WO2003096509A2 - Through-wall electrical system - Google Patents
Through-wall electrical system Download PDFInfo
- Publication number
- WO2003096509A2 WO2003096509A2 PCT/US2003/013700 US0313700W WO03096509A2 WO 2003096509 A2 WO2003096509 A2 WO 2003096509A2 US 0313700 W US0313700 W US 0313700W WO 03096509 A2 WO03096509 A2 WO 03096509A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrical
- outlet
- wall
- coupled
- structural support
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/18—Distribution boxes; Connection or junction boxes providing line outlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
Definitions
- the invention relates generally to electrical outlet systems, and more specifically to a through-wall electrical box system designed to reduce labor and material costs associated with installing electrical wiring networks in various structures.
- electrical outlets and control modules are typically installed by attaching wires to screws appending from the sides of the outlet or the sides of the control module.
- These screws can present a safety hazard when they are connected within a live electrical wiring network, e.g. having live electrical current flowing through the network, and come into contact with a conductive surface, such as a metal electrical box or metal wall stud.
- a live electrical wiring network e.g. having live electrical current flowing through the network
- a conductive surface such as a metal electrical box or metal wall stud.
- the screws can cause accidental injuries to the hands of the person installing the outlet or the control module if a screwdriver that is used to tighten the screws slips off one of the screws.
- plaster ring plates that cover existing electrical boxes typically include an aperture for receiving the electrical outlet and/or control module that is centered in the frame. This placement of the aperture does not permit the most efficient use of space within the electrical box nor ease of electrical outlet and/or control module installation in a back-to-back installation.
- the system should be suitable for installing multiple electrical outlets and/or control modules o n each s ide of the wall, a nd should also reduce the risks associated with connecting the outlets and/or control modules to the wiring network via screws appending from the outlets and control modules. Additionally, the system should also satisfy code requirements to connect pigtails to the outlet and/or control module prior to connecting the module.
- a system for accessing an electrical wiring network from opposing sides of a wall.
- the wall includes at least one structural support and a wall covering coupled to the structural supports.
- the system includes a through-wall electrical box having a perimeter wall and two open sides. The open sides are located at opposing ends of the perimeter wall, thereby defining a passageway through the electrical box.
- the system includes a pair of frames coupled to the electrical box at the open sides, and at least one electrical outlet coupled to the frames. Each outlet includes a plurality of integral leads extending therefrom.
- a method for accessing an electrical wiring network from opposing sides of a wall having at least one structural support and a wall surface coupled to the structural s upport comprises providing an electrical box having a perimeter wall and two open sides that form a passageway through the electrical box, providing a pair of frames wherein each frame includes an aperture located off-center in the frame, and coupling one frame to each open side such that the apertures of the frames are positioned caddy-corner on opposing sides of the electrical box thereby providing space behind each aperture within said electrical box.
- an electrical outlet for use with an electrical wiring network.
- the outlet includes a plurality of integral leads extending therefrom that connect to the wiring network.
- a system for accessing an electrical wiring network from opposing sides of a wall that includes at least one structural support and a wall surface coupled to the structural support.
- the system includes an electrical box having a perimeter wall and two open sides. The open sides are located at opposing ends of the perimeter wall, thereby defining a passageway through said electrical box.
- the system includes a pair of frames. Each said frame includes an aperture located off-center in the frame. The frames couple to the open sides such that the apertures are positioned caddy-corner on the electrical box.
- the system includes at least one electrical outlet that is coupled to the apertures.
- an electrical box frame that includes an aperture located off- center within the frame.
- the aperture is suitable to receive at least one electrical outlet, and the frame is coupled to the electrical box such that space is provide behind the aperture within the electrical box when the electrical outlet is coupled to the aperture.
- Figure 1 is a schematic of a system for accessing an electrical wiring network from opposing sides of a common wall, in accordance with a preferred embodiment of the present invention
- Figure 2 is a perspective view of a frame used in the system shown in Figure 1 ;
- Figure 3 is a perspective view of an electrical outlet used in the system shown in Figure 1 ;
- Figure 4 is a perspective view of an alternate embodiment of the electrical outlet shown in Figure 3.
- Figure 5 is a schematic of an alternate embodiment of the system shown in Figure 1 including a plurality of electrical control modules. DETAILED DESCRIPTION OF THE INVENTION
- FIG. 1 is a schematic of a system 10 for accessing an electrical wiring network 16 from opposing sides of a common wall or partition (not shown), in accordance with a preferred embodiment of the present invention.
- Wiring network 16 sometimes referred to as an electrical system, is a network of wires installed in a building or other structure that provide and distribute electrical power throughout the building or structure.
