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Computer golf club

  • US 4,940,236 A
  • Filed: 07/26/1985
  • Issued: 07/10/1990
  • Est. Priority Date: 07/26/1985
  • Status: Expired due to Fees
First Claim
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1. A golf club assembly with a self-contained ball distance computing and indicating device, comprising:

  • a head having a forward wall generally perpendicular to an estimated line of ball flight after impact by the club head, a shaft connected to the head, a molecularly polarized flexible plastic piezoelectric film connected to the front of the forward wall that is compressed upon impact of the ball with the head and provides a signal proportional to the compression, an impact plate on the film attached to the forward wall and positioned to transmit substantially all of the impact force of a ball impacting the plate to the film as only a Z direction force, circuit means for sensing said compression signal and deriving a signal proportional to ball velocity leaving the head after impact, said circuit means deriving from said ball velocity signal a signal proportional to ball travel, and indicating means driven by the ball travel signal for providing a visual indication of ball travel.

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