US Patent 7789671 Electrical contact with overlapping structure

An electrical contact includes a first contact pin, a second contact pin and an elastic member surrounding the first contact pin and the second contact pin. Both of the first contact pin and the second contact pin include contacting portions. The first contact pin has a guiding portion including two lead-in arms and a stop portion between the two leading arms. The second contact has a main body and a protrusion on a top end of the main body. The leading arms define a guiding groove therebetween for the main body of the second contact pin moving up and down. The protrusion abuts against the stop portion of the first contact pin to prevent the second contact from sliding out of the guiding groove.