A box-like shaped structure to cover household electrical outlet receptacles has a base frame screwably attachable to the existing receptacle face plate for seating thereon and an open sided cover box which slips within the frame and is locked thereto with protruding tabs on the outside of said box cover,...http://www.google.fr/patents/US4603932?utm_source=gb-gplus-shareBrevet US4603932 - Electrical outlet cover
