High density outer layer of a golf club head

Abstract

Embodiments of a golf club head comprising a body having a body material density, a strike face having a strike face material density, and a coating comprising a coating material having a coating material density greater than the body material density or the strike face material density are described herein.

1 . A golf club head comprising:
 a body comprising a body material having a body material density, the body including:   a crown,   a sole opposite the crown,   a heel,   a toe opposite the heel, and   a back end;   a strike face made of a strike face material having a strike face material density;   an outer surface;   an inner surface; and   a coating comprising a coating material having a coating material density,
 wherein the coating material density is greater than the body material density or the strike face material density. 
   
     
     
         2 . The golf club head of  claim 1 , wherein the strike face material is the same as the body material, and the coating material is different than the strike face material and the body material. 
     
     
         3 . The golf club head of  claim 1 , wherein the strike face material is different than the body material, and the coating material is different than the strike face material or the body material. 
     
     
         4 . The golf club head of  claim 1 , wherein the coating is positioned on the outer surface of the club head on at least a portion of the crown, the sole, the heel, the toe, the strike face, the back end, or the hosel. 
     
     
         5 . The golf club head of  claim 1 , wherein the coating is positioned on the outer surface of the club head on at least one of the crown, the sole, the heel, the toe, the strike face, the back end, or the hosel. 
     
     
         6 . The golf club of  claim 1 , wherein the coating further comprises a surface area ranging from approximately 0-70 in 2 . 
     
     
         7 . The golf club of  claim 1 , wherein the coating further comprises a thickness ranging from approximately 0.00001-0.10 inches. 
     
     
         8 . The golf club of  claim 1 , wherein the weight of the coating ranges from approximately 1-15 grams. 
     
     
         9 . The golf club head of  claim 1 , wherein the coating comprises cobalt beryllium copper, pure palladium, tungsten carbide, tungsten rhenium, or pure tungsten. 
     
     
         10 . The golf club head of  claim 1 , wherein the at least one coating includes:
 a first coating made of a first coating material having a first coating material density; and   a second coating made of a second coating material having a second coating material density, wherein the second coating material density is different than the first coating material density.   
     
     
         11 . The golf club of  claim 10 , wherein the first coating further comprises a first surface area ranging from approximately 0-70 in 2 . 
     
     
         12 . The golf club of  claim 10 , wherein the second coating further comprises a second surface area ranging from approximately 0-70 in 2 . 
     
     
         13 . The golf club of  claim 10 , wherein the first coating further comprises a first thickness ranging from approximately 0.00001-0.10 inches. 
     
     
         14 . The golf club of  claim 10 , wherein the second coating further comprises a second thickness ranging from approximately 0.00001-0.10 inches. 
     
     
         15 . The golf club of  claim 10 , wherein the combined weight of the first coating and the second coating ranges from approximately 1-15 grams. 
     
     
         16 . The golf club head of  claim 10 , wherein the first coating is made of cobalt beryllium copper, pure palladium, tungsten carbide, tungsten rhenium, or pure tungsten. 
     
     
         17 . The golf club head of  claim 10 , wherein the second coating is made of cobalt beryllium copper, pure palladium, tungsten carbide, tungsten rhenium, or pure tungsten. 
     
     
         18 . A method of manufacturing a golf club head having a coating, the method including:
 providing a club head having a strike face and a body, the body having a crown, a sole opposite the crown, a heel, a toe opposite the heel, and a back end; and   applying the coating or plurality of coatings to at least a portion of the club head.   
     
     
         19 . A golf club head comprising
 a body comprising a body material having a body material density, the body including:   a crown,   a sole opposite the crown,   a heel,   a toe opposite the heel, and   a back end;   a strike face made of a strike face material having a strike face material density;   an outer surface;   an inner surface; and   a coating comprising a coating material having a coating material density, wherein the coating material density is greater than the body material density or the strike face material density, and   wherein the coating comprises a thickness ranging from 0.001 inches (25.4 μm) to 0.025 inches (635 μm) to provide 10 grams of discretionary weight to the club head.   
     
     
         20 . The golf club head of  claim 19 , wherein the coating includes:
 a first coating made of a first coating material having a first coating material density; and   a second coating made of a second coating material having a second coating material density, wherein the second coating material density is different than the first coating material density.