IP Library Granted Patent US 7,632,195
Granted Patent B2
US 7,632,195 · App. 11/203,148 · Granted Dec 15, 2009

Golf club head with low density crown

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Quick Facts
Patent No.
US 7,632,195
App. No.
11/203,148
Granted
Dec 15, 2009
Kind
B2
Abstract

A golf club head and a method for forming a golf club head are disclosed. The golf club head may include a low density portion and a high density portion. The high density portion includes at least a sole, a face, and at least one support member. The support member is operatively connected to the face and the sole, and maintains the structural integrity of the golf club head. The low density portion comprises the crown and the skirt of the club head. When the low density portion is attached to the at least one support member, a golf club head may be formed. In this manner, the center of gravity of the club head may be lowered and moved away from the face of the club.

Claims (37)

1. A golf club head, comprising:

a first portion including a sole, a face, and an elongate support member extending from an upper portion of the face to a rear portion of the sole; and

a second portion including a crown and a skirt coupled to the sole, the face, and the support member, the second portion formed of a low density material;

wherein:

the low density material is formed of one or more of magnesium, thermal plastic, and a composite material;

between about 50% and about 90% of the crown and the skirt are formed of the low density material;

wherein the support member includes one or more recesses that correspond to one or more protrusions formed in the second portion.

2. The golf club according to claim 1 , wherein the support member corresponds to the outer perimeter of the crown and the skirt of the golf club head.

3. The golf club according to claim 1 , wherein the second portion comprises two or more pieces.

4. The golf club according to claim 1 , wherein the ratio of a density of the first portion to a density of the second portion is about 3:1 or greater.

5. The golf club according to claim 1 , wherein the second portion comprises less than about 5% of the total weight of the golf club head.

6. The golf club head of claim 1 , wherein the support members comprise about 10% or less of the crown and the skirt.

7. The golf club head of claim 1 , wherein the support members comprise about 5% or less of the crown and the skirt.

8. The golf club head of claim 1 , wherein the support members comprise about 2% or less of the crown and the skirt.

9. The golf club of claim 1 , wherein the support member originates at about a center portion of the upper portion of the face and terminates at about a center portion of the rear portion of the sole.

10. The golf club of claim 1 , wherein the support member originates between a center point of the upper portion of the face and a toe area of the upper portion of the face, and the support member terminates at about the center of the rear portion of the sole.

11. The golf club of claim 1 , wherein the support member originates between a center point of the upper portion of the face and a heel area of the upper portion of the face, and the support member terminates at about the center of the rear portion of the sole.

12. The golf club head of claim 1 , wherein the support member forms a portion of an outer surface of the club head.

13. A golf club head, comprising:

a first portion including a sole, a face, and a support member extending from an upper portion of the face to a rear portion of the sole; and

a second portion including a crown and a skirt coupled to the sole, the face, and the support member, the second portion formed of a low density material;

wherein:

the low density material is formed of one or more of magnesium, thermal plastic, and a composite material;

between about 50% and about 90% of the crown and the skirt are formed of the low density material; and

the support member originates at about a center portion of the upper portion of the face and terminates at about a center portion of the rear portion of the sole.

14. The golf club head of claim 13 , wherein the support member forms a portion of an outer surface of the club head.

15. The golf club head of claim 13 , wherein the support member comprises about 2% or less of the crown and the skirt.

16. A golf club head, comprising:

a first portion including a sole, a face, and a first support member extending from an upper portion of the face to a rear portion of the sole; and

a second portion including a crown and a skirt coupled to the sole, the face, and the first support member, the second portion formed of a low density material;

wherein:

the low density material is formed of one or more of magnesium, thermal plastic, and a composite material;

between about 50% and about 90% of the crown and the skirt are formed of the low density material; and

the first support member originates between a center point of the upper portion of the face and a toe area of the upper portion of the face, and the first support member terminates at about the center of the rear portion of the sole.

17. The golf club head of claim 16 , further comprising a second support member that originates between a center point of the upper portion of the face and a heel area of the upper portion of the face, and the second support member terminates at about the center of the rear portion of the sole.

18. The golf club head of claim 16 , wherein the first and second support members comprise about 5% or less of the crown and the skirt.

19. The golf club head of claim 16 , wherein the first and second support members form a portion of the outer surface of the club head.

Assignments (6)
SECURITY INTEREST Recorded Aug 3, 2022
From: ACUSHNET COMPANY
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 061099/0236 →
ASSIGNMENT OF SECURITY INTEREST IN PATENTS (ASSIGNS 039506-0030) Recorded Aug 3, 2022
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS RESIGNING ADMINISTRATIVE AGENT
To: JPMORGAN CHASE BANK, N.A., AS SUCCESSOR ADMINISTRATIVE AGENT
Reel/Frame 061521/0414 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (027331/0627) Recorded Sep 7, 2016
From: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
To: ACUSHNET COMPANY
Reel/Frame 039938/0857 →
SECURITY INTEREST Recorded Jul 28, 2016
From: ACUSHNET COMPANY
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 039506/0030 →
SECURITY AGREEMENT Recorded Dec 6, 2011
From: ACUSHNET COMPANY
To: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
Reel/Frame 027331/0627 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2005
From: JORGENSEN, DOUGLAS C.
To: ACUSHNET COMPANY
Reel/Frame 016898/0455 →