Filed on 05 July 1955, by Jeremiah D. Kennelly of Oak Park, Ill, for the Mars Signal-Light Company, is for a three bulb rotating light. The bragging rights on this design is an easier design to swap out the bulbs without removing screws. It accomplished this with a spring clamp mechanism. It also was designed to allow more than two bulbs under an enclosed dome of the same size as other 2 bulb lights.