Anti-frost system for a windshield of a motor vehicle
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorsTakeshi Tachimori, Hirohisa Takada
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Abstract
A system for preventing frost from accumulating on a window of a motor vehicle has a heating element provided on the window, a temperature switch, which is closed when the temperature of window is lower than 0.degree. C., and a humidity switch, which is closed when the humidity of air outside of the window becomes slightly lower than 100% relative humidity. When both the switches are closed, an electric circuit is closed to connect a battery with the heating element, thereby preventing the formation of frost on the window.
Claims3
A system for preventing frost from accumulating on a window of a motor vehicle comprising;
- a heating element provided on the window;
- a manual switch;
- a temperature switch closing when the temperature of the window is lower than 0.degree. C.;
- a humidity switch closing when the humidity of air outside of the window becomes slightly lower than 100% relative humidity;
- and
- an electric circuit connecting the heating element, manual switch, temperature switch and humidity switch to a battery in series.
Dependencies are inferred from the claim text.