Apparatus and method for powered thermal friction adjustment
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United States of America Patent
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Aug 15, 1995
Grant Date -
N/A
app pub date -
Jul 16, 1993
filing date -
Jul 16, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for adjusting the friction between a slide such as a ski and a responsive material such as snow by heating or cooling a portion of the material to change the material's coefficient of friction is disclosed. The apparatus includes a slide, a power source, and a thermal means which uses power from the power source to heat or cool the material the slide glides over. Electrical and chemical power sources are described. In one presently preferred embodiment, the slide is a ski, the power source includes electric batteries, and the thermal means includes heating elements embedded in the ski. The amount and location of heat produced may be controlled manually, remotely, or automatically. The batteries may be enclosed in the ski or attached to the skier's back. Other presently preferred embodiments include heated ice skate blades, snowmobile runners, and sled runners. Thermal means which heat the snow directly rather than heating the slide first are also disclosed.
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