Abstract: A gas dispensing system includes a frame configured to house multiple rows of gas cylinders, a common gas manifold fluidically coupled to a gas outlet for dispensing of gas from the gas cylinders, a gas manifold for each row of gas cylinders configured to be fluidically coupled to each cylinder in the row by a respective dispensing valve, a vent manifold for each row of gas cylinders, in which the vent manifold for a given row of gas cylinders is configured to be fluidically coupled to each cylinder in the row via a respective vent valve, in which each vent valve is configured to open when a temperature on the vent valve exceeds a threshold temperature, and a common vent manifold, in which each vent manifold is fluidically coupled to the common vent manifold.

Abstract: A method of retailing comprises the steps of: providing a retail store environment configured to simulate a maternity hospital with a simulated baby delivery area; providing an on site inventory of dolls resembling human babies available for sale; providing a retail store customer with an opportunity to select desired doll characteristics; and delivering to the customer, in the simulated baby delivery area, a doll having such desired doll characteristics.