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Electronic speedometer for snow skis

  • US 5,003,820 A
  • Filed: 05/24/1990
  • Issued: 04/02/1991
  • Est. Priority Date: 05/24/1990
  • Status: Expired due to Fees
First Claim
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1. A device for measuring speed between a vehicle adapted to be attached to a human foot or feet and the air through which said vehicle moves, said device comprising of:

  • (a) a thermistor maintained at a higher than ambient temperature and exposed to the airflow through which said vehicle moves;

    (b) a thermocouple exposed to said airflow through which said vehicle moves;

    (c) a base on which said thermistor and said thermocouple are mounted;

    (d) means on said base for supplying electrical current to said thermistor and said thermocouple;

    (e) means on said base for reading, combining and converting signals obtained from said thermistor and said thermocouple to a speed reading;

    (f) and means for displaying said speed reading digitally.

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