IP Library Granted Patent US 12,350,561
Granted Patent B2
US 12,350,561 · App. 17/525,258 · Granted Jul 8, 2025

Golf club head utilizing internal adhesive and metal composite

Inventor: Tony Luna (Fairhaven, MA)
Assignee: Acushnet Company
A63B53/08A63B53/06B29C65/4815A63B53/0475A63B2209/08A63B2209/10B29C65/08
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Quick Facts
Patent No.
US 12,350,561
App. No.
17/525,258
Filed
Nov 12, 2021
Granted
Jul 8, 2025
Kind
B2
Art Unit
3784
USPC
473/320
Abstract

A golf club head is manufactured to form a cavity where the striking face of the golf club is secured to the sole and upper portion of the golf club head. A weighted composite is manipulated into a predetermined location within the cavity. The composite contains an adhesive which secures the composite within the cavity.

Claims (32)

1. A golf club head comprising:

a sole positioned on a bottom side of the golf club head;

a striking face positioned toward a front of the golf club head and attached to at least a portion of the sole;

an upper portion positioned on a top side of the golf club head such that a cavity is formed between the sole, the striking face, and

the upper portion;

a hosel;

a composite disposed in the cavity, wherein the composite comprises an adhesive constituent and a weight constituent, the weight constituent comprising at least a ball bearing; and

at least one introduction port, defined in at least one of the sole or the upper portion outside of the hosel, which is sized and configured to receive the composite after assembly of the upper portion, sole, and striking face;

a wherein, when the composite is in a flowable state, the weight constituent is configured to be moved by an external magnet, and the composite is configured to solidify after being moved by the external magnet.

2. The golf club head of claim 1 , wherein the adhesive constituent comprises a viscosity of about 4,125 cP (mPa.s) at 300° F., and a viscosity of about 2010 cP (MPa.s) at 350° F.

3. The golf club head of claim 1 , wherein the weight constituent further comprises at least one of a powder, a cube, or a flake.

4. The golf club head of claim 1 , wherein the weight constituent comprises at least one of a magnet and a metal.

5. The golf club head of claim 1 , wherein the composite comprises an adhesive constituent to weight constituent weight ratio of about 1:1.

6. The golf club head of claim 1 , wherein the weight constituent comprises a magnetic, ferrous metal.

7. The golf club head of claim 1 , wherein the composite is disposed proximate a rear portion of the sole.

8. The golf club head of claim 1 , wherein a diameter of the ball bearing is less than 0.125 inches and the weight constituent has a mass between 0.5 grams to 25 grams.

9. A golf club head comprising:

a sole positioned on a bottom side of the golf club head;

a striking face positioned toward a front of the golf club head and attached to at least a portion of the sole;

an upper portion positioned on a top side of the golf club head such that a cavity is formed between the sole, the striking face, and

the upper portion;

a hosel;

a composite disposed in the cavity, wherein the composite comprises an adhesive constituent and a weight constituent, wherein:

the adhesive constituent comprises a hot melt adhesive;

the weight constituent includes at least one ball bearing formed from a magnetic material;

the composite comprises an adhesive constituent to weight constituent weight ratio greater than 1:1 and less than 1.7; and

the weight constituent has a mass between 0.5 grams to 25 grams

at least one introduction port, defined in at least one of the sole or the upper portion outside of the hosel, which is sized and configured to receive the composite after assembly of the upper portion, sole, and striking face;

wherein the adhesive constituent and the weight constituent is introduced into the cavity in a substantially flowable state, wherein, when the composite is in a flowable state, the weight constituent is configured to be moved by an external magnet, and the composite is configured to solidify after being moved by the external magnet.

10. The golf club head of claim 9 , wherein the adhesive constituent comprises a viscosity of about 4,125 cP (mPa.s) at 300° F., and a viscosity of about 2010 cP (MPa.s) at 350° F.

11. The golf club head of claim 9 , wherein the ball bearing has a diameter of less than 0.125 inches.

12. The golf club head of claim 9 , wherein the composite is disposed proximate a rear portion of the sole.