Hollow golf club head

  • US 20030125127A1
  • Filed: 12/26/2002
  • Published: 07/03/2003
  • Est. Priority Date: 12/28/2001
  • Status: Active Grant
First Claim
Patent Images

1. A hollow golf club head having a head body formed from a metal, wherein a hole is formed in the vicinity of the middle of a crown portion in said head body, the hole is closed with a cover member made of a material different from said head body, and the ratio (ρ

  • m/ρ

    f) of the specific gravity ρ

    m of said head body and the specific gravity ρ

    f of said cover member is set equal or superior to 1.3.

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