US3771103A - System for the installation of electrical cables - Google Patents

System for the installation of electrical cables Download PDF

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Publication number
US3771103A
US3771103A US00219996A US3771103DA US3771103A US 3771103 A US3771103 A US 3771103A US 00219996 A US00219996 A US 00219996A US 3771103D A US3771103D A US 3771103DA US 3771103 A US3771103 A US 3771103A
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US
United States
Prior art keywords
contact
slots
duct
support means
resilient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00219996A
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English (en)
Inventor
G Attema
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OGOMAT NV RES
Original Assignee
OGOMAT NV RES
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL7100995A external-priority patent/NL7100995A/xx
Priority claimed from NL7108031A external-priority patent/NL7108031A/xx
Application filed by OGOMAT NV RES filed Critical OGOMAT NV RES
Application granted granted Critical
Publication of US3771103A publication Critical patent/US3771103A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/18—Means for suspending the supporting construction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0823—Parallel wires, incorporated in a flat insulating profile
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4538—Covers sliding or withdrawing in the direction of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts
    • 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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • 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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings

Definitions

  • Van Deventer 339/21 R means clamped m the cable duct 2,192,899 3/1940 Edmonson 339/21 R 27 Claims, 15 Drawing Figures PATENTEDNUV 6 I975 SHEET 2 BF 3 Fig 7 Fig,
  • the invention refers to the installation of electrical conductors.
  • FIG. 1 is a cross-section of a base for receiving electrical conductors
  • FIG. 2 is a cross-section of a cable duct with a base and conductors according to FIG. I placed therein;
  • FIGS. 3 and 4 are cross-sections of other cable ducts in accordance with the invention, that of FIG. 3 being a support for a ceiling and that of FIG. serving as a hollow skirting board;
  • FIG. 5 is a fragmentary cross-section of an assembly of base, conductors and a cable duct incorporating means for making electrical contact with the conductors;
  • FIG. 6 is an isometric view, partly in section, of a device for making electrical contact with the conductors
  • FIGS. 7 and 8 show respectively a plan and a side elevation of another contact device
  • FIGS. 9A and 9B are sections of twocontact-strip holders for the contact device of FIGS. 7 and 8;
  • FIGS. 10A and 10B are respectively a fragmentary cross-section and a fragmentary cross-section to a much enlarged scale, of a complete contact device of which the portion shown in FIGS. 7 and 8 forms part;
  • FIG. 11 is a longitudinal section through the contact device of FIG. 7 to which a cable duct has been connected;
  • FIGS. 12 and 13 are cross-sections of a modified base with conductors.
  • a cable-base element or casing in accordance with the invention shown in FIG. 1 comprises a lower part 1 of an electricallyinsulating resilient plastics material having grooves 2 each communicating with the upper surface of the part 1 through a respective slot 3. Naked solid or braided conductors can be received in the grooves 2 and are insulated from each other by the intervening parts 4 of the lower part 1.
  • the width of the slots 3 can be less than the transverse dimensions of the conductors, since the conductors'can be pressed into the grooves 2 by utilizing the elasticity of the plastics material. It is also possible to place insulated conductors in these grooves, for example telephone or bell wires.
  • a cover part 5 is connected along one longitudinal edge to the lower part 1 by means of an intermediate thinner part 6 acting as a hinge. Towards the other edge the cover part5 has an integral rib 7 with a beaded free edge. The rib 7 is connected by means of a further part of reduced thickness 8 to a projection 9 and to an engaging strip 10 which strip in the relaxed state, forms a straight extension of the cover part 5. That one of the grooves 2 situated farthest from the cover part 5 communicates with the upper surface of the lower part through a groove 3' which groove is shaped to receive the beaded edge of the rib 7.
  • the end surfaces of the lower part 1 are so shaped that they augment the inherent flexibility to facilitate introduction into a cableduct.
  • FIG. 2 shows the base of FIG. 1 installed in a cableduct 11.
  • the duct is shaped as a substantially U- section.
  • the base of this section is provided with longitudinal outwardly-extending projections or ridges 12 which are preferably continuous and in which the heads of fixing screws can be received without projecting.
