The present invention relates to an inflight headset for civil aircraft and in particular to one comprising a pair of main body portions each having an adjusting rod, a pair of covers each connected to one of said main body portions, a headband having a collar at each end, the collar being closely fitted...http://www.google.com/patents/US4472607?utm_source=gb-gplus-sharePatent US4472607 - Inflight headset for civil aircraft
