US2013040757A1PendingUtilityA1

Golf club head with multi-material face formed using spray deposition method

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Individually held — no corporate assignee on recordPriority: Aug 10, 2011Filed: Aug 9, 2012Published: Feb 14, 2013
Est. expiryAug 10, 2031(~5 yrs left)· nominal 20-yr term from priority
Inventors:Uday V. DeshmukhCharles E. Golden
A63B 53/0466C23C 4/134A63B 53/0429A63B 53/0475A63B 53/0462A63B 53/0458A63B 53/0433A63B 53/0425A63B 53/0408C23C 4/08A63B 2053/0483
51
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Claims

Abstract

A metal wood golf club with a striking face portion made from more than one material is disclosed. More specifically, due to the unique construction of the striking face portion having multiple materials, the present invention utilizes bonding spray deposition process to achieve the desirable bond between the more than one materials used to form the striking face. The striking face portion is formed by creating a chip insert type material utilizing the spray deposition process that is made from a secondary material that is different from the remainder of the striking face portion substantially near a geometric center of the striking face portion; wherein the secondary material has a higher Young's modulus than the remainder of the striking face portion.

Claims

exact text as granted — not AI-modified
1 . A golf club head comprising:
 a striking face portion located at a frontal portion of said golf club head; and   a body portion attached to an aft portion of said striking face portion,   wherein said striking face portion further comprises multiple layers, wherein at least one of said multiple layer is formed via a spray deposition process, and wherein said at least said one of said multiple layer has a thickness of greater than about 1.0 mm.   
     
     
         2 . The golf club head of  claim 1 , wherein said thickness of said at least one of said multiple layer is greater than about 1.25 mm. 
     
     
         3 . The golf club head of  claim 1 , wherein said thickness of said at least one of said multiple layer is greater than about 1.50 mm. 
     
     
         4 . The golf club head of  claim 1 , wherein said spray deposition process is a cold spray process. 
     
     
         5 . The golf club head of  claim 1 , wherein said spray deposition process is a plasma spraying process. 
     
     
         6 . The golf club head of  claim 1 , wherein said spray deposition process is a flame spraying process. 
     
     
         7 . The golf club head of  claim 1 , wherein said spray deposition process is a wire arc spraying process. 
     
     
         8 . A golf club head comprising:
 a striking face portion located at a frontal portion of said golf club head;   a body portion attached to an aft portion of said striking face portion;   wherein said striking face portion further comprises;
 a first outer layer, made out of first material, forming an exterior surface of said striking face portion; 
 a second backing layer, made out of a similar material as said first outer layer, forming an interior surface of said striking face portion;
 wherein said first outer layer and said second backing layer combine to form a cavity substantially near a geometric center of said striking face portion; and 
 
 a chip insert, made out of second material, placed within said cavity; 
   wherein said chip insert is formed using a spray deposition process, and wherein said chip insert has a thickness of greater than about 1.0 mm.   
     
     
         9 . The golf club head of  claim 8 , wherein said thickness of said chip insert is greater than about 1.25 mm. 
     
     
         10 . The golf club head of  claim 8 , wherein said thickness of said chip insert is greater than about 1.50 mm. 
     
     
         11 . The golf club head of  claim 8 , wherein said striking face has a Face Thickness Ratio of less than about 0.875, said Face Thickness Ratio is defined as a thickness of said first outer layer at said geometric center divided by a thickness of said second backing layer at said geometric center. 
     
     
         12 . The golf club head of  claim 11 , wherein said striking face portion has a Face Thickness Ratio of less than about 0.66. 
     
     
         13 . The golf club head of  claim 12 , wherein said striking face portion has a Face Thickness Ratio of less than about 0.50. 
     
     
         14 . The golf club head of  claim 13 , wherein said first material is different from said second material. 
     
     
         15 . The golf club head of  claim 14 , wherein said second material has a Young's modulus that is greater than a Young's modulus of said first material. 
     
     
         16 . The golf club head of  claim 15 , wherein said second Young's modulus is greater than about 130 GPa. 
     
     
         17 . The golf club head of  claim 16 , wherein said second Young's modulus is greater than about 150 GPa. 
     
     
         18 . The golf club head of  claim 17 , wherein said second Young's modulus is greater than about 170 GPa. 
     
     
         19 . A golf club head comprising:
 a striking face portion located at a frontal portion of said golf club head; and   a body portion attached to an aft portion of said striking face portion;   wherein said striking face portion further comprises;
 a backing layer, made out of a first material, forming an interior surface of said striking face portion; 
 a frontal layer, made out of second material, is formed using a spray deposition process, and wherein said frontal layer has a thickness of greater than about 1.0 mm. 
   
     
     
         20 . The golf club head of  claim 20 , wherein said first material is different from said second material.

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