An electrical plug having a housing which surrounds a plug-in area, in which the plug may be connected with the plug receptacle, and a cable area, in which the cable may be connected to the plug, an insulator sleeve which surrounds a channel extending from the plug-in area to the cable area, into which...http://www.google.fr/patents/US7540775?utm_source=gb-gplus-shareBrevet US7540775 - Electrical plug and method of fitting the plug
