A contact has a spring section, and a pair of contact points. The spring section is formed as a single closed loop of material, prepared from Ni alloy. The loop may be subjected to elastic deformation through force. The pair of contact points formed in such way that the contact points project outwardly...http://www.google.de/patents/US7905730?utm_source=gb-gplus-sharePatent US7905730 - Interposer with a pair of contact points
