An improved spade terminal having two receptacles for use on a printed circuit board, slidingly receives the prongs of spade connectors between flat surfaces. A pair of tabs forming the base of the terminal are inserted into and extend through a hole in a printed circuit board. Each of the tabs is provided...http://www.google.com/patents/US4260216?utm_source=gb-gplus-sharePatent US4260216 - Spade terminal