- Wiring network 16 includes a plurality of n etwork b ranches 22 w hich a re i nstalled i nside t he w alls o r p artitions of the building or structure, thereby providing and distributing power throughout the building or structure.
- the term plurality is defined as at least two.
- Wiring network 16 is typically connected to a load center (not shown), also referred to as an breaker box or fuse box, which is the incoming point for electrical service to a residential or commercial building. However, for smaller buildings or structures other than buildings, wiring network 16 may be a subnetwork of a larger wiring network and therefore not directly connected to a breaker box.
- System 10 includes a through-wall electrical box 28 that is mounted to one of the structural supports using mounting devices 34 prior to the wall surface being attached to the structural support.
- electrical box 28 is shown in Figure 1 as having a rectangular shape, it is envisioned that electrical box 28 could have any suitable shape, such as circular, oval, or square.
- Mounting devices 34 include mounting apertures 36 for receiving nails, screws, or any other fastening device suitable to mount electrical box 28 to the wall or partition structural support.
- Electrical box 28 is constructed of any material suitable for use in electrical wiring networks, such as plastic or metal.
- mounting device 34 is shown in Figure 1 as an L-shaped bracket coupled to electrical box 28, it should not be so limited. Mounting device 34 could be any device, system or apparatus suitable for mounting any type of electrical box or similar device to the structural support of a wall or partition, as is well known by those skilled in the art.
- Electrical box 28 includes a perimeter wall 40 and two open sides 46 located at opposing ends of perimeter wall 40 thereby defining a passageway through electrical box 28.
- perimeter wall 40 has a depth 'd' approximately equal to the width of the structural support to which it is to be mounted. Therefore, electrical box 28 is constructed such that perimeter wall 40 has a specific predetermined depth 'd' that is based upon the width of the structural support used to construct the wall in which electrical box 28 is to b e i nstalled.
- perimeter wall 40 has a uni-body molded construction or is constructed from a single piece of material joined at opposing ends.
- electrical box 28 is constructed such that perimeter wall 40 is adjustable to be adapted to walls of various thicknesses.
- perimeter wall 40 is constructed of at least two pieces of material joined end-to-end.
- electrical box 28 is constructed such that perimeter wall 40 has a depth 'd' approximately equal to the width of the structural support plus twice the thickness of the wall surface that is to be attached to both sides of the structural support. Thus, perimeter wall 40 would have a depth 'd' that extends past both outer edges of the structural support a distance approximately equal to the thickness of the wall surface.
- electrical box 28 includes at least one wiring aperture 52 that allows at least one network branch 22 to pass therethrough.
- Wiring aperture 52 is shown in Figure 1 as a wiring aperture commonly known in the art as a knockout, but should not be so limited.
- Wiring aperture 52 could be any suitable aperture in electrical box 28 configured to allow at least one network branch 22 to p ass t herethrough.
- wiring aperture 52 could be an aperture in electrical box 28 fashioned to provide a strain relief feature that allows network branch 22 pass therethrough, but inhibits network branch 22 from being easily retracted from wiring aperture 52.
- Figure 1 shows wiring network 16 and network branches 22 free from an enclosure, such as electrical conduit, it is envisioned that wiring network may include a plurality of interconnectable enclosure sections, for example electrical conduit.
- System 10 further includes a pair of frames 58 that are coupled to electrical box 28 at open sides 46 prior to the wall covering being coupled to the structural support.
- Frames 58 are sometimes referred to in the art as plaster rings or plaster frames, and are constructed of any material suitable for use in electrical wiring networks, such as plastic or metal.
- frames 58 are coupled to electrical box 28 using a plurality of screws 64 inserted through a plurality of frame slots 70.
- frames 58 are coupled to electrical box 28 in any other suitable manner.
- frames 58 could include apertures through which screws 64 would be inserted, or screws 64 could be replaced with any other type of suitable connector such as, rivets or nylon press-in snap retainers.
- frames 58 could be hingedly connected at one side of perimeter wall 40 and coupled to perimeter wall 40 at the opposing side using any type of connector such as screws, rivets, a latch, or nylon press-in snap retainers.
- Frames 58 are further described below in reference to Figure 2.
- system 10 includes at least one electrical outlet 76 that includes a plurality of integral leads 82.
- plurality as used herein means at least two.
- At least one lead 82 is connected to a network branch 22 thereby providing electrical power to the respective electrical outlet 76, that is coupled to one frame 58.
- Electrical outlet 76 provides a source of, or connection point to, electricity flowing through electrical network 16. A person accesses the electricity by inserting a suitable plug adapter connected to any device that utilizes electricity (not shown), into mating electrical receptor holes 88 in electrical outlet 76.
