Patent ID: 7476806

Claim:
An electrical box assembly comprising: an electrical outlet box having a rear wall perimetrically bounded by sidewalls extending therefrom, the electrical outlet box adapted to receive one electrical device or two electrical devices; a substantially flat adapter plate comprising a first pair of adapter plate screw apertures for securing one electrical device to the adapter plate, second and third pairs of adapter plate screw apertures for securing two electrical devices to the adapter plate and an electrical device aperture configured to accommodate either one electrical device or the two electrical devices; and an engaging mechanism comprising a fixed structure on the adapter plate which correspondingly interconnects with a fixed structure on the electrical box to removably couple the adapter plate to the electrical box, wherein said engaging mechanism comprises: a plurality of adapter plate mounting slots projecting inward from said sidewalls, and a plurality of adapter plate mounting extensions extending from said adapter plate and configured to engage said adapter plate mounting slots.