Rotational molding system

Abstract

The rotational molding system comprising an internal air cooling system disposed on the mold and configured for one or more of selectively controlling air flow into or out of a cavity of the mold for actively cooling an interior surface of a part, pressurizing the cavity of the mold, allowing pressure equalization, or venting of off-gases. A first thermocouple and a second thermocouple disposed within the cavity to measure a temperature at the exterior surface of a part and the mold cavity. A control system in electronic communication with both said first thermocouple and said second thermocouple, may selectively operate the internal air cooling system to maintain the temperature of the cavity and the part's outside surface substantially the same. The mold and/or the oven containing the mold may be disposed for rotation about a first axis and a second axis during the rotational molding process.

Dependencies are inferred from the claim text.