A fueling system for conducting a transaction with a prepaid remote communication unit. The system includes wireless communication electronics for communicating with a remote communication unit, a dispenser and customer interface for conducting a transaction and accepting payment, and a control system....http://www.google.fr/patents/US6073840?utm_source=gb-gplus-shareBrevet US6073840 - Fuel dispensing and retail system providing for transponder prepayment
Fuel dispensing and retail system providing for transponder prepayment