Abstract: One embodiment of a non-metallic floor box for use in electrical in-floor power and communication distribution systems for office buildings and the like includes a closed housing having a base, a top and vertically extending side walls defining an interior volume. The floor box prevents concrete from entering the housing during pouring and setting of the concrete floor, and is adapted to be cut off substantially flush with and parallel to the concrete floor in which it is set. The floor box housing includes gradient markings disposed on at least one of its side walls to indicate the interior volume of the housing and/or the depth of the concrete floor.

Abstract: A preset is provided for providing access at selected locations to an underfloor electrical distribution system of the type consisting of at least one raceway panel adapted to be positioned in a concrete floor. The raceway panel defines an interior passage adapted to carry service cables and has an exterior wall defining a preset opening that provides access to the interior passage. The presets can be located at any location where an opening is punched in the raceway panel, with 12 inch or 24 inch intervals being mostcommon. The preset includes a housing having an interior compartment, a concrete cap, and a knockout section. The concrete cap and the knockout section can be removed to provide access to the interior compartment of the preset housing. The knockout is positioned to align with and lockingly engage with the preset opening to secure the preset to the raceway panel during pouring of the concrete floor.

Abstract: The in-floor, flush poke-through wiring fitting may be installed in the floor of a structure to enable the activation of power, communication, and/or data services at the fitting location. The poke-through fitting includes an interference shielding barrier to prevent E.M. and R.F. interference with the signal services. The poke-through fitting also includes pre-shaped fire-retarding materials, which are encapsulated to prevent degradation and damage. The poke-through fitting accommodates RJ-45 Category 5 signal jacks such that the faces of the jacks (that is, the faces that may receive selectively, RJ-45 Category 5 connectors) are mounted substantially flush with an upper outwardly facing surface of the fitting.

Abstract: An electrical floor box providing connections to one or more in-floor service distribution systems includes lower and upper portions defining a hollow interior and a plurality of wiring compartments and conduction tunnels interconnecting the wiring compartments. The lower portion includes a base and a plurality of side walls extending upwardly from the base. The upper portion is slidably connectable to the lower portion forming the hollow interior and the wiring compartments which extend outwardly from, and open to, the hollow interior. The upper portion also includes a top opening which provides access to the hollow interior.

Abstract: A non-metallic floor box for use in electrical in-floor power and communication distribution systems includes a plurality of sets of vertically aligned indexing teeth formed in the interior of the housing side wall. An adapter ring is sized for insertion into the housing interior for supporting an activation kit above the housing interior compartment. The adapter ring has flanges extending from its periphery which are positioned to reciprocally mate with the vertical rows of teeth when the adapter ring is inserted into the housing interior compartment. The flanges and teeth are constructed to permit the ring to be inserted into the housing but to restrict its removal from the housing after its insertion therein. An activation cover is securable to the top of the adapter ring and extends beyond the perimeter of the side wall to limit the distance the adapter ring can be inserted into the housing.

Abstract: A non-metallic floor box for use in electrical in-floor power and communication distribution systems for office buildings and the like is disclosed. One embodiment of the floor box includes a closed housing having a base, a top and vertically extending side walls defining an interior volume. The disclosed floor box prevents concrete from entering the housing during pouring and setting of the concrete floor, and is adapted to be cut off substantially flush with and parallel to the concrete floor in which it is set. The floor box housing includes gradient markings disposed on at least one of its side walls to indicate the interior volume of the housing and/or the depth of the concrete floor.

Abstract: A modular power distribution system is ideally suited for use in modular buildings of the type in which prefabricated building modules are constructed at a manufacturing factory and shipped to a remote building site where the modules are interconnected to form the complete structure. The modular power distribution system includes a primary power distribution panel positioned in one of the building modules and is adapted to distribute power from the utility service to the building modules. Modular power distribution units positioned in each of the building modules are adapted to distribute power within a respective building module. The primary power distribution panel has a plurality of main circuit breakers, each of which is electrically connected between the utility service and one of the modular power distribution units for limiting the maximum current through a respective modular power distribution unit.

Abstract: A trench raceway providing multiple wire passages between an undersurface and an access surface. The access surface defines an access passage with opposing first and second access sides. The trench raceway includes a plurality of support pedestals, a trench pan, and an adjustable pan support.The pedestals provide support to the first and second sides of the access surface. The pedestals include an undersurface support, a floor support having a floor support portion and an access passage portion, and an adjustable central section intermediate the undersurface support and the floor support. The trench pan is adapted to be supported by the first and second access sides of the trench raceway to provide the multiple wiring passageways. The trench pan includes a pan section with a support passage intermediate a first and second flank supported by the access passage portions of the support pedestals.

Abstract: This patent discloses a floor box for use with in-floor service distribution systems. The floor box defines wiring compartments in which connectors may be mounted and is constructed so that conductors can be routed through the floor box from one wiring compartment to another. The floor box also accepts barriers that are selectively positioned in the floor box to separate conductors in separate wiring compartments. The floor box accepts connectors of different services is constructed to facilitate assembly of connectors and mounting hardware as well as routing conductors through the floor box.

Abstract: This patent discloses a method and apparatus for activation of services in a concrete floor of an office building from below floor slab distribution systems. Void-forming boxes that are secured to a conventional metal deck sheet and surrounded by the concrete floor slab provide chambers in which in-floor activations are mounted. An insulating block in the void-forming box restores fire resistance, prior to installation of an activation kit, that is lost by displacement of concrete by the void-forming box. An in-floor activation kit may be installed within the void-forming box and connected to a below floor slab distribution system through an activation opening cut in the metal deck sheet. Connection hardware is secured to the metal deck sheet for connection to a conventional below-floor slab service distribution system providing communication from the interior of the void-forming box to the below-floor slab service distribution system.