Abstract: An improved traffic signal directional indicator device comprises a housing which may be mounted onto a conventional traffic signal and be illuminated to provide indicia pertaining to a motorist's particular direction of travel, i.e. North, Northeast, South, etc. The improved traffic signal directional indicator device may be rapidly retrofitted onto existing traffic signals and function without adversely affecting the normal operation of the traffic signal.

Abstract: An improved apparatus and method of delivering conditioned air to rooms of a structure or dwelling through ceiling diffusers concealed by a valance and located adjacent the outside walls of the structure is disclosed. Air is delivered to the diffusers by conventional ducting located above the ceiling from a central forced air heating/cooling system and is directed into the room through adjustable apertures in the diffuser in a downwardly direction thereby forming a thermal barrier along the outside wall. Return air is collected at adjustable registers in the floor of the structure which communicate with a network of preformed channels under the flooring and delivered to the central heating or air conditioning system assisted by an auxiliary fan located in the channels.

Abstract: Substantially translucent lenses to be used in combination with standard traffic control signals. Information relating to the direction of vehicles are provided in such a manner on the lenses that motorists are constrained to view the information.