Patent ID: 7173221

Claim:
A heat alert safety device for warning individuals that a surface of an object is too hot or cold, comprising a light source that generates a light beam, a fiber optic cable formed of a plurality of optical fibers, said fiber optic cable receiving light from the light source and oriented so that the plurality of fibers are directly in a path of the light beam, said fiber optic cable transmitting the light beam through the plurality of fibers to a point outside the fiber optic cable, a predetermined warning symbol for excessive temperature visible only when illuminated to an observer who can also readily see the surface, said symbol communicating that the surface is temperature excessive, a controller controlling the light source so that whenever a specified surface temperature is reached, the warning symbol is illuminated and remains illuminated as long as said specified surface temperature is maintained, and a sensor connected to the controller for ascertaining a surface temperature and communicating the surface temperature to the controller wherein the light source is at least four inches from the surface.