Abstract: A printing apparatus for 3D printing of feedstock. The printing apparatus comprises a hollow nozzle having an inlet and an outlet. The nozzle is mounted within a heating body that holds and heats the nozzle whereby the feedstock passing through the nozzle is heated prior to exiting the outlet. The nozzle can be mounted within the heating body such that an exterior surface of a portion of the nozzle locates outside of and extends away from the heating body to be exposed to ambient atmosphere. As a result, the temperature of the nozzle can vary across the nozzle.

Abstract: A legacy command is received from a legacy application, where the command is for accessing data. The legacy command is processed using an interface, where processing includes converting the legacy command into a collaboration environment command compatible with a collaboration environment server. Data is requested using the collaboration environment command. A collaboration environment result is received based on the collaboration environment command, where the collaboration environment result includes the requested data. The collaboration environment result is converted into a legacy result using the interface, where the legacy result includes the requested data. The legacy result is provided to the legacy application.

Abstract: A frozen aerated product in a container, the container having a wall delimiting a cavity and having an opening, the cavity containing a bag, the opening being closed by a valve having a product inlet and a product outlet, the bag containing the product inlet, the cavity containing a propellant, the frozen aerated product being contained within the bag and gastightly separated from the propellant by the bag, there being an annular hermetic seal between the bag and the wall; characterised in that the bag is resiliently inflatable and the frozen aerated product is under a gauge pressure of between 4 and 18 bar.

Abstract: A frozen aerated product in a container is provided. The product is under a pressure of between 4 and 18 barg, and the container is provided with a valve. The valve has a flow rate of above 6 g s?1, preferably between 10 and 30 g s?1. The flow rate of the valve being the mass flow rate at which the frozen aerated product, having a temperature of ?18° C., is discharged through the fully open valve to atmospheric pressure. Also provided are valves suitable for dispensing viscous products at high flow rate whilst retaining a low opening and actuation force.