US Patent 8370962 Rapid doffing vest

A rapid doffing and donning vest uses a clam shell design wherein the ends of the cummerbund are removably attachable to the rear panel. A blade on the cummerbund mates with a receiver on the rear panel and has a plunger hold the two together. The plunger is attached to a pull strap located on the front panel's shoulder strap via a cord. As the pull strap is pulled outwardly, the cord pulls the plunger away from the mated blade and receiver and allows the two to decouple detaching the cummerbund from the rear panel. Outward pulling on the pull strap also facilitates decoupling of the shoulder strap from the rear panel. When the vest is doffed, the front panel and cummerbund remain attached to each other and detached from the rear panel.