Air-vapor barrier box

Details Air-vapor barrier box Air-vapor barrier box

1987-03-30

1988-07-12

Grimley, A. T.

Electricity: conductors and insulators

Boxes and housings

With electrical device

220 33, H02G 308

Patent

active

047571586

ABSTRACT:
A five-sided air-vapor barrier box seals an electrical outlet box in a building wall. The barrier box has an open side, around which outwardly extend reinforced flanges perpendicular to the associated barrier box walls. The back surface of a flange is placed against the face of a wall stud, and a barrier box side wall is placed against the side of the stud. The electrical outlet box and barrier box are nailed together to the stud through the barrier box side wall. A thin sheet of moisture impervious material is placed over the wall studs and barrier box. An opening in the film is cut approximately coextensive with the barrier box open side. A bead of caulk is deposited on the flanges, and the film is pressed against the flanges, thereby creating an air and moisture seal. The barrier box and film are then covered with the finish wall covering. The barrier box walls are made of two thicknesses. The wall portions adjacent the flanges are of a relatively great thickness to provide rigidity to the barrier box. The wall portions adjacent the back wall are relatively thin for easy opening for inserting wires through the barrier box.

REFERENCES:
patent: 3684819 (1972-08-01), Wilson
patent: 3863037 (1975-01-01), Schindler et al.
patent: 4296870 (1981-10-01), Balkwill et al.
patent: 4345693 (1982-08-01), Balkwill et al.
patent: 4408695 (1983-10-01), Balkwill et al.
patent: 4626617 (1986-12-01), Rye
patent: 4673097 (1987-06-01), Schuldt
patent: 4685581 (1987-08-01), Kaneda et al.

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