 Complete the following phrase:  In April 1914, after his wifes near fatal static line jump, Smith worked to improve parachute design. A patent, assigned to the Floyd Smith Aerial Equipment Company of San Diego, California, was filed on July 27, 1918 and issued May 18, 1920 for Smiths parachute. In September 1918, General Billy Mitchell directed that a team evaluate available parachutes and identify the best chute. Mitchell picked Glenn Martin test pilot and former flying circus daredevil Floyd Smith. Smith added motor mechanic Guy Ball to his two-man team. After the 