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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
First Claim
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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.

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