  • the section has inwardly-extending ribs 13 at the free edges as well as with other ribs 14 parallel thereto and each spaced inwardly from the respective free edges.
  • the duct 11 is preferably an extended plastics section. After the conductors have been placed into in the grooves 2, the cover-part 5 is closed so that the head of the rib 7 is received by in the groove 3 and the cover part 5 is thus retained on the lower part 1.
  • the edge of the lower part 1 adjacent to the hinge 6 is engaged behind one of the longitudinal ribs 4 of the duct, and the bottom part 1 is then pressed into the duct 1 1, so that the opposite edge if snapped behind the other longitudinal rib 14.
  • the projection 9 rests against the side of the duct carrying the other rib so that the engaging strip 10 is bent upwardly. This strip can then readily be grasped in order to re-open the cover, as required for example when contact is to be made with the conductors 15, for which purpose a portion of the cover can be cut away.
  • FIG. 3 shows a cable-duct similar to that of FIG. 2, comprising a substantiallyU-shaped section 16 and an integral substantially Cshaped section 17.
  • the section 17 is shaped to receive a junction piece 18 of a suspension rod, which piece is placed longways into the opening of the section 17 and engaged therein by turning through a quarter turn.
  • an external beaded rib 19 is provided at the face of the section 16 opposite to that at which the C-section is arranged.
  • the section 16 is provided with longitudinal ribs 13 and 14 in like manner to the cable duct of FIG. 2.
  • the cable-duct of FIG. 4 is similar to that of FIG. 3 but is further provided, below the section 16, with one or more additional U-sections 16' of smaller dimensions for example, for accommodating low tension cables or branch cables.
  • This cable-duct can be closed off with a cover 20 which has, in this embodiment, a transverse flange 21 secured to the section 17 by a screw 22 screwed into a member 23-.
  • a cover 20 which has, in this embodiment, a transverse flange 21 secured to the section 17 by a screw 22 screwed into a member 23-.
  • integral claws 24 or a longitudinal hooked flange engages behind a rib 13' provided at the free edge section 16.
  • the cover may alternatively be closed by a snap-lock.
  • FIG. shows a device for making electrical contact I with the conductors received in the grooves 2 and comprises a support fitted between the end ribs 13 of one of the sections according to any one of FIGS. 2, 3 and 4.
  • the support 25 has retractable resilient positioning members 26 which can engage behind the rib 13.
  • These resilient members 26 can be formed in various ways as will be described in more detail hereinafter. Preferably, as shown, these members are bevelled at the underside and provide support by their inherent resiliency, so that the support 25 of the contact members can simply be pressed past the ribs 13 into the cable-duct. If necessary the U-section can be provided with additional ribs 14 on which additional members 26 can engage.
  • Contact-strips 28 pass through holes 2 in the support and are biased by springs 29, which strips, in the operative position asshown, contact with a respective conductor through a corresponding slot 3. These strips 28 are distributed over the length of the support to provide insulation between the strips.
  • the cross-section of each strip is sufficiently large for the anticipated current and the contact face of each strip is sufficiently narrow to ensure good contact with the respective circular conductor 15 under the bias of the corresponding spring 29. With a braided conductor 15, the strips 29 will slightly penetrate into the conductor so that a good contact is always provided.
  • each strip 28 is a tight fit in the corresponding slot 3.
  • the support 25 comprises a plate 30 and an upper part 31 (broken lines).
  • the strips 28 have right angled bends so that parts 29 situated above the plate 30 act as biassing springs.
  • a connecting screw 32 is provided at the free end of each part 29'. which can be connected for instance with a socket outlet or the like to be fixed on the upper part 31.
  • each shaft may carry two or more cams 26, depending on the shape of the applied profile.
  • the rod 33 may have wedge-shaped surfaces which urge the strips 28 downward during the locking operation in order to increase the contact pressure.
  • FIGS. 7 to 11 show a preferred embodiment of the contact device.
  • the support means for the resiliently biased contact strips here comprises a rectangular plastics box like housing 37 having slots 27 in the bottom thereof. At the shorter end faces of the box 37 slightly resilient connection pieces 38 are provided, at the end of which clamping claws 39 are formed which carry the projections 26 and have holes 40. By inserting the noses of a pair of pliers in these holes the claws 39 may alternative embodiments.
