Cast weatherproof electrical outlet box with staked end plates for mounting electrical wiring devices

Claim 1

A WEATHERPROOF ELECTRICAL OUTLET BOX COMPRISING, IN COMBINATION, A CAST METALLIC BOX INCLUDING BASE, SIDE AND END WALLS DEFINING A CAVITY FOR RECEIPT OF AN ELECTRICAL WIRING DEVICE, A PLURALITY OF INTEGRAL RIBS EXTENDING UPWARDLY FROM THE BASE ALONG THE SIDE WALLS ADJACENT THE ENDS OF THE BOX, SAID RIBS TERMINATING AT POINTS SPACED FROM THE UPPER EDGES OF THE SIDE WALLS, A PAIR OF WIRING DEVICE MOUNTING PLATES, ONE EXTENDING ACROSS EACH END OF THE BOX, EACH SAID MOUNTING PLATE RESTING UPON CORRESPONDING RIBS, SAID MOUNTING PLATES HVAING BEVELLED EDGES AND BEING HELD IN PLACE AGAINST SAID RIBS BY MATERIAL DISPLACED INWARDLY FROM THE UPPER EDGE PORTIONS OF THE SIDE WALLS AND OVERLYING THE BEVELLED EDGES OF SAID MOUNTING PLATES, AND MEANS FOR HOLDING SAID MOUNTING PLATES AGAINST THE BOX END WALLS SAID HOLDING MEANS INCLUDING MATERIAL OF EACH OF SAID MOUNTING PLATES DISPLACED INTO CORRESPONDING CAVITIES IN EACH OF SAID SIDE WALLS.