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"Iron"-type golf club head

  • US 5,766,092 A
  • Filed: 04/12/1994
  • Issued: 06/16/1998
  • Est. Priority Date: 04/16/1993
  • Status: Expired due to Fees
First Claim
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1. An iron-type golf club head comprising a hollow metal body incorporating an internal cavity delimited by a plurality of walls, including an impact wall attached peripherally at all points to other walls, wherein said impact wall has an internal surface coated with a thin layer of a viscoelastic resin having damping properties, said resin layer only partially filling said internal cavity and having a specific gravity between 1 and 2, said layer being adapted for molding under low pressure or by gravity subsequent to formation of said golf club head using a reaction injection molding process (RIM).

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