Multiple service floor box

Claim 2

In a cellular steel-concrete floor-ceiling structure comprising a plurality of spaced-apart elongated cells substantially parallel to each other, each cell being formed of metal and having a substantially flat upper surface parallel to the floor surface of said structure, the improvement comprising: a multiple-service fitting physically attached to adjacent cells of said floor-ceiling structure over access openings in said upper surfaces of said adjacent cells; said service fitting comprising an integrally formed base member comprising two chambers, said chambers each comprising a flat floor means with an aperture therethrough corresponding to said access opening in said cells; and enclosing walls extending upwardly from said floor means of said chambers for completing the sides of said chambers; an integrally formed divider means extending upwardly from said floor means of said chambers to isolate said chambers from each other, said divider means comprising an elongated portion protruding above the upper surfaces of said walls and having means for receiving a service divider means; and a cap member comprising a substantially flat surface portion engaging said upper surfaces of said walls of said base member, an integrally formed annular member positioned in said flat surface portion so as to be approximately centered over said elongated portion of said divider means, said annular member extending upwardly from said substantially flat surface portion of said cap member to the plane of said floor surface of said structure; means electrically and physically connecting said cap member to said base member; and means in said annular means for securing a multiple-service outlet box thereto.

Claim 3

A cellular steel-concrete floor-ceiling structure in accordance with claim 1 wherein said base member further comprises an annular means downwardly depending from each of said floor means, said annular means having an outside diameter corresponding roughly to the diameter of said access openings, the length of said annular means being greater than the thickness of the flat upper surface of said cells so as to protrude inside said cells, and the walls of said annular means being proportioned such that said annular means admits of mechanical working thereof to provide a smooth rolled surface connection to said cell.

Claim 4

A cellular steel-concrete floor-ceiling structure in accordance with claim 1 wherein said cap member further comprises walls downwardly depending from said substantially flat surface portion, said walls being proportioned to cover a portion of the outside surfaces of said enclosing walls of said base so as to preclude the flow of concrete into said chambers while said floor is being cast.

Claim 5

A cellular steel-concrete floor-ceiling structure in accordance with claim 1 wherein the outside surface of said integrally formed divider means forms an inverted truncated V joining the outside surfaces of said floor means so as to facilitate the flow of concrete under said divider means of said base member.

Claim 6

A cellular steel-concrete floor-ceiling structure in accordance with claim 1 wherein said flat surface portion of said cap member is deformed upwardly over said apertures in said chambers, said deformation extending vertically so as to cut through portions of said annular member to facilitate access to said cells through said apertures in said floor means of said chambers.

Claim 7

In a cellular steel-concrete floor-ceiling structure comprising a plurality of spacEd-apart elongated cells substantially parallel to each other, each cell being formed of metal and having a substantially flat upper surface parallel to the floor surface of said structure, the improvement comprising: a multiple service fitting physically attached to adjacent cells of said floor-ceiling structure over access openings in said upper surfaces of said adjacent cells; said service fitting comprising an integrally formed base member comprising two chambers, said chambers each comprising a flat floor means with an aperture therethrough corresponding to said access opening in said cells; and enclosing walls extending upwardly from said floor means of said chambers for completing the sides of said chambers; an integrally formed divider means extending upwardly from said floor means of said chambers to isolate said chambers from each other, said divider means comprising an elongated portion protruding above the upper surfaces of said walls and having means for receiving a service divider means; and a cap member comprising a substantially flat surface portion engaging said upper surfaces of said walls of said base member, an integrally formed annular member positioned in said flat surface portion so as to be approximately centered over said elongated portion of said divider means, said annular member extending upwardly from said substantially flat surface portion of said cap member to the plane of said floor surface of said structure; means electrically and physically connecting said cap member to said base member; means in one of said chambers for receiving an electrical outlet within said one chamber such that said outlet is accessible through the opening in said annular member; covering means covering said opening to protect said electrical outlet and conductors which are to enter said chambers; and means in said cap member securing said covering means thereto.

Claim 8

In a cellular steel-concrete floor-ceiling structure comprising a plurality of spacEd-apart elongated cells substantially parallel to each other, each cell being formed of metal and having a substantially flat upper surface parallel to the floor surface of said structure, the improvement comprising: a multiple service fitting physically attached to adjacent cells of said floor-ceiling structure over access openings in said upper surfaces of said adjacent cells; said service fitting comprising an integrally formed base member comprising two chambers, said chambers each comprising a flat floor means with an aperture therethrough corresponding to said access opening in said cells; and enclosing walls extending upwardly from said floor means of said chambers for completing the sides of said chambers; an integrally formed divider means extending upwardly from said floor means of said chambers to isolate said chambers from each other, said divider means comprising an elongated portion protruding above the upper surfaces of said walls and having means for receiving a service divider means; and a cap member comprising a substantially flat surface portion engaging said upper surfaces of said walls of said base member, an integrally formed annular member positioned in said flat surface portion so as to be approximately centered over said elongated portion of said divider means, said annular member extending upwardly from said substantially flat surface portion of said cap member to the plane of said floor surface of said structure; means electrically and physically connecting said cap member to said base member; means in one of said chambers for receiving an electrical outlet within said one chamber such that said outlet is accessible through the opening in said annular member; covering means covering said opening to protect said electrical outlet and conductors which are to enter said chambers; and means in said cap member securing said covering means thereto.

Claim 9

A cellular steel-concrete floor-ceiling structure in accordance with claim 6 wherein said base member further comprises an annular means downwardly depending from each of said floor means, said annular means having an outside diameter corresponding roughly to the diameter of said access openings, the length of said annular means being greater than the thickness of the flat upper surface of said cells so as to protrude inside said cells, and the walls of said annular means being proportioned such that said annular means admits of mechanical working thereof to provide a smooth rolled surface connection to said cell.

Claim 10

A cellular steel-concrete floor-ceiling structure in accordance with claim 6 wherein said covering means comprises a pair of covers for protecting said conductors which are to enter said two chambers.