CA1280802C - Earthing system for an apparatus cabinet - Google Patents
Earthing system for an apparatus cabinetInfo
- Publication number
- CA1280802C CA1280802C CA000511009A CA511009A CA1280802C CA 1280802 C CA1280802 C CA 1280802C CA 000511009 A CA000511009 A CA 000511009A CA 511009 A CA511009 A CA 511009A CA 1280802 C CA1280802 C CA 1280802C
- Authority
- CA
- Canada
- Prior art keywords
- bars
- contact
- plate
- earthing system
- contact plate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
- H05K9/0016—Gaskets or seals having a spring contact
Abstract
ABSTRACT OF THE DISCLOSURE
An earthing system for apparatus cabinets contain ing electronic equipment is made up from vertical bars, horizontal bars and connection bars between the horizontal bars, all the bars being made from aluminium. At the con-nection points between the bars there are mounted contact-making, spring-biased contact plates. The contact plate is rectangular and provided with contact tongues arranged in rows extending from either face of the plate.
An earthing system for apparatus cabinets contain ing electronic equipment is made up from vertical bars, horizontal bars and connection bars between the horizontal bars, all the bars being made from aluminium. At the con-nection points between the bars there are mounted contact-making, spring-biased contact plates. The contact plate is rectangular and provided with contact tongues arranged in rows extending from either face of the plate.
Description
~L~80~
The invention relates to an earthing system for apparatus cabinets containlng electrica] equipment.
In particular the present invention relates to an earthing system for apparatus cabinets containing electrical equipment, in which there are included bars of a yielding, soft metal for leading off earthed currents.
When electronic equipment is placed in apparatus cabinets~ there is the requirement that earth currents, which can be considerable, shall be led off with an increase in potential which is so small that the sensitive electronic equipment is not damaged by i-t. One type of earth connection used so far, comprises conductors with cable shoes placed between the apparatus and their stand, the shoes being screwed to the apparatus and to the stand. Another type of earth connection ~s a serrated washer placed between the apparatus casing and the plates of the stand. A fastening screw which fastens the apparatus to the stand is taken through this serrated washer. An example of such a contact means is described in US Patent No.
4,077,691.
The present invention includes, inter alia, a further development of the mentioned serrated washer.
According to the present invention there is provided an earthing system for apparatus cabinets containing electrical equipment, in which there are included bars of a yielding, soft metal for leading off earthed currents, including a first type of bars, and a second type of bars and contact-making, spring-biased contact plates at the connection points between the bars, the contact plates being inserted ln an opening in a plate, between the bars to prevent complete pressing together of the contact plate.
In the earthing system there are bars which are ~k ~2~ 02 connec-ted to each other, and together thus have conduc-tive capacity which is so great that earth currents are led away with only a small increase in potential as a result, and spring-biased con-tact plates at the junction points between the bars give a continuous, low transfer resistance between them, although the material of the bars is of soft metal, in this case aluminium, which yields somewhat to compression stress.
The horizontal bars in side by-side apparatus ca-binets are suitably united by connection bars of aluminium with the aid of the same spring- biasedcontact plate as unites the bars in an apparatus cabinet. Suitably the con-tact is rectangular and contact tongues arranged are in rows extending from both side faces of the contact plate. Pre-ferably a small part of the short ends of the contact plate is bent out from one face of the plate to form retaining flanges. Desirably the material in the eontact plate is thinned tin bronze.
An example of an earthing system in accordance with the invention is described in the following with ref-erence to the accompanying drawings, wherein:-Figure 1 illustrates two apparatus eablnets with bars;
Figure 2 illustrates a june-tion poin-t between a vertieal and horizon-tal bar;
Figures 3 and 4 illustrate a spring-biased contaet plate;
Figure 5 illustrates a eontae-t plate inserted in an interseetion point between bars; and ~'~B~ 2 Figure 6 illustrates a connection bar between horizontal bars.
Two apparatus cabinets 1 are illustrated as an example in Figure 1, each containing two vertical bars 2 and two horizontal bars 3. Each vertical bar 2 is bent inwards at right angles at each end, and in each cabinet there is a connection terrninal (not shown) arranged on one of the bent-in parts for connecting an earth conductor. Any of the four bent in parts may be used for connecting the earth conduc-tor.
A contact plate 4 is disposed, as illustrated in Figure 2, a-t an intersection point between one of the verti-cal bars 2, and one of -the horizontal bars 3. The vertical bar 2 has a rectangular cross sec-tion and is at-tached to the side wall of the apparatus cabinet with unillustrat~d fas-tening screws, while the horizontal bar 3, which is carried by a surrounding plate 5, is fastened to the apparatus cabi-ne-t with other fastening screws and pressed against the nar-row edge of the vertical bar.
