Sectional Electrical Boxes

• US 20100025064A1
• Filed: 08/04/2008
• Published: 02/04/2010
• Est. Priority Date: 08/04/2008
• Status: Active Grant

• Current Assignee: James M. Nelson III
• Original Assignee: James M. Nelson III
• Inventors: Nelson, James M.
• Granted Patent: US 8,088,998 B2
• Time in Patent Office: Days
• US Class Current: 174/50
• CPC Class Codes: H05K 5/0013 assembled by resilient members
• CPC Class Codes: Y10S 248/906 Electrical outlet box support

Abstract

Flush mount and surface mount sectional electrical box assemblies is provided. In the flush mount electrical box, the front section has a clamping member (24) with a clamping arm (21) and a clamping tongue (22). A yoke boss (20), a mounting bracket guide (50), a snap recess (40) and a perimeter male interlock (26) is also on the front section of the flush mount box. The rear section of the flush mount box includes, a perimeter female interlock (28), a yoke post (30), a clamp guide (32), a mounting bracket (48), a snap tab (42), a cable grip ramp (36), a cable retaining wall (38), an anchor flange (34), and a cable hanger (78). When the front section of the flush mount box engages the rear section, the cable clamps (24) press the wiring against the cable grip ramp (36). The snap tab (42) and snap recess (40) hold the sections together. A fastener through the yoke boss (20) and into the yoke post (30, 110) holds the sections together. The yoke post (110) is used when the front section is extended in depth. The mounting bracket (48), screw head cavity (55), the anchor flanges (34, 43, 44, 88, 108), spring-loaded flags (120), and a stud clamp (130) attach the flush mount box sections to a support structure. A ceiling fan rear section has a cavity (86) to receive a support structure. In the gangable flush mount box, the sections have a gang channel (94) and a gang boss (92) with a gang snap (96), a gang recess (98) and a sway clip (114) holding the sections together. The ganged low voltage section has open cable ports (90, 102), short yoke boss (97), and a wire harness (100). When the front section of the flush mount box fits inside the rear section, the yoke boss (20) can be outside the front section and the yoke post (30) parallel with the rear section. In surface mount sectional electrical box assembly, a side wall cable clamp (66) with a snap tab cut-out (74) can be added. When the cable clamp (24) aligns with the yoke post (30), an elongated yoke post cut-out (64) in the clamp arm (21) is necessary. Wire molding joining the surface mount box with a molding tab (68) inserting in molding base (75), a molding cover (76), a wire hanger insert (70), and an assortment of molding connectors. A molding base (75) having an integrally molded combination raceway (67). A conduit fitting (142) engages a cable port (62) or an elongated rectangular conduit knock-out (59). A further embodiment provided is complete electrical box assemblies with the clamp grip ramp (36) in front of the clamp member (24).

Claims

1. An electrical box comprising a yoke boss and a yoke post mechanically fastened, connect the electrical box sections;

further comprising a front section integral clamp arm with clamping member and said yoke boss, whereas a rear section having said yoke post, a cable port, a cable retaining wall, a clamp guide, and an inverted L cable hanger;

said clamping members having said clamping arm and a clamping arm tongue sliding into said clamping guide;

said clamp arm an elongated notch when aligning with said yoke post;

said sections having perimeter male and perimeter female interlocking box structure members;

further including snap tabs, gang snaps, and sway clips allowing disassembly of said sections.

2. An electrical box according to claim 1, wherein a clamp member bias toward an enclosure wall clamp ramp securing the conductor;

further comprising said clamp member and a cable retaining wall form a closure of a cable port;

said port perpendicular to said ramp;

further including said retaining wall integrally connected to said yoke post;

said retaining wall slotted to accommodate a conduit fitting elongated port locking plate to engage in said port.

3. An electrical box according to a claim 1, wherein yoke boss and yoke post inside an assembly;

said yoke boss and said yoke post outside an assembly;

said yoke post parallel with an enclosure wall;

further including a yoke post raceway integrally connected to a front section reinforces an engaging yoke post.

4. An electrical box according to claim 1, wherein a cover plate anchor bore is integrally connected to a yoke boss.

5. An electrical box according to claim 1, wherein a flush mount box comprising a rear section structural support mounting bracket and a front section mounting bracket guide;

further comprising a rear section without said mounting bracket and a front section without said bracket guide.

6. An electrical box according to claim 1, wherein sections mount side by side with a gang channel receiving a gang boss;

said sections high voltage cable ports;

said sections low voltage cable ports;

further including a front section integrally connected with a low voltage section.

7. An electrical box according to claim 1, wherein snap tabs, gang snaps, and sway clips connect the electrical box sections;

said sections integrally connected structural support mounting brackets and anchor flanges;

a structural support clamp connected to said mounting bracket;

further including said sections integrally connected rotating resiliently urged flags engaging a structural support.

8. An electrical box according to claim 1, wherein an electrical box front section and a rear section fabricated then fused together.

9. An electrical box comprising flush and surface mount sections assemblies circular, square, and rectangular in configurations;

said sections front section fitting inside a rear section;

said sections front section fitting outside a rear section;

said sections with various depth capacity;

said sections capable of receiving a plurality of electrical devices;

said sections a voltage partition;

further including said flush mount rear section a cavity receiving a structural support.

10. An electrical box according to claim 9, wherein flush mount box configurations with a structural support mounting bracket, an enclosed mounting bracket guide cavity;

further including said mounting bracket receives a box depth adjustment flag.

11. An electrical box according to claim 9, wherein front section clamping members positioned on a side enclosure wall aligning with a rear section cable port, cable grip ramp, cable retaining wall, and clamp guides.

12. An electrical box according to claim 9, wherein a front electrical box portion without clamping members requiring cable port knock-outs on the rear portion;

further including said knock-outs round in configuration.

13. An electrical box according to claim 9, wherein a front section perimeter curved male interlock, and a rear section perimeter curved female interlock configuration;

further including a front section perimeter male flange interlock, and a rear section perimeter female flange interlock configuration.

14. An electrical box according to claim 9, wherein surface mount box configurations abuts encapsulating molding;

said molding a base with a female interlock, said molding a cover with spread side walls having male interlock legs manually squeezed into said female interlock on said molding base engages said cover;

said base receives a molding tab and a wire hanger insert;

further comprising said wire hanger insert continuous along said base to form a combination raceway.

15. An electrical box according to claim 9, wherein a conduit fitting engages a elongated cable port when a elongated rectangular port locking plate rotates in said cable port and contacts the interior wall with a port locking tab on a elongated rectangular port cover plate positions said conduit fitting in said cable port;

further including said conduit fitting engages an enclosure wall elongated rectangular knock-out;

said conduit fitting threaded in the conduit receiving portion.

16. An electrical box according to claim 9, wherein a front section face perimeter flange;

said flange a waterproofing resilient gasket affixed;

further including a U channel waterproofing gasket mounted on said flange.

17. An electrical box according to claim 9, wherein an assembly comprising of metal embodiments.

18. An electrical box according to claim 9, wherein an assembly comprising of fire resistant non-metallic material embodiments.

19. An electrical box according to claim 9, wherein an electrical box fabricated as a complete assembly.

20. An electrical box comprising a clamp member biasing toward an enclosure wall clamp grip ramp securing the conductor;

said clamp member and a cable retaining wall form a closure of a cable port;

said port perpendicular to said ramp;

further including said ramp in front of tip of said clamp, said ramp base perpendicular to said port, a gap between said tip and enclosure wall.