Golf club head or other ball striking device having impact-influencing body features

1. A golf club head comprising:

a club head body member made of at least a first material comprising a heel, a toe, a portion of a crown, a sole, and a portion of a ball striking surface; and

a face member made of a plurality of materials comprising a portion of the ball striking surface and a portion of the crown,

wherein the plurality of materials of the face member comprises at least a second material and a third material,

wherein the third material is located entirely on the crown of the club head;

wherein the third material is entirely surrounded by the second material;

wherein the third material has a modulus of elasticity that is lower than the second material; and wherein the third material has a density that is higher than a density of both the first material and the second material.

2. The golf club head of claim 1 , wherein the third material is gum metal.

3. The golf club head of claim 1 , wherein the face member is made from at least a first member made of the second material comprising a portion of the ball striking surface and a portion of the crown and a second member made of the third material comprising a portion of the crown, wherein the second member has a length of at least 65 percent of a longest dimension of the crown portion of the face member in a heel-to-toe direction.

4. The golf club head of claim 3 , wherein a ratio of a center width of the second member measured in a front-to-back direction of the golf club head compared to a breadth dimension of the golf club head is between 1:8 and 1:26.

5. The golf club head of claim 1 , wherein the third material has a modulus of elasticity that is at least 10 percent lower than a modulus of elasticity of the first material.

6. A golf club head comprising:

a club head body made of a first material comprising a heel, a toe, a portion of a crown, a sole, and a portion of a ball striking surface extending from the heel and the toe; and

a face member made of a first member and a second member,

wherein the first member made of a second material comprises a portion of the ball striking surface and a portion of the crown adjacent to the ball striking surface and the second member made of a third material located entirely on the portion of the crown of the first member,

wherein the third material has a modulus of elasticity that is less than a modulus of elasticity of either of the first material or the second material, and wherein the third material has a density that is higher than a density of both the first material and the second material; and

wherein the second member is adjacent to the first member on at least four sides.

7. The golf club head of claim 6 , wherein the first material and the second material are the same material.

8. The golf club head of claim 6 , wherein the first material is a titanium alloy.

9. The golf club head of claim 6 , wherein the third material is gum metal.

10. The golf club head of claim 6 , wherein the second member has a length of at least 65 percent of a longest dimension of the crown portion of the face member in a heel-to-toe direction.

11. The golf club head of claim 6 , wherein a ratio of a size of the second member measured in a front-to-back direction of the golf club head compared to a breadth dimension of the golf club head is between 1:8 and 1:26.

12. The golf club head of claim 6 , wherein the second member has a thickness less than or equal to a thickness of the first member adjacent to it.

13. The golf club head of claim 6 , wherein the second member has a constant width.

14. The golf club head of claim 6 , wherein the second member has a forward most edge located between 2 mm and 25 mm from a face-crown intersection point measured in a Y-Axis direction.

15. A golf club head comprising:

a club head body comprising a plurality of materials where a toe, a heel, a sole, and a portion of a crown is made of a first material and a region comprising a portion of the crown made of a third material; and

a face member made of a second material comprising a ball striking surface,

wherein the third material has a modulus of elasticity that is less than a modulus of elasticity of either of the first material or the second material; and

wherein the third material is entirely surrounded by the first material, and wherein the third material has a density that is higher than a density of both the first material and the second material.

16. The golf club head of claim 15 , wherein the third material is gum metal.

17. The golf club head of claim 15 , wherein the region has a forward most edge located between 5 mm and 15 mm of a face-crown intersection point measured in a front to back direction.

18. A method of forming a golf club head, comprising:

forming a golf club head body of a first material comprising a heel, a toe, a sole, a portion of a crown, and a portion of a ball striking surface;

forming a face member comprising a portion of the ball striking surface and a portion of the crown from a second material;

forming a crown member comprising a third material entirely within the crown portion of the face member wherein the third material has a modulus of elasticity that is less than a modulus of elasticity of the second material, and wherein the third material has a density that is higher than a density of both the first material and the second material;

connecting the golf club head body, the face member, and the crown member using an integral joining technique.

19. The method of claim 18 , wherein the third material has a modulus of elasticity lower than a modulus of elasticity of the first material.

20. The method of claim 18 , wherein the first material is a titanium alloy.

21. The method of claim 18 , wherein the third material is a beta-titanium alloy.

22. The method of claim 18 , wherein the third material is gum metal.

23. The method of claim 18 , wherein the golf club head body and the face member are welded together.

24. The method of claim 18 , wherein the golf club head body and the face member are adhesively joined together.

25. A golf club head comprising:

a club head body member made of at least a first material comprising a heel, a toe, a portion of a crown, a sole; and

a face member made of at least a first member made of a second material comprising a portion of a ball striking surface and a portion of the crown and at least a second member made of a third material located entirely on the crown of the club head,

wherein the second member has a substantially constant width when measured in a Y-Axis direction and has a forward most edge located between 2 mm and 25 mm from a face-crown intersection point measured in the Y-Axis direction,

wherein the third material has a modulus of elasticity that is lower than a modulus of elasticity than the first material and the second material, and wherein the third material has a density that is higher than a density of both the first material and the second material; and

wherein the second member is entirely surrounded by the first member.