An injection molding apparatus includes a manifold having a manifold channel for receiving a melt stream of moldable material under pressure and delivering the melt stream to a nozzle channel of a nozzle. The manifold includes a manifold plug fit within a bore thereof and having a plug melt channel for...http://www.google.co.uk/patents/US7320590?utm_source=gb-gplus-sharePatent US7320590 - Manifold plug for an injection molding apparatus