  • the holder of FIG. 9A comprises a substantially U- section or a substantially C-section frame 43 and a slot 44 in the one leg into which a substantially T-shaped contact strip 28 can be inserted.
  • a spring 29 rests against the cross-piece of the strip and is fixed to the frame 43 at the opposite end by means of a fixing screw 45 which also acts as a connection screw. when necessary an additional connection screw 45 can cooperate with this leg of the frame 43.
  • FIG. 9B shows an embodiment in which the crosspiece 28' of the contact-strip 28 is bent at right angles whereas the slot 44 is so disposed that this cross-piece can slide along the upright base part of the frame 43.
  • the spring 29 takes the form of a hairpin-spring which is fixed to the one leg of the frame by means of the screw 45, and which rests at its other extremity, against the cross-pin 28', thus urging the latter against the con-' necting leg of the frame 43 and thereby guiding it.
  • FIGS. 10 and 11 show a complete support comprising, in addition to the box 37, an upper box 46 which is secured to the lower box by means of a dove-tail or other connection 47.
  • the upper box is shallower near the connection with the lower box and is, there, subdivided by means of transverse partitions 48 into compartments 49 which correspond, in the assembled state, with the partitions 41 of the lower box.
  • the partitions 41 have projecting ribs 50 fitting into corresponding grooves of of the partitions 48 of the upper box, as shown in FIG. 10B.
  • the partitions 48 have support-ribs 51 against which a contact-strip frame, mounted on the corresponding compartment of the lower box, can rest, so that these frames are held firmly and mutually insulated between the two boxes.
  • the box 46 is deeper alongside the cable duct 11, which deeper part can be used for effecting an electrical connection and to accommodate a socket outlet, switch or the like, which can be installed in a recessed mounting in a cover plate 52 of the box 46. It is also possible to mount such switching or contact means on the shallow part of the upper box in which case the deeper part can be omitted. Also the upper box can be made wider than the lower box in order to accommodate a number of such switching or contact means next to each other.
  • One side wall of the upper box 46 may be provided with opposed recesses 53, closed off by means of a frangible partition, through which conduit tubes or cables can be introduced.
  • a frangible partition through which conduit tubes or cables can be introduced.
  • a complete connecting box into which the contact strips frames have been inserted can be inserted in a cable-duct 11.
  • the contact strips 28 penetrate into the corresponding slots 3, whereby the springs 29 are compressed.
  • the projections 26 then snap behind the longitudinal ribs 13 of the cable duct thus locking the box in the duct.
  • One of the contact strips is intended to form ground connection and it will be, preferably, made longer than the other contact strips in order to establish the ground connection earlier than the other connections and to maintain it longer at disassembly. It is also possible to place the frame 43 for the ground connection lower in the lower box 37 than the other frames, for example, by providing additional supports in the compartments for the other contact-strip frames.
  • the cable duct 11 is constructed as a skirting board, as shown in FIG. 4, a plastics cover is used, which can easily be broken away over a length corresponding with the width of the lower box 37.
  • corner junction and branch pieces can be used by means of which different cableducts can be joined together, for example by means of interengaging snap connections.
  • FIGS. 1 and 2 can be considerably simplified when, as shown in FIGS. 12 and 13, the cover plate 5 is replaced bya cover layer 54, glued or welded at 55 to the top of the lower part 1, and made out of plastics with such characteristics that the contact strips 28 can be pressed through this layer without removing material, whereas, after withdrawing these contact-strips, the thus formed openings 56 substantially close up by the elasticity of the material as shown at 56 in FIG. 13.
  • This is, in particular, advantageous when the connections with the conductors have to change position often, for example when the connection device forms part of a lampholder which, depending on the desired lighting effect, should be moved along a support or duct in which the cable is situated, as for example for illumination of exhibition and display rooms.
  • the hereinbefore described constructions provide an effective insulation and protection of conductors against corrosion.
  • the base 1 can be used without a cable-duct or other cover. What we claim is:
  • a system for installing plural, preferably round conductors for establishing a cable as well as connections to the said conductors of the cable comprising:
