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Imminent icing condition enunciator

  • US 6,166,657 A
  • Filed: 07/06/1998
  • Issued: 12/26/2000
  • Est. Priority Date: 03/21/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus for controlling the dispensing of a traction substance onto a surface, comprising:

  • an infrared sensor for determining the temperature of a surface;

    a traction enhancing substance deployment system; and

    a controller in data communication with the infrared sensor and the traction enhancing substance deployment system, the controller determining in accordance with a signal from the infrared sensor whether icing conditions are likely and selectively controlling traction enhancing substance deployment system in accordance with the determination,wherein the infrared sensor includes an extraneous radiation shield in shielding arrangement with said infrared sensing means, said shield comprising a terraced structure projecting outwardly from said sensing means for reflecting extraneous infrared radiation outwardly away from said infrared sensing means.

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