IP Library Granted Patent US 8,911,304
Granted Patent B1
US 8,911,304 · App. 13/745,348 · Granted Dec 16, 2014

Weighted iron-type golf club head

Inventors: Patrick Dawson (San Diego, CA); Sean Griffin (Carlsbad, CA); Brett Carter (Carlsbad, CA)
Assignee: Callaway Golf Company
A63B53/0475
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Quick Facts
Patent No.
US 8,911,304
App. No.
13/745,348
Granted
Dec 16, 2014
Kind
B1
Abstract

The present invention discloses a forged iron-type golf club head having a cavity, tungsten weighting, and a back cap configured to simulate an undercut, conceal the weighting, and adjust the golf club head's overall weight and center of gravity location without interfering with or affecting the sole configuration. The golf club head of the present invention also includes a J-shaped face thickness pattern to further improve performance.

Claims (27)

1. An iron-type golf club head comprising: a body having a face and a cavity having a cavity area defined by a top portion, a sole portion, a heel portion, and a toe portion; a plurality of high density weights; a back cap; and a support beam extending from a rear surface of the face from the heel portion to the toe portion, wherein the support beam divides the cavity into an upper cavity and a lower cavity, wherein the upper cavity comprises approximately 75% of the cavity area, wherein the high density weights are disposed within the lower cavity on the sole portion, wherein the back cap is affixed to the sole portion, heel portion, and toe portion to conceal the weights, and wherein the golf club head comprises a J-shaped face thickness pattern; wherein the back cap is affixed to the support beam; wherein a lower surface of the back cap combines with the sole portion to form an overall sole surface of the golf club head, and wherein the lower surface of the back cap constitutes more than 0% and less than 25% of the overall sole surface; and wherein the back cap completely encloses the lower cavity and extends vertically above the support beam to partially enclose the upper cavity.

2. The iron-type golf club head of claim 1 wherein the body is composed of carbon steel.

3. The iron-type golf club head of claim 2 , wherein the body is forged.

4. The iron-type golf club head of claim 1 , wherein the back cap is composed of a metal material.

5. The iron-type golf club head of claim 4 , wherein the back cap is composed of stainless steel.

6. The iron-type golf club head of claim 1 , wherein the J-shaped face thickness pattern extends from the face to the sole portion.

7. The iron-type golf club head of claim 1 , wherein each of the plurality of high density weights is composed of a tungsten alloy.

8. The iron-type golf club head of claim 1 , wherein the plurality of high density weights comprises a first tungsten weight and a second tungsten weight, wherein the first tungsten weight is disposed proximate the heel portion, and wherein the second tungsten weight is disposed proximate the toe portion.

9. The iron-type golf club head of claim 1 , wherein the J-shaped face thickness pattern extends from the face to the support beam.

10. The iron-type golf club head of claim 1 , wherein the lower surface of the back cap constitutes less than 15% of the overall sole surface.

11. An iron-type golf club head comprising:

a carbon steel body comprising a face, a perimeter weighting portion, and a cavity having a cavity area delineated by the face and the perimeter weighting portion;

first and second weights composed of a tungsten alloy;

a stainless steel back cap; and

a support beam extending from a rear surface of the face from the heel portion to the toe portion,

wherein the support beam divides the cavity into an upper cavity and a lower cavity,

wherein the upper cavity comprises approximately 75% of the cavity area,

wherein the perimeter weighting portion comprises a sole portion, a heel portion, and a toe portion,

wherein the first and second weights are tack welded to an upper surface of the sole portion,

wherein the first weight is disposed proximate the heel portion and the second weight is disposed proximate the toe portion,

wherein the back cap is welded to the sole portion,

wherein the back cap completely encloses the lower cavity and extends vertically above the support beam to partially enclose the upper cavity, and

wherein a lower surface of the back cap composes less than 25% of an overall sole surface area.

12. The iron-type golf club head of claim 11 , wherein the body is forged.

13. The iron-type golf club head of claim 11 , further comprising a medallion disposed within the cavity.

14. The iron-type golf club head of claim 11 , further comprising a J-shaped face thickness pattern extending from the face to the support beam.

15. The iron-type golf club head of claim 11 , wherein the back cap is welded to the support beam.

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 Jan 18, 2013
From: DAWSON, PATRICK; GRIFFIN, SEAN; CARTER, BRETT
To: CALLAWAY GOLF COMPANY
Reel/Frame 029658/0547 →
Continuity (1)
Provisional Application 61701097 · Sep 14, 2012