Abstract: In combination with a highway tractor of the type having an operator's cab mounted on a frame, a vertical pivotal coupling means coupled to the frame behind the cab adapted to be coupled to a trailer, and an aerodynamic structure at the top of the cab which includes a plurality of LED bulbs and a heat generating element in the front of the aerodynamic structure. A front panel of glass or plastic material having information such as a logo containing letters and/or images located on its first surface, second surface or embedded surface covers the LED bulbs with a weatherproof seal. Light from the LED bulbs provides illumination for the information on the front panel to be viewed from the front of the highway tractor and heat from the heat generating element helps to keep the front panel having information such as a logo free of snow and/or ice.

Abstract: In combination with a highway tractor of the type having an operator's cab mounted on a frame, a vertical pivotal coupling means coupled to the frame behind the cab adapted to be coupled to a trailer, and an aerodynamic structure at the top of the cab which includes a plurality of LED bulbs and a heat generating element in the front of the aerodynamic structure. A front panel of glass or plastic material having information such as a logo containing letters and/or images located on its first surface, second surface or embedded surface covers the LED bulbs with a weatherproof seal. Light from the LED bulbs provides illumination for the information on the front panel to be viewed from the front of the highway tractor and heat from the heat generating element helps to keep the front panel having information such as a logo free of snow and/or ice.