IP Library Granted Patent US 7,892,102
Granted Patent B1
US 7,892,102 · App. 12/790,372 · Granted Feb 22, 2011

Device to measure the motion of a golf club

Assignee: Callaway Golf Company
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Quick Facts
Patent No.
US 7,892,102
App. No.
12/790,372
Granted
Feb 22, 2011
Kind
B1
Abstract

A club shaft that can be installed in a club head permanently or can be installed in clubs with interchangeable shaft features is disclosed herein. The invention is a measurement system that enables the capturing of the speed and motion of the golfer's swing. The invention uses magnetic material positioned on a face of a golf club head and an array of magnetic sensors.

Claims (15)

1. A system for measuring the motion of a golf club swung by a golfer, the system comprising:

a golf club comprising a shaft and a golf club head, the golf club head having a plurality of strips of a magnetic material thereon, a first strip of the plurality of strips of the magnetic material positioned on a heel-side of a face of the golf club head and a second strip of the plurality of strips of the magnetic material positioned on a toe-side of the face of the golf club head;

a golf ball positioned on a tee extending upward from a mat; and

a plurality of magnetic sensors positioned to create a swing field for reception of a magnetic field from the plurality of strips as the golf club is swung through the swing field towards the golf ball, the plurality of magnetic sensors positioned in a coherent pattern in two rows in front of the golf ball, with each row parallel to the other row;

wherein the plurality of magnetic sensors is able to capture the speed and motion of the golf club as the golf club is swung through the swing field by a golfer.

2. A system for measuring the motion of a golf club swung by a golfer, the system comprising:

a golf club comprising a shaft and a golf club head, the golf club head having a plurality of dots of a magnetic material thereon, a first dot of the plurality of dots of the magnetic material positioned on a heel-side of a face of the golf club head and a second strip of the plurality of dots of the magnetic material positioned on a toe-side of the face of the golf club head;

a golf ball positioned on a tee extending upward from a mat; and

a plurality of magnetic sensors positioned to create a swing field for reception of a magnetic field from the plurality of strips as the golf club is swung through the swing field towards the golf ball, the plurality of magnetic sensors positioned in a coherent pattern in two rows in front of the golf ball, with each row parallel to the other row;

wherein the plurality of magnetic sensors is able to capture the speed and motion of the golf club as the golf club is swung through the swing field by a golfer.

3. A system for measuring the motion of a golf club swung by a golfer, the system comprising:

a golf club comprising a shaft and a golf club head, the golf club head having a plurality of strips of a ferro-magnetic material thereon, a first strip of the plurality of strips of the ferro-magnetic material positioned on a heel-side of a face of the golf club head and a second strip of the plurality of strips of the ferro-magnetic material positioned on a toe-side of the face of the golf club head;

a golf ball positioned on a tee extending upward from a mat; and

a plurality of magnetic sensors positioned to create a swing field for reception of a magnetic field from the plurality of strips as the golf club is swung through the swing field towards the golf ball, the plurality of magnetic sensors positioned in a coherent pattern in two rows in front of the golf ball, with each row parallel to the other row;

wherein the plurality of magnetic sensors is able to capture the speed and motion of the golf club as the golf club is swung through the swing field by a golfer.

Assignments (8)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 063665/0176 Recorded Jun 1, 2026
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: CALLAWAY GOLF COMPANY (F/K/A TOPGOLF CALLAWAY BRANDS CORP.); TRAVISMATHEW, LLC; OGIO INTERNATIONAL, INC.; WORLD GOLF TOUR, LLC
Reel/Frame 075834/0150 →
SECURITY INTEREST Recorded May 17, 2023
From: TOPGOLF CALLAWAY BRANDS CORP.; OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 063692/0009 →
SECURITY AGREEMENT Recorded May 16, 2023
From: TOPGOLF CALLAWAY BRANDS CORP. (FORMERLY CALLAWAY GOLF COMPANY); OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A, AS COLLATERAL AGENT
Reel/Frame 063665/0176 →
RELEASE (REEL 048172 / FRAME 0001) Recorded Mar 17, 2023
From: BANK OF AMERICA, N.A.
To: TOPGOLF CALLAWAY BRANDS CORP. (F/K/A CALLAWAY GOLF COMPANY); OGIO INTERNATIONAL, INC.
Reel/Frame 063622/0187 →
SECURITY INTEREST Recorded Jan 23, 2019
From: CALLAWAY GOLF COMPANY; CALLAWAY GOLF SALES COMPANY; CALLAWAY GOLF BALL OPERATIONS, INC.; OGIO INTERNATIONAL, INC.; CALLAWAY GOLF INTERACTIVE, INC.; CALLAWAY GOLF INTERNATIONAL SALES COMPANY; TRAVISMATHEW, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 048110/0352 →
SECURITY AGREEMENT Recorded Jan 4, 2019
From: CALLAWAY GOLF COMPANY; OGIO INTERNATIONAL, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 048172/0001 →
SECURITY INTEREST Recorded Feb 16, 2018
From: CALLAWAY GOLF COMPANY; CALLAWAY GOLF SALES COMPANY; CALLAWAY GOLF BALL OPERATIONS, INC.; OGIO INTERNATIONAL, INC.; CALLAWAY GOLF INTERACTIVE, INC.; CALLAWAY GOLF INTERNATIONAL SALES COMPANY
To: BANK OF AMERICA, N.A.
Reel/Frame 045350/0741 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2010
From: GALLOWAY, J. ANDREW
To: CALLAWAY GOLF COMPANY
Reel/Frame 024458/0617 →
Continuity (1)
Provisional Application 61184199 · Jun 4, 2009