;   a cavity well located within said aft portion of said golf club head; and   a weight card configured to be embedded within said cavity well without the need of a threaded attachment,   wherein said cavity well is perpendicular to said neutral axis.   
     
     
         13 . The golf club head of  claim 12 , wherein said cavity well has a ratio of volume to surface area less than 0.5. 
     
     
         14 . The golf club head of  claim 13 , wherein said cavity well is substantially rectangular in shape. 
     
     
         15 . The golf club head of  claim 14 , wherein said weight card further comprises:
 a first portion having a first density; and   a second portion having a second density.   wherein said second portion is at least partially enclosed by said first portion, and   wherein said second density is higher than said first density.   
     
     
         16 . A golf club head comprising:
 a forward portion containing a striking surface, said striking surface further comprising a face center at a geometric center of said face, and said face center further defining a neutral axis perpendicular to said striking surface passing through said face center;   an aft portion connected to said forward portion;   a cavity well located within said aft portion of said golf club head; and   a weight card configured to be embedded within said cavity well without the need of a threaded attachment,   wherein said cavity well is parallel to said neutral axis.   
     
     
         17 . The golf club head of  claim 16 , wherein said cavity well has a ratio of volume to surface area less than 0.5. 
     
     
         18 . The golf club head of  claim 17 , wherein said cavity well is substantially rectangular in shape. 
     
     
         19 . The golf club head of  claim 18 , wherein said weight card further comprises:
 a first portion having a first density; and   a second portion having a second density,   wherein said second portion is at least partially enclosed by said first portion, and   wherein said second density is higher than said first density.