- Electrical outlet 76 is sometimes known in the art as an electrical socket, or an electrical receptacle, but will be referred to herein as an electrical outlet. Electrical outlet 76 is further described below in reference to Figure 3.
- FIG 2 is a perspective view of one of the frames 58 shown in Figure 1.
- frames 58 couple to electrical box 28 (shown in Figure 1 ) at open sides 46 (shown in Figure 1 ) prior to the wall surface being coupled to the structural supports.
- frame 58 is shown in Figure 2 having a rectangular shape it should not be so limited. It is envisioned that frame 58 could have any suitable shape, such as circular, oval, or square.
- Each frame 58 includes a frame aperture 94 that is located off-center in frame 58, such that a centerline 'C of aperture 94 is substantially closer to one edge of frame 58 than the opposing edge of frame 58.
- Aperture 94 receives electrical outlet 76 (shown in Figure 1 ) when outlet 76 is coupled to frame 58.
- aperture 94 of at least one frame 58 receives at least two electrical outlets 76.
- aperture 94 is shown in Figure 2 having a rectangular shape, it is envisioned that aperture 94 could have any suitable shape, such as circular, oval, or square, and could have dimensions larger or smaller with respect to the overall size of frame 58 than is shown in Figure 2.
- aperture 94 includes a raised lip 100 extending along the perimeter of aperture 94 that has a predetermined height approximately equal to a thickness of the wall surface to be coupled to the structural support on which outlet box 28 is mounted.
- Raised lip 100 includes a plurality of tabs 106 that include threaded tab holes 112. Outlet 76 is mounted within aperture 94 by coupling outlet 76 to tabs 106.
- aperture 94 includes at least two raised lips 100 located at separate points along the perimeter of aperture 94, and each lip 100 includes at least one tab 106 that includes at least one threaded hole 112.
- FIG. 3 i s a p erspective f rant and back view of electrical outlet 76 used in the system 10 (shown in Figure 1 ).
- outlet 76 includes a plurality of integral leads 82 wherein at least one lead 82 is connected to wiring network 16 (shown in Figure 1 ).
- outlet 76 includes an internal conductive electrical receptor structure 114 having a plurality of receptors 116 configured to receive the plug adapter when the plug adapter is inserted through mating electrical receptor holes 88.
- Integral leads 82 are connected to electrical receptor structure 114 such that when outlet 76 is connected to wiring network 16, via leads 82, electrical current is provided at outlet 76 accessible via electrical receptor holes 88.
- each electrical outlet 76 includes at least one outlet mounting bracket 118 that includes at least one mounting hole 124.
- outlet 76 is coupled to frame 58 (shown in Figure 1 ) by inserting a screw through outlet mounting bracket hole 112 and threading the screw into tab hole 112 (shown in Figure 1 ).
- outlet 76 can be mounted to one of frames 58 by inserting a rivet or nylon press-in snap retainer through bracket hole 112 and into tab hole 112, or by any other suitable means.
- Electrical outlet 76 further includes an outlet housing 130 constructed of a non-conductive material, such as plastic or rubber.
- outlet housing 130 has a comprehensively non-conductive outer surface 136 free from conductive appendages or surfaces that are electrically active, or live, when outlet 76 is connected to wiring network 16.
- Known electrical outlets do not include leads 82, but instead typically include metal screw posts appending from the outlet housing to which a wiring network is connected either directly or via pigtails connected to the metal screw posts.
- each outlet housing 130 is free from any actively conductive appendages or surfaces, such as metal screw posts, or any other actively conductive metal appending from, protruding from, attached to, or otherwise exposed via an aperture in outlet housing 130 that would be in contact with or connected to wiring network 16.
- housing 130 is of two part construction comprising a first part having receptor holes 88 and a second part from which leads 82 extend.
- Each lead 82 includes a proximal end 142, a distal end 148, a wire 154, and an insulating layer 160 covering wire 154.
- Insulating layer 160 is constructed of any electrically insulating material, such as plastic or rubber.
- at least one lead 82 has a predetermined length of insulating layer 160 pre-stripped from distal end 148 thereby exposing a predetermined length of wire 154.
- Outlet 76 is thereby connected to wiring network 16 by connecting the pre-stripped end of at least one lead to a network branch 22.
- insulating layer 160 covers wire 154 from proximal end 142 to distal end 148, and outlet 76 is connected to wiring network 16 by stripping a desired length of insulating layer 160 from at least one lead 82, thereby exposing a desired length of wire 154, then connecting the exposed length of wire 154 to a network branch 22.
