The predecessor to what is now the international fast food restaurant chain Burger King was founded on July 23, 1953, in Jacksonville, Florida, as Instant Burger King. Inspired by the McDonald brothers' original store location in San Bernardino, California, the founders and owners, Keith J. Cramer and his stepfather Matthew Burns, began searching for a concept. After purchasing the rights to two pieces of equipment called "Insta" machines, the two opened their first stores around a cooking device known as the Insta-Broiler. The Insta-Broiler oven proved so successful at cooking burgers, they required all of their franchises to carry the device. After the original company began to falter in 1959, it was purchased by its Miami, Florida, franchisees James McLamore and David R. Edgerton. The t