Abstract: A system for temperature-controlled transport of food on a vehicle includes food carts including an opening for ingress of air and an opening for egress of air and a refrigeration system including air ducts configured to convey pressurized air from the refrigeration unit to the food carts, including air outlets configured to interface with the food carts, air ducts configured to convey air from the food carts to the refrigeration unit, including air inlets configured to interface with the food carts, wherein the air outlets and air inlets include a spring-loaded valve configured for automatically opening when a food cart rests against the valve, and for automatically closing when said food cart no longer rests against the valve, one or more fans configured for circulating air within the air ducts, and, an ultraviolet (UV) light sterilization system located within the air ducts.

Abstract: A hinge assembly having a first hinge leaf pivotally connected to a second hinge leaf by first and second axially aligned pivotal connections, the first and second pivotal connections being axially spaced from one another, a first stop means located adjacent to the first pivotal connection and a second stop means located adjacent to the second pivotal connection, the first and second stop means being arranged to simultaneously limit pivotal displacement between the first and second hinge leafs at a fully open position.