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Golf club head with a high coefficient of restitution

  • US 6,595,057 B2
  • Filed: 04/10/2002
  • Issued: 07/22/2003
  • Est. Priority Date: 04/18/2000
  • Status: Expired due to Term
First Claim
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1. A method of determining the coefficient of restitution of a golf club face comprising the steps of:

  • imparting a first impact force to the club face;

    measuring a first primary resonant frequency of vibration for the club face; and

    determining the coefficient of restitution by correlating the first primary resonant frequency to the coefficient of restitution.

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