An in-floor receptacle or electrical conduit box with a compartment divider removably attached to a gang-plate divider, a gang-plate divider removably attached to a gang-unit holder, at least one gang-unit holder removably attached to the inside of the box, and at least one knockout located on each side...http://www.google.de/patents/US7989710?utm_source=gb-gplus-sharePatent US7989710 - Covered in-floor receptacle box
