The feed connector (270) capable of interacting with a device for delivering active principles comprising a reservoir delimited by at least two lateral walls of substantially cylindrical shape and extending opposite one another, is characterized in that it includes means (202, 203, 204, 205) for dispensing...http://www.google.com/patents/US7771403?utm_source=gb-gplus-sharePatent US7771403 - Uniform feed connector for devices for the delivery of active principles