A controller is for a heating system of a paving screed including a screed plate. The heating system is connected with the screed and configured to transfer thermal energy to the screed plate and includes an actuator configured to adjust thermal energy output of the heating system. The controller includes...http://www.google.fr/patents/US6334735?utm_source=gb-gplus-shareBrevet US6334735 - Controller for a paving screed heating system