Patent ID: 7946091

Claim:
A post construction wall mounting box assembly ( 100 ) adapted to cooperatively engage an edge of a wall board, said assembly comprising: (a) an enclosure ( 200 ) further comprising (i) a first set of parallel and opposed sidewalls ( 210 ) having exterior wall flanges ( 214 ), (ii) a second set of parallel and opposed sidewalls ( 220 ) having alignment cutouts ( 225 ), and (iiii) a back wall; (b) a clenching bracket ( 300 ) further comprising (i) a first slideable sidewall portion ( 310 ) terminating in a first interior wall flange ( 314 ) adapted to engage a first of said alignment cutouts, (ii) a second slideable sidewall portion ( 320 ) terminating in a second interior wall flange ( 324 ) adapted to engage a second of said alignment cutouts, and (iii) a back wall portion ( 320 ) including a first threaded hole ( 331 ) and a second threaded hole ( 332 ); (c) first and second joining screws ( 431 , 432 ) adapted to engage said first and second threaded holes, respectfully; and (d) wherein said exterior wall flange and said interior wall flange are further adapted to cooperatively engage an edge of the wall board when said first and second joining screws are tightened.