An inserter/ejector system for use in inserting a circuit board into a backplane in a chassis and for ejecting the circuit board from the backplane in the chassis. The inserter/ejector system may be used in conjunction with staggered height connector pins to permit the circuit board to be inserted into...http://www.google.es/patents/US5222897?utm_source=gb-gplus-sharePatente US5222897 - Circuit board inserter/ejector system