  • a flexible, elongated base element of rectangular cross section and made of electrically insulative material the base having plural internal, parallel, longitudinal grooves individually receiving the con ductors, further having narrow slots communicating with and for access to said grooves and through which the condcutors pass when being placed into the grooves, the slots being narrower than the conductors;
  • a cable duct having U-shaped cross section receiving the base element in abutment with the base of the U, the inside of the legs of the U being provided with ribs behind which the base element rests when inserted into the duct, for retaining the base element in the duct, the said slots in the base element open to the open portion of the U, the legs of the U having additional ribs near or at the respective ends of the legs and facing each other;
  • resilient means in the support means for urging the individual contact pins through the slots in said member and into contact making engagement with the respective conductors therein, and for maintaining said contact making engagement, the sides of said slots resiliently gripping said contact pins as they are inserted through said slots.
  • a system according to claim 7, comprising a fixing component fitting into the additional C-section portion, the length of which component is not smaller than the largest interior width of the C-section, whereas the width of said component is'smaller than the width of the opening of this section, which component is or can be connected either to a suspension rod or to a fixingscrew for a cover plate for the cable duct.
  • said resilient positioning members comprise pairs of resilient claws which are movable inwardly to free the support from the duct.
  • the support means including a box-like housing having slots through which the contact pins extend, and contact pin holders in said housing, each for holding one of said contact pins in position for traversing the respective slots in the housing and a respective aligned one of said slots in the base element.
  • said snap action means comprises a beaded longitudinal rib on the cover and arranged to engage in a complementary longitudinal additional groove in the base member when the cover is closed.
  • a system according to claim 1 and including individual holders for each contact pin, said resilient means including individual resilient elements, each contact pin being resiliently supported in the respective holder by the respective resilient element, each said holder being releasably connected to the support.
  • said support means including a bar with a plurality of apertures, each receiving one of said electrical contact pins; said resilient means being springs on the bar for biasing the contact pins into engagement with the respective conductors in the grooves.
  • the said support means is of substantially rectangular contour of which the width is not larger than the width of the U- opening in the cable duct, said support means having a plurality of rectangular section slots distributed over the length of the support means, the longitudinal axis of each slot extending substantially parallel to the longitudinal dimension of the support means, and which slots are so staggered transversely that each one is located opposite a conductor of the base member when the support means as disposed in the duct, said contact pins being strips and resiliently supported in the respective slots.
  • the support means comprises a first and second component, the first component carrying the resilient positioning members and the contact strips, the second component being detachably secured to the first component and including oppositely directed support parts for the first component.
  • the resilient means being plural springs, respectively held by and bearing against a contact pin holder.
  • said resilient positioning members include clamping claws and a longitudinally slidable rod by means of which the clamping claws as situated near longitudinal sides of the support means can be turned outward to engage the sides of the cable duct.
  • each holder consists of a substantially C-shaped or U-shaped frame and being provided with connection means, each contact pin being a strip protruding through a slot in a leg of the respective frame, and wherein said resilient elements are springs, respectively acting between the opposite leg of the frame and a cross-piece of the contact strip.
  • cross-piece of said contact strip extends at right angles to the main part thereof and can slide along an adjacent connecting leg of the frame, the spring being a hairpin spring which exerts a bias on the cross-piece towards this connecting leg.
  • contact pins are resilient strips and are so shaped that they extend substantially at right angles above the support means, and the parts extending above the support means are maintained in position under the rod and act as springs for biasing these parts of the strips as extending beyond the rod.
  • one of said contact pins is provided to establish a connection with a ground conductor of the cable, before the coupling operation of the contact device with a duct, and

