IP Library › Granted Patent US 8,439,770
Granted Patent B1
US 8,439,770 · App. 13/646,847 · Granted May 14, 2013

Iron-type golf club head with rear cavity with undercut

Inventor: Denver Holt (Carlsbad, CA)
Assignee: Callaway Golf Company
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Quick Facts
Patent No.
US 8,439,770
App. No.
13/646,847
Granted
May 14, 2013
Kind
B1
Abstract

An iron-type golf club head having a rear cavity with an undercut portion is disclosed herein. The undercut portion is present in less than 360 degrees of the rear cavity. Further, the undercut portion is preferably discontinuous. Further, the under portion preferably has sharp angles at segments of the rear cavity.

Claims (17)

1. An iron-type golf club head comprising:

a body comprising a front wall, a top portion, a sole portion, a heel portion, a toe portion and a rear surface, wherein the rear surface, the top portion, the sole portion, the heel portion and the toe portion define an external rear cavity with a non-continuous undercut portion, wherein a total perimeter of the rear cavity is segmented into six straight sections, wherein at least four sections of the six sections have an undercut portion.

2. The iron-type golf club head according to claim 1 wherein the body further comprises a sharp angle undercut portion.

3. The iron-type golf club head according to claim 1 wherein the body further comprises a non-curved undercut portion.

4. The iron-type golf club head according to claim 1 wherein the body is composed of stainless steel, titanium alloy, carpenter steel, or any combination thereof.

5. An iron-type golf club head comprising:

a body comprising a front wall, a top portion, a sole portion, a heel portion, a toe portion and a rear surface, wherein the rear surface, the top portion, the sole portion, the heel portion and the toe portion define an external rear cavity with a non-continuous undercut portion, wherein a total perimeter of the rear cavity is segmented into six straight sections, wherein at least five sections of the six sections have an undercut portion.

6. The iron-type golf club head according to claim 5 wherein the body is composed of stainless steel.

7. The iron-type golf club head according to claim 5 wherein the body further comprises a sharp angle undercut portion.

8. The iron-type golf club head according to claim 5 wherein the body further comprises a non-curved undercut portion.

9. The iron-type golf club head according to claim 5 wherein the body is composed of a titanium alloy.

10. An iron-type golf club head comprising:

a body comprising a front wall, a top portion, a sole portion, a heel portion, a toe portion and a rear surface, wherein the rear surface, the top portion, the sole portion, the heel portion and the toe portion define an external rear cavity with an undercut portion of 295 degrees, wherein a total perimeter of a rear cavity is 7.8 inches and an undercut portion is present along 5.8 inches of the total perimeter.

11. The iron-type golf club head according to claim 10 wherein the body is composed of stainless steel.

12. The iron-type golf club head according to claim 10 wherein the body further comprises a sharp angle undercut portion.

13. The iron-type golf club head according to claim 10 wherein the body further comprises a non-curved undercut portion.

14. The iron-type golf club head according to claim 10 wherein the body is composed of a titanium alloy.

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 Oct 8, 2012
From: HOLT, DENVER
To: CALLAWAY GOLF COMPANY
Reel/Frame 029089/0723 →
Continuity (2)
Continuation 12875294 · Sep 3, 2010
Provisional Application 61243852 · Sep 18, 2009