Golf club head with weighting member and method of manufacturing the same

• US 6,508,978 B1
• Filed: 05/31/2000
• Issued: 01/21/2003
• Est. Priority Date: 05/31/2000
• Status: Expired due to Term

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Deshmukh, Uday V.
• Primary Examiner(s): Jenkins, Daniel J.
• Application Number:
  US09/584,623
• Time in Patent Office: 965 Days
• Field of Search: 419/5, 419/38, 419/49, 419/47
• US Class Current: 419/5
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

The use of hot pressing for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component and a binding component. A preferred multiple component material includes tungsten and tin. The hot pressing process is performed in an open air environment at standard atmospheric conditions.

Claims

1. A method for manufacturing a golf club head having a weighting member, the method comprising:

providing a golf club head with a cavity;

introducing a multiple component material into the cavity on a body of the golf club head;

the multiple material component containing a high density component and a binding component, the high density component ranging from 5% to 95% of the volume of the weighting member and the binding component ranging from 4% to 50% of the volume of the weighting member;

pressing the multiple component material within the cavity at a pressure ranging from 20,000 psi to 100,000 psi; and

heating the multiple component material in an open air environment without a vacuum at one atmosphere of pressure for liquid phase sintering of at least one component of the multiple component material.

2. The method according to claim 1 wherein the at least one component is the binding component and it is heated to its melting point.

3. The method according to claim 2 wherein the multiple component material is heated to a temperature ranging from 300°

F. to 600°

F.

4. The method according to claim 1 wherein the weighting member has a theoretical density between 70% to 99%.

5. The method according to claim 1 wherein the golf club head is an iron, putter, driver or fairway wood.

6. The method according to claim 1 wherein the multiple component material consists of tungsten and tin, the tungsten is 80-90 volume percent of the weight member and the tin is 10-20 volume percent of the weight member.

7. A method for manufacturing a golf club head having a weighting member, the method comprising:

providing a golf club head with a cavity;

introducing a multiple component material into the cavity on a body of the golf club head;

the multiple component material comprised of tungsten and a binding component material;

mixing the multiple component material to disperse the binding component throughout the multiple component material;

pressing the multiple component material within the cavity;

heating the multiple component material in an inert environment for liquid phase sintering of at least the binding component of the multiple component material.