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Multi-Conductor Connections (AREA)
US00219996A 1971-01-26 1972-01-24 System for the installation of electrical cables Expired - Lifetime US3771103A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7100995A NL7100995A (de) 1971-01-26 1971-01-26
NL7108031A NL7108031A (de) 1971-06-11 1971-06-11

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US3771103A true US3771103A (en) 1973-11-06

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US00219996A Expired - Lifetime US3771103A (en) 1971-01-26 1972-01-24 System for the installation of electrical cables

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US (1) US3771103A (de)
CA (1) CA939030A (de)
CH (1) CH525575A (de)
GB (1) GB1370696A (de)
SE (1) SE385066B (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871729A (en) * 1971-10-06 1975-03-18 Researchcentrum Ogemat System for the installation of electric wiring in a building
FR2578109A1 (fr) * 1985-02-25 1986-08-29 Willemann Claude Canalisation electrique rigide pour l'alimentation d'appareils mobiles ou stationnaires
US4671585A (en) * 1986-06-16 1987-06-09 National Service Industries Luminaire adaptor assembly
US6069315A (en) * 1997-03-10 2000-05-30 Tang; Danny Q. Cable clamping apparatus for junction box
US6150737A (en) * 1985-03-08 2000-11-21 Nilssen; Ole K. Auxiliary power distribution system
EP1750341A1 (de) * 2005-08-04 2007-02-07 Bticino S.P.A. Vorgefertigtes und wasserdichtes Kanalelement für eine elektrische Energieverteilung und Verfahren zur dessen Herstellung
EP1750342A1 (de) * 2005-08-04 2007-02-07 Bticino S.P.A. Vorgefertigtes und wasserdichtes Kanalelement für eine elektrische Energieverteilung und Verfahren zur dessen Herstellung
EP1816395A1 (de) * 2006-02-02 2007-08-08 Bticino S.P.A. Abgedichteter Steckverbinder zur elektrischen Verbindung mit einer Kontaktschiene
WO2008046621A3 (de) * 2006-10-18 2008-07-31 Elabo Gmbh Kabelführung
US20100139945A1 (en) * 2008-12-04 2010-06-10 Enphase Energy, Inc. Mounting rail and power distribution system for use in a photovoltaic system
US20100181098A1 (en) * 2007-06-11 2010-07-22 Conductix-Wampfler Ag Insulating profile for a conductor line
US20100252297A1 (en) * 2007-06-11 2010-10-07 Conductix-Wampfler Ag Multi-pole conductor line
EP2477283A3 (de) * 2002-12-18 2013-04-24 Power & Communications Logistics Pty Limited Kontaktanordnung und verlängerter elektrischer Leiter
US20170179656A1 (en) * 2015-12-22 2017-06-22 c/o Apure Holding LLC Busbar, consumer unit, use of such a consumer unit, power transmission device and building element
CN108109763A (zh) * 2018-01-29 2018-06-01 国网江苏省电力有限公司仪征市供电分公司 一种电缆相位标识及其安装操作杆
DE102017125270B3 (de) 2017-10-27 2019-03-21 Wago Verwaltungsgesellschaft Mbh Abgriffsteckverbinder

