IP Library Granted Patent US 9,199,136
Granted Patent B2
US 9,199,136 · App. 14/221,130 · Granted Dec 1, 2015

Golf club shaft with high balance point and golf club including same

Inventors: Scott A. Rice (San Diego, CA); Donald S. Bone (Escondido, CA); Dustin A. Barksdale (San Marcos, CA)
Assignee: Acushnet Company
A63B53/00A63B53/0466A63B53/10A63B53/12A63B59/0074A63B53/145A63B59/0014A63B2053/0408A63B2053/0491
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Quick Facts
Patent No.
US 9,199,136
App. No.
14/221,130
Granted
Dec 1, 2015
Kind
B2
Abstract

A golf club shaft having a weight distribution such that the balance point percentage is less than or equal to 44.50%. The weight distribution of the shaft allows for an increase in length and/or club head weight of a golf club while having a reduced impact on the swing weight.

Claims (24)

1. A wood-type golf club, comprising:

a club head having a weight greater than 190.0 grams; and

a shaft comprising an elongate body extending between a tip end and a butt end, wherein the club head is coupled to the tip end of the shaft; and

a grip coupled to a butt end of the shaft,

wherein a center of gravity of the elongate body of the shaft is located a distance from the butt end that is less than or equal to 43.75% of the length of the elongate body, and wherein the elongate body has a butt frequency of 200-400 cycles per minute and a tip frequency of 400-1200 cycles per minute.

2. The golf club of claim 1 , wherein the club head has a weight greater than 194.0 grams.

3. The golf club of claim 1 , wherein the elongate body has a weight less than 90.0 grams.

4. The golf club of claim 1 , wherein the weight of the elongate body is 40.0-70.0 grams.

5. The golf club of claim 1 , wherein the outer diameter of the butt end is 0.550-0.900 inch.

6. The golf club of claim 5 , wherein the outer diameter of the tip end is 0.330-0.353 inch and the outer diameter of the butt end is 0.560-0.700 inch.

7. The golf club of claim 1 , wherein the elongate body has a mid frequency of 150-450 cycles per minute.

8. The golf club of claim 7 , wherein the elongate body has a butt frequency of 230-275 cycles per minute, a tip frequency of 550-1000 cycles per minute and a mid frequency of 250-375 cycles per minute.

9. The golf club of claim 1 , wherein the elongate body has a torque value of 1°-10°.

10. The golf club of claim 9 , wherein the elongate body has a torque value of 2°-9°.

11. A wood-type golf club, comprising:

a club head having a weight greater than 194.0 grams; and

a shaft comprising an elongate body extending between a tip end and a butt end, wherein the club head is coupled to the tip end of the shaft; and

a grip coupled to a butt end of the shaft,

wherein a center of gravity of the elongate body of the shaft is located a distance from the butt end that is less than or equal to 43.75% of the length of the elongate body, and wherein the elongate body has a butt frequency of 230-275 cycles per minute, a tip frequency of 550-1000 cycles per minute, and a torque value of 2°-9°.

12. The golf club of claim 11 , wherein the elongate body has a weight less than 90.0 grams.

13. The golf club of claim 11 , wherein the weight of the elongate body is 40.0-70.0 grams.

14. The golf club of claim 11 , wherein the outer diameter of the butt end is 0.550-0.900 inch.

15. The golf club of claim 14 , wherein the outer diameter of the tip end is 0.330-0.353 inch and the outer diameter of the butt end is 0.560-0.700 inch.

16. The golf club of claim 11 , wherein the elongate body has a mid frequency of 150-450 cycles per minute.

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 (033032/0293) Recorded Sep 7, 2016
From: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
To: ACUSHNET COMPANY
Reel/Frame 039939/0445 →
SECURITY INTEREST Recorded Jul 28, 2016
From: ACUSHNET COMPANY
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 039506/0030 →
SECURITY INTEREST Recorded May 27, 2014
From: ACUSHNET COMPANY
To: KOREA DEVELOPMENT BANK, NEW YORK BRANCH
Reel/Frame 033032/0293 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2014
From: RICE, SCOTT A.; BONE, DONALD S.; BARKSDALE, DUSTIN A.
To: ACUSHNET COMPANY
Reel/Frame 032490/0702 →
Continuity (4)
Continuation 13711060 · Dec 11, 2012
Continuation 13305057 · Nov 28, 2011
Division 12189825 · Aug 12, 2008
Related Publication 20140206470A1 · Jul 24, 2014