Electric outlet box mounting

Claim 1

An electric outlet box for mounting in a wall opening including first mounting elements adapted to abut against a front face of a support wall through an opening of which the box extends, second mounting elements adjustably anchored to the exterior of the box, said second mounting elements including abutment portions normally disposed externally of the box and substantially parallel to said first mounting elements and adapted to engage the rear face of the wall for securing the box in the opening thereof and resilient portions disposed externally of the box and carrying said abutment portions, said resilient portions being inclined away from the box from said anchoring means for yieldably retaining the abutment portions externally of the box and in wall engaging positions, said resilient portions being displaceable inwardly toward the box for disengaging the abutment portions from the wall and for positioning said abutment portions for passage through the wall opening, said box being substantially closed except for the openings through which the abutment portions extend, and closure and stop elements carried by the abutment portions for limiting outward movement of the abutment portions by engagement with the interior of the box and for closing said box openings when the abutment portions are in wall engaging positions.