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IT1153510B (it) * 1982-05-04 1987-01-14 Guido Zucchini Struttura a zoccolo per la distribuzione di energia elettrica a altri servizi similari in locali di uso civile
GB2185863B (en) * 1986-01-28 1990-07-18 Illuma Designs Limited Tracked lighting systems
GB2212338A (en) * 1987-11-06 1989-07-19 Asher Syst Furniture Ltd Cable management pad
GB2414869A (en) * 2003-08-18 2005-12-07 John Ashton Sinclair Electrical plug and busbar system

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FR1261306A (fr) * 1960-04-02 1961-05-19 Telemecanique Electrique Système de distribution intérieure de courant électrique
US3106602A (en) * 1961-08-07 1963-10-08 Automatic Elect Lab Design of telephone terminal block
US3422387A (en) * 1964-06-30 1969-01-14 Porter Co Inc H K Electric current power-take-off device for enclosed busway systems
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NL284707A (de) *
DE206960C (de) *
US2192899A (en) * 1938-01-15 1940-03-12 George S Edmonson Linear molded article for housing electrical conductors
US2267610A (en) * 1939-03-15 1941-12-23 Sr Nicholas La Jone Continuous electrical outlet and method of making same
US2361721A (en) * 1941-10-02 1944-10-31 Harry R Van Deventer Electric circuit molding
FR1261306A (fr) * 1960-04-02 1961-05-19 Telemecanique Electrique Système de distribution intérieure de courant électrique
US3106602A (en) * 1961-08-07 1963-10-08 Automatic Elect Lab Design of telephone terminal block
US3422387A (en) * 1964-06-30 1969-01-14 Porter Co Inc H K Electric current power-take-off device for enclosed busway systems
US3613045A (en) * 1969-11-26 1971-10-12 Us Industries Inc Adapter for a power distribution system

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871729A (en) * 1971-10-06 1975-03-18 Researchcentrum Ogemat System for the installation of electric wiring in a building
FR2578109A1 (fr) * 1985-02-25 1986-08-29 Willemann Claude Canalisation electrique rigide pour l'alimentation d'appareils mobiles ou stationnaires
US6150737A (en) * 1985-03-08 2000-11-21 Nilssen; Ole K. Auxiliary power distribution system
US4671585A (en) * 1986-06-16 1987-06-09 National Service Industries Luminaire adaptor assembly
US6069315A (en) * 1997-03-10 2000-05-30 Tang; Danny Q. Cable clamping apparatus for junction box
EP2477283A3 (de) * 2002-12-18 2013-04-24 Power & Communications Logistics Pty Limited Kontaktanordnung und verlängerter elektrischer Leiter
EP1750342A1 (de) * 2005-08-04 2007-02-07 Bticino S.P.A. Vorgefertigtes und wasserdichtes Kanalelement für eine elektrische Energieverteilung und Verfahren zur dessen Herstellung
WO2007017134A1 (en) * 2005-08-04 2007-02-15 Bticino S.P.A. Prefabricated leaktight duct member for the distribution of electrical power and related method of manufacture
WO2007017133A1 (en) * 2005-08-04 2007-02-15 Bticino S.P.A. Prefabricated leaktight duct member for the distribution of electrical power
EP1750341A1 (de) * 2005-08-04 2007-02-07 Bticino S.P.A. Vorgefertigtes und wasserdichtes Kanalelement für eine elektrische Energieverteilung und Verfahren zur dessen Herstellung
EP1816395A1 (de) * 2006-02-02 2007-08-08 Bticino S.P.A. Abgedichteter Steckverbinder zur elektrischen Verbindung mit einer Kontaktschiene
WO2007087983A1 (en) * 2006-02-02 2007-08-09 Bticino S.P.A. Leaktight plug for electrical connection to a bus duct
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SE385066B (sv) 1976-05-31
CA939030A (en) 1973-12-25
CH525575A (de) 1972-07-15
GB1370696A (en) 1974-10-16

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