An obturating assembly includes a body having an aperture for passage to the pipe of a fuel supply spout of predetermined outer diameter and an obturator that is moveable with respect to the body. In accordance with the invention, the head further includes an access assembly having a shell through which...http://www.google.com/patents/US7708036?utm_source=gb-gplus-sharePatent US7708036 - Head for a fuel filler pipe of a vehicle
