Golf club head formed of a head case and a ball-striking plate doubly fused with the head case

• US 6,350,209 B1
• Filed: 01/12/2000
• Issued: 02/26/2002
• Est. Priority Date: 01/12/2000
• Status: Expired due to Term

• Current Assignee: Archer C.C. Chen
• Original Assignee: Archer C.C. Chen
• Inventors: Chen, Archer C. C.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US09/481,415
• Time in Patent Office: 776 Days
• Field of Search: 473/324, 473/342, 473/345, 473/346, 473/349, 473/350, 473/348
• US Class Current: 473/342
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

A golf club head is formed of a head case, and a ball-striking plate which is fused in the head case by a hard soldered layer formed of a molten hard solder in the fusion surface of the ball-striking plate and the head case, and by an annular fusion portion of a molten welding material along the annular fusion line of the ball-striking plate and the head case.

Claims

1. A golf club head comprising:

a stainless steel head case having a recess;

a flat projection circumscribing the recess and projecting inward partially over the recess from a terminal edge of the head case;

a titanium or maraging steel ball-striking plate covering the recess and fixed to the flat projection by a silver base hard soldered layer formed between an inner surface of the ball-striking plate, the flat projection being parallel to the ball-striking plate and having an exposed edge abutting the terminal edge of the head case; and

an annular fusion portion of a molten metal formed along an annular joint between the exposed edge of the ball-striking plate and the terminal edge of the head case.

2. The golf club head as defined in claim 1, wherein said annular fusion portion is formed of a welding material.

3. The golf club head as defined in claim 1, wherein said annular fusion portion is formed by fusing the exposed edge of said ball-striking plate and the terminal edge of said head case together along the joint.