IP Library Granted Patent US 9,211,456
Granted Patent B2
US 9,211,456 · App. 14/214,025 · Granted Dec 15, 2015

Golf club with improved weight distribution

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Quick Facts
Patent No.
US 9,211,456
App. No.
14/214,025
Granted
Dec 15, 2015
Kind
B2
Abstract

Systems, devices, and methods relating to optimizing a weight distribution of a golf club for a golfer's swing, comprising monitoring one or more dynamic behavioral characteristics of said golfer's swing, and altering said weight distribution of said golf club to optimize said golfer's swing by evaluating said one or more dynamic behavioral characteristics of said golfer's swing, selecting a weight member from a set of interchangeable weight members, and installing said weight member into said golf club.

Claims (25)

1. A method of optimizing a weight distribution of a golf club for a golfer's swing, comprising:

monitoring one or more dynamic behavioral characteristics of said golfer's swing;

measuring a dispersion distance for at least one golf ball struck towards a target by said golfer using said golfer's swing;

wherein a target line comprises a line extending between said golf ball at address and said target;

wherein said dispersion distance is defined as a distance from said target line, measured perpendicularly from said target line to a point at which said golf ball comes to rest after being struck by said golfer using said golfer's swing; and

altering said weight distribution of said golf club to minimize said dispersion distance;

wherein monitoring one or more dynamic behavioral characteristics comprises monitoring a rotation angle of said golfer's swing through a measurement portion of said golfer's swing, wherein said target line is parallel to a ground plane, wherein a rotation reference plane is oriented parallel to said target line and perpendicular to said ground plane, and wherein said rotation angle is defined as the relative angle between a grip portion of a golf club being swung by said golfer and said rotation reference plane, said rotation angle measured about an axis perpendicular to said ground plane.

2. The method of claim 1 , wherein monitoring one or more dynamic behavioral characteristics comprises monitoring a grip-ball offset through a measurement portion of said golfer's swing, wherein said golf club being swung by said golfer comprises a club reference point, said club reference point defined as a point approximately 5.25 inches from a proximal end of said golf club along a centerline of said golf club, wherein said grip-ball offset is defined as a distance measured along an axis parallel to said target line from said club reference point to the center of said golf ball.

3. The method of claim 2 , further comprising calculating a rotation offset ratio of said golfer's swing, wherein said rotation offset ratio is defined as the slope of a straight line fit to a plot of rotation angle vs. grip-ball offset over said measurement portion of said golfer's swing.

4. The method of claim 3 , wherein said measurement portion of said golfer's swing begins at a downswing grip horizontal position and ends at an impact position, wherein said downswing grip horizontal position is defined as the instant during a downswing portion of said golfer's swing wherein said grip portion of said golf club is parallel to said ground plane, and wherein said impact position is defined as the instant during said golfer's swing wherein said golf club being swung by said golfer strikes said golf ball.

5. The method of claim 4 , wherein altering said weight distribution of said golf club comprises comparing said rotation offset ratio of said golfer's swing to said dispersion distance resulting from said golfer's swing striking said golf ball and installing a weight member into said golf club.

6. The method of claim 5 , wherein altering said weight distribution of said golf club further comprises selecting a weight member from a set of interchangeable weight members, said set of interchangeable weight members comprising a proximal weight member and a distal weight member, said proximal weight member distinct and separate from said distal weight member.

7. The method of claim 6 , wherein said proximal weight member comprises a heavy weighted portion, wherein said heavy weighted portion of said proximal weight member is located proximally from said club reference point when installed in said golf club, wherein said distal weight member comprises a heavy weighted portion, wherein said heavy weighted portion of said distal weight member is located distally from said club reference point when installed in said golf club.

8. A method of optimizing a weight distribution of a golf club for a golfer's swing, comprising:

monitoring one or more dynamic behavioral characteristics of said golfer's swing;

measuring a dispersion distance for at least one golf ball struck towards a target by said golfer using said golfer's swing;

wherein a target line comprises a line extending between said golf ball at address and said target;

wherein said dispersion distance is defined as a distance from said target line, measured perpendicularly from said target line to a point at which said golf ball comes to rest after being struck by said golfer using said golfer's swing; and

altering said weight distribution of said golf club to minimize said dispersion distance;

wherein said golf club comprises a weight receiving grip at a proximal end of a shaft, wherein altering said weight distribution of said golf club comprises expanding a proximal portion of said weight receiving grip with a grip expansion tool and installing a weight member in said weight receiving grip.

9. A method of optimizing a weight distribution of a golf club for a golfer's swing, comprising:

monitoring one or more dynamic behavioral characteristics of said golfer's swing;

altering said weight distribution of said golf club to optimize said golfer's swing;

wherein altering said weight distribution of said golf club comprises evaluating said one or more dynamic behavioral characteristics of said golfer's swing, selecting a weight member from a set of interchangeable weight members, and installing said weight member into said golf club;

wherein said club comprises a weight receiving grip at a proximal end of a shaft, wherein altering said weight distribution of said golf club comprises expanding a proximal portion of said weight receiving grip with a grip expansion tool and installing said weight member in said weight receiving grip.

Assignments (7)
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 →
SECURITY INTEREST Recorded Aug 3, 2022
From: ACUSHNET COMPANY
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 061099/0236 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2015
From: BONE, DONALD S.
To: ACUSHNET COMPANY
Reel/Frame 036698/0139 →
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 Apr 10, 2014
From: BARKSDALE, DUSTIN A.; KNUTSON, SCOTT A.; JOHNSON, GREGORY D.; MCCARTHY, ANDREW; MARGOLES, RYAN
To: ACUSHNET COMPANY
Reel/Frame 032642/0379 →