Patent ID: 6034609
Filing Date: 2000-03-07
Classification: G09F

Abstract:
A motorless traffic-control sign for automatic display of an inherent primary stop message when external electrical power is absent and an inherent optional secondary message when said electrical power is present, comprising:(a) a protective enclosure at all times surrounding all working components of said sign and having at least one transparent facade,(b) a plurality of movably-mounted louver panels arranged in a louvered fashion and viewable through said facade,(c) an interconnecting linkage rod freely communicating with said panels so as to provide unison positioning of said panels,(d) a solenoid communicating with said linkage rod so as to orient said panels in two distinct positions according to the state of said solenoid,(e) inherent primary and secondary viewing surfaces bearing respective said messages and made selectively viewable through said facade according to the distinct positioning and travel of said panels, and(f) piping components, of the type used to mount related traffic-control fixtures, attached to said enclosure so as to enable mounting of said enclosure to an external traffic pole,whereby said sign, ideally suited to supplement and operationally cooperate with an external traffic signal, automatically displays and retracts said inherent primary and secondary messages solely according to the state of said solenoid connected to said electrical power.