- proximal end 142 of each lead 82 extends through outlet housing 130 and is connected to actively conductive electrical receptor structure 114 inside outlet 76 such that each lead 82 is integrally formed, or assembled, with outlet 76.
- Proximal ends 142 are connected to receptor structure 114 inside outlet 76 using any suitable means such as soldering ends 142 to receptor structure 114, or using a crimping type connection, or using any type of suitable connector assembly, e.g. a jack, a plug, or a strain relief. Therefore, leads 82 are integrally formed or assembled with outlet 76.
- leads 82 extend from a back side 166 of outlet housing 130.
- leads 82 can extend from any other side of outlet housing 130.
- outlet 76 is suitable for use as part of system 10 as described above, and also suitable for use as a stand-alone electrical outlet suitable for u se i n conjunction with other known types and configurations of outlet boxes.
- leads 82 all extend individually from housing 130.
- leads 82 are bundled together inside a non-conductive casing and only a predetermined length of each distal end 148 extends past a distal end of the non-conductive casing.
- FIG 4 is an in alternate embodiment of outlet 76 wherein outlet 76 includes a first connector 161 of a connector module 162.
- First connector 161 is connected to receptor structure 114.
- the proximal ends 142 of each lead 82 are connected to a mating second connector 163 of connector module 162, thereby forming a subassembly that can be coupled with and decoupled from first connector 161. Therefore, the subassembly can be connected to network branch 22, and outlet 76 can subsequently be connected to network branch 22 by coupling the subassembly second connector 163 with mating first connector 161 of outlet 76.
- Connector module 162 can be any suitable electrical connection assembly such as a pronged plug assembly or any suitable modular electrical connection device.
- Figure 5 is an alternate embodiment of system 10 including a plurality of electrical control modules 172.
- Control modules 172 include a plurality of integral leads 178 that are integrally formed or assembled with control module 172 in the same manner and fashion as lead 82 (shown in Figure 3) are integrally formed with outlet 76 (shown in Figure 3). Additionally, integral leads 178 connect to a network branch 22 in the same manner and fashion as leads 82.
- Control modules 172 are any electrical control module, such as switches or rheostats, that monitor and/or control the flow of electricity. Additionally, control modules 172 connect to frames 58 in the same manner and fashion as electrical outlets 76 (shown in Figure 1).
- system 10 includes any combination of at least one electrical outlet 76 and at least one control module 172.
- system 10 has been described in conjunction with a commercial or residential electrical supply network, it is envisioned that system 10 could be utilized in conjunction with other networks that are utilized for the transmission of mediums other than electricity, such a light or sound.
- system 10 could be implemented in conjunction with a fiber optic network, or a low voltage communications network, e.g. telephone network, or a coaxial communication network, e.g. a cable television network, or a satellite communication network, or an audio network, e.g. an audio entertainment network or public address network.
- outlets 76 and control modules 172 would be outlets and control modules associated with such networks.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003231256A AU2003231256A1 (en) | 2002-05-07 | 2003-04-30 | Through-wall electrical system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/141,695 | 2002-05-07 | ||
US10/141,695 US6774307B2 (en) | 2002-05-07 | 2002-05-07 | Through-wall electrical system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003096509A2 true WO2003096509A2 (en) | 2003-11-20 |
WO2003096509A3 WO2003096509A3 (en) | 2004-03-11 |
Family
ID=29399728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/013700 WO2003096509A2 (en) | 2002-05-07 | 2003-04-30 | Through-wall electrical system |
Country Status (3)
Country | Link |
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US (4) | US6774307B2 (en) |
AU (1) | AU2003231256A1 (en) |
WO (1) | WO2003096509A2 (en) |
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US3814834A (en) * | 1972-11-13 | 1974-06-04 | J Glader | Electrical outlet box |
US4842551A (en) * | 1986-07-11 | 1989-06-27 | Heimann Anthony J | Modular connector assembly for electrical utility box |
US5965844A (en) * | 1997-09-30 | 1999-10-12 | Lippa; Jerome M. | Mounting plate and cover for two electrical boxes in the same horizontal plane and method for installation |
Also Published As
Publication number | Publication date |
---|---|
AU2003231256A1 (en) | 2003-11-11 |
US20060175070A1 (en) | 2006-08-10 |
AU2003231256A8 (en) | 2003-11-11 |
US20030209358A1 (en) | 2003-11-13 |
WO2003096509A3 (en) | 2004-03-11 |
US20050006124A1 (en) | 2005-01-13 |
US8058552B2 (en) | 2011-11-15 |
US7754967B2 (en) | 2010-07-13 |
US6774307B2 (en) | 2004-08-10 |
US20100240249A1 (en) | 2010-09-23 |
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