A self-closing lid is provided for a cover for a wiring device box. The cover has openings to provide access to a receptacle within the box. Each lid is formed with laterally protruding collinear gudgeons which are received in shell-like bearing members molded onto the cover. The lid and cover are each...http://www.google.ca/patents/US4994631?utm_source=gb-gplus-sharePatent US4994631 - Self-closing lid for wiring device cover
