IP Library Granted Patent US 8,821,313
Granted Patent B1
US 8,821,313 · App. 13/761,863 · Granted Sep 2, 2014

Iron-type golf club head

Inventors: Patrick Dawson (San Diego, CA); Sean Griffin (Carlsbad, CA); Brett Carter (Carlsbad, CA); Irina Ivanova (San Diego, CA)
Assignee: Callaway Golf Company
A63B53/0475A63B59/0092
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Quick Facts
Patent No.
US 8,821,313
App. No.
13/761,863
Granted
Sep 2, 2014
Kind
B1
Abstract

An iron-type golf club head comprising a high strength face plate with a face support is disclosed herein. In particular, the face plate is affixed to a perimeter region and to a face support that extends upwards from the sole proximate a front opening. The face plate preferably is welded to the perimeter region and brazed to the face support to optimize the sound and feel of the golf club head while preserving the strength of the face.

Claims (11)

1. An iron-type golf club head comprising:

a 1020 carbon steel body comprising a top portion, a sole portion, a heel portion, a toe portion, a front opening, and a rear cavity; and

a steel face plate,

wherein the sole portion comprises a raised portion comprising a flat front surface, a concave upper surface, and a recess disposed in the front surface,

wherein the raised portion extends upwards from the sole proximate the front opening,

wherein the face plate is welded to at least one of the top portion, sole portion, heel portion, and toe portion and closes the front opening,

wherein the face plate is brazed to the front surface of the raised portion,

wherein the iron-type golf club head has a major excited mode of interest of 5000-5600 Hz and 75-85 dB,

wherein the iron-type golf club head has an Izz of 2000-2500 g-cm 2 and an Iyy of 500-700 g-cm 2 , and

wherein the iron-type golf club head has a center of gravity with a depth of 0.140-0.180 inch and a height of 0.070-0.140 inch.

2. The iron-type golf club head of claim 1 , further comprising at least one tungsten weight insert.

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 Feb 7, 2013
From: DAWSON, PATRICK; GRIFFIN, SEAN; CARTER, BRETT; IVANOVA, IRINA
To: CALLAWAY GOLF COMPANY
Reel/Frame 029775/0315 →
Continuity (1)
Provisional Application 61701533 · Sep 14, 2012