Modularized electrical box systems
First Claim
1. A gangable modular electrical box configuration, comprising in combination,at least two interfitting modules for assembling into a substantially quadrilateral four-sided open-front, closed-back electrical box assembly of a predetermined interior volume, a first one of said at least two interfitting modules comprising an electrical box frame having at least one open side and a closed back, and a second one of said at least two interfitting modules comprising a removable electrical box member having sidewall structure mateable on said open side of said first one of said at least two interfitting modules to form said unitary stably mated structure, andmating interlocking structure overlapping at least said first and second of said at least two interfitting modules for interfitting said first and second modules for forming therefrom said unitary stably mated structure, said mated structure comprising channelwork having respective tongue and groove members integrally supported by respective ones of said first and second modules about said open side of the second interfitting module, and additional mating interlocking structure comprising support means overlapping said first and second ones of said at least two interfitting modules to form a mechanically supporting joint at the closed back of at least said first one of said at least two interfitting modules, with said tongue and groove members being slidably engaged and disengaged by movement of one of said first and second of said at least two interfitting modules in a direction perpendicular to the closed back of the first said interfitting module to comprise said electrical box frame thereby to comprise with said additional mating interlocking structure a mechanically supported joint at least in part frictionally holding the two mated modules engaged unitarily.
0 Assignments
0 Petitions
Accused Products
Abstract
A modularized electric box system provides a minimum of modular elements, typically two or three from which a basic anchor box may be formed with protruding members for support by a building body, and from which gangable extensions thereto may be fashioned. The modules may constitute a basic open front electrical box frame having at least one open side with interlocking structure for receiving and supporting either a sidewall panel or a gangable U-shaped extension box module. An anchoring box may be formed with anchoring structure integrally protruding from end panels thereof adapted for attachment to a building body. Thus minimally a basic U-shaped box frame module without sidewalls interlockable with a similar module and a removable sidewall module interlockable upon a U-shaped box frame at the open sidewalls will form a gangable box system. Interlocking channelwork permits unimpeded insertion and removal of modules by sliding movement perpendicular to the open box fronts. Thus, low cost retrofit installations may be made from a minimal inventory of parts to add one or more expansion boxes for creating a ganged system with little damage to the original wall site.
-
Citations
23 Claims
-
1. A gangable modular electrical box configuration, comprising in combination,
at least two interfitting modules for assembling into a substantially quadrilateral four-sided open-front, closed-back electrical box assembly of a predetermined interior volume, a first one of said at least two interfitting modules comprising an electrical box frame having at least one open side and a closed back, and a second one of said at least two interfitting modules comprising a removable electrical box member having sidewall structure mateable on said open side of said first one of said at least two interfitting modules to form said unitary stably mated structure, and mating interlocking structure overlapping at least said first and second of said at least two interfitting modules for interfitting said first and second modules for forming therefrom said unitary stably mated structure, said mated structure comprising channelwork having respective tongue and groove members integrally supported by respective ones of said first and second modules about said open side of the second interfitting module, and additional mating interlocking structure comprising support means overlapping said first and second ones of said at least two interfitting modules to form a mechanically supporting joint at the closed back of at least said first one of said at least two interfitting modules, with said tongue and groove members being slidably engaged and disengaged by movement of one of said first and second of said at least two interfitting modules in a direction perpendicular to the closed back of the first said interfitting module to comprise said electrical box frame thereby to comprise with said additional mating interlocking structure a mechanically supported joint at least in part frictionally holding the two mated modules engaged unitarily.
-
18. An electric box system forming from a predetermined number of interlocked standard modular parts a unitary electrical box configuration which is particularly adapted for simplified expansion of internal box volume of anchored electrical boxes affixed to a building structural element by formation of a ganged box array with at least one added extension box module interlocked with and supported primarily by the anchored box, comprising in combination:
-
a set of no more than three basic interfitting modules for producing self standing substantially rectangular open front electrical boxes, said set consisting of an open front U-shaped extension box frame module with two open sides and integrally attached interlocking structure for receiving and supporting on the two open sides end panel modules for forming a substantially rectangular electrical box with closed sides, and a pair of removable end panel modules with integrally attached mating interlocking structure for assembly upon and support by the extension box frame module interlocking structure in a mounting movement perpendicular to said open front and parallel to the side walls without accompanying lateral movement, said interlocking structure on the extension box frame module and the mating interlocking structure on the end panel modules comprising respective tongue and groove shaped female and male members axially aligned to mate the extension box frame with two side closure modular members, the mating interlocking structure being disposed as substantially said tongue and groove members being movably disposed to mate into and out of contiguous side-by-side mated positions in an electrical box array without obstruction of axial movement of the interlocking structure being mated in said mounting movement in the mating process, and intermodular fastening means overlapping contiguous modules for retaining the side closure members in engagement with the frame in a shared support joint. - View Dependent Claims (19, 20, 21, 22)
-
-
23. A multiple ganged modular electric box array, comprising in combination, a plurality of ganged modules including one module of said plurality of ganged modules located at one end of the ganged array comprising an anchor box firmly affixed to a building element, and at least one fanged module of said plurality of ganged modules being ganged to the anchor box by interlocking structure thereby to comprise primary support structure firmly fixing the ganged array to the anchor box, and further comprising secondary support structure integrally carried by an outside wall of said ganged module for anchoring a guy wire extending from said secondary support structure to a predetermined anchoring site.
Specification