Flush floor box
View Patent ↗The present disclosure relates to a flush floor box that can be constructed at a lower cost and is easier to install than previously utilized flush floor boxes. The flush floor box includes a base and/or a leveling ring with integral features. The integral features help to reduce the cost of producing the flush floor box. The leveling ring can include ears/tabs for use in electrically grounding a top shield of a flat floor power cable.
1. A flush floor box comprising:
a base rectangular housing including integral corner tabs in each corner of the base;
leveling screws threaded into the integral corner tabs;
a rectangular leveling ring including leveling screw access openings and at least two integral ears that project inwardly from a main body of the rectangular leveling ring, the at least two integral ears are configured to connect to a top shield of a floor cable for electrically connecting the top shield of the floor cable to the rectangular leveling ring,
wherein the leveling ring rests on the leveling screws and the leveling screw access openings are configured to provide access through the rectangular leveling ring to tops of the leveling screws, and
wherein the leveling screws are configured to raise or lower the rectangular leveling ring relative to the base while the rectangular leveling ring rests on the leveling screws;
first fasteners that secure the rectangular leveling ring to the base; and
a rectangular cover that mounts over the rectangular leveling ring and forms a top side of the flush floor box.
2. The flush floor box of claim 1 , wherein the rectangular leveling ring is electrically connected to the base for grounding purposes, and wherein at least one of the integral corner tabs includes a discrete grounding location for electrically connecting the base to a ground fault current path.
3. The flush floor box of claim 2 , further comprising at least one transition block attached to the base, wherein the at least one transition block is configured to connect to wires contained in the floor cable.
4. The flush floor box of claim 3 , wherein an intermediate wire extends from the discrete grounding location to a connector of the at least one transition block that is electrically connected to a ground wire in the floor cable.
5. The flush floor box of claim 3 , further comprising at least one outlet anchored to the rectangular cover and electrically connected to the floor cable via the at least one transition block.
6. The flush floor box of claim 1 , wherein at least one first gasket is located between the rectangular leveling ring and the base and at least one second gasket is located between the rectangular leveling ring and the rectangular cover.
7. The flush floor box of claim 1 , wherein the at least two integral ears are angled downwardly and are configured to fasten the top shield electrically and physically to the rectangular leveling ring via a fastening mechanism selected from a group of consisting of screws and bonding clips.
8. The flush floor box of claim 2 , wherein the first fasteners electrically connect the rectangular leveling ring to the base for grounding purposes, and wherein the base includes primary leveling screws and primary leveling tabs for providing primary leveling of the flush floor box.
9. A flush floor box comprising:
a base including a plurality of inner tabs;
leveling screws threaded through the inner tabs;
a leveling ring that seats on the leveling screws, the leveling ring including at least two ears, the at least two ears being configured to attach to a top shield of a floor cable for electrically connecting the top shield of the floor cable to the leveling ring for grounding purposes; and
a top cover that mounts over the leveling ring and the base and that forms a top side of the flush floor box.
10. The flush floor box of claim 9 , wherein the plurality of inner tabs are integral with the base, wherein the inner tabs are positioned adjacent corners of the base, and wherein at least one of the inner tabs includes a discrete grounding location for electrically connecting the base to a ground fault current path.
11. The flush floor box of claim 9 , wherein the at least two ears are integral with the leveling ring.
12. The flush floor box of claim 9 , further comprising at least one transition block attached to the base, wherein the at least one transition block connects to wires contained in the floor cable.
13. The flush floor box of claim 12 , wherein an intermediate wire electrically connects a ground wire in the floor cable to a discrete grounding location via the at least one transition block.
14. The flush floor box of claim 12 , further comprising at least one power outlet secured to the top cover and configured to electrically connect to the floor cable via the at least one transition block.
15. The flush floor box of claim 12 , wherein the base includes a knockout portion.
16. The flush floor box of claim 9 , further comprising at least 8 fasteners for securing the leveling ring to the base.
17. The flush floor box of claim 9 , further comprising at least one first gasket located between the leveling ring and the base and at least one second gasket located between the leveling ring and the top cover.
18. The flush floor box of claim 9 , wherein the top shield is electrically and physically connected to the at least two ears via a fastening mechanism selected from a group consisting of screws and bonding clips.
19. The flush floor box of claim 9 , wherein the top cover includes at least one outlet port and at least one outlet cover.
20. The flush floor box of claim 9 , wherein the base includes at least one flange integral with the base, wherein the at least one flange defines first openings for receiving first fasteners for securing the leveling ring to the base and second openings for receiving second fasteners for securing the top cover to the base.