An electrical control device having a joystick operator normally biased to a central position by resiliently biased rigid strips secured to a base plate. The joystick operator is pivoted in anyone of a plurality of directions through a 360.degree. arc. No more than two electrical switches or actuatable...http://www.google.co.uk/patents/US4181827?utm_source=gb-gplus-sharePatent US4181827 - Joy stick switch