As illustrated in Figures 3 and 4, the contact plate 4 has a rectangular shape, punched out from sheet metal, and is provi.ded with a plurality of contact tongues, ~our in the example, which are punched out in a row along the centre line of -the plate and alternatingly bent out of the plane of the plate so that -~2a -1.~ 1 3C)2 there is formecl a total of eight contact-rnaking edges 7~ The edges 7 are right-angular and sharp to give good electrical contact against the bars.
A small part of the short ends ~ of the contact plate is somewhat bent out from one face of the plate to form retaining flanges.
5 The material in the contact plate 4 is tin bronze and is tinned, whereby the plate will give durable electrical contact against the aluminium bars without the danger of corrosion needing to be considered. Alternatingly, the contact plate may be made from some other similar rnaterial, e.g. beryllium copper.
As previously mentioned, and as will be more clearly perceived From Figure 5, 10 the contact plate 4 is inserted in an opening in the plate 5 and is there pressed between the vertical bar 2 and the horizontal bar 3. The retaining flanges ~ of the contact plate are urged against the edges in the opening of the piate 5 so that the contact plate will be prevented from falling out during assembly, and the contact tongues 6 are bent such that the thickness of the contact plate 15 measured over the edges 7 is greater than the space between both bars, such that the contact edges will engage against the bars with a continuous pressure after insertion. Since the contact plate 4 is disposed in the plate 5 the contact tongues 6 are preventsd from being completely pressed together.
In the inventive earthing system, there is further included, as will be seen ~rorn 20 Figures l and 6, a connection bar 11 for connecting the horizontal bars 3 in side-by-side apparatus cabinets. As with other bars, the material in the connection bar 11 is aluminium and its cross section is substantially rectangular with two low outstanding edges on one of the wide sides of the bar, so that its cross section has the form of a shallow U. At either of the connection bar, two 25 nodules 12 are pressed into the bar along its centre line in the same direction as that of the edges of the bar. The nodules and the edges of the bar are adapted to give retention of the previously described contact plate 4, there being one contact plate at either end of the bar 11.
The horiznntal bar 3 is provided with a longitudinal groove 13 with a width and 30 depth suited to the reception of the connection bar 11 with }ts accompanying plate 4 in the rnanner illustrated by a curved arrow in Figure 6. The thickness of ~ . ~
~21~
the horizontal bar 3 is adjusted in relation to -the width of the groove 13 so that the contact tongues on the contact plate 4 is prevented from being completely pressed together.
To enable mounting the connection bar 11, the apparatus cabinet 1 is provided with a plurality of unillustrated openings at different heights in the side walls of the cabinets.
The horizontal bars 3 and indirectly the vertical bars 2 also, in two or more cabinets are electrically connected to each other with one or more connection bar 11, whereby occurring earth currents are effectively spread in the bars and are lead away to the earth conductors connected to each cabinet, so that occurring potential rises are limited to a value which is not dangerous.
Electronic apparatus placed in the apparatus cabinet 1 are each provided with an earth conductor intended for connection to one of the horizontal bars 3, preferably with a connection means of the kind described in US Patent No. 4,057,312 and which is intended for fastening by a screw, screwed into the groove 13 of the horizontal bar.
. ~
The invention relates to an earthing system for apparatus cabinets containlng electrica] equipment.
In particular the present invention relates to an earthing system for apparatus cabinets containing electrical equipment, in which there are included bars of a yielding, soft metal for leading off earthed currents.
When electronic equipment is placed in apparatus cabinets~ there is the requirement that earth currents, which can be considerable, shall be led off with an increase in potential which is so small that the sensitive electronic equipment is not damaged by i-t. One type of earth connection used so far, comprises conductors with cable shoes placed between the apparatus and their stand, the shoes being screwed to the apparatus and to the stand. Another type of earth connection ~s a serrated washer placed between the apparatus casing and the plates of the stand. A fastening screw which fastens the apparatus to the stand is taken through this serrated washer. An example of such a contact means is described in US Patent No.
4,077,691.
The present invention includes, inter alia, a further development of the mentioned serrated washer.
According to the present invention there is provided an earthing system for apparatus cabinets containing electrical equipment, in which there are included bars of a yielding, soft metal for leading off earthed currents, including a first type of bars, and a second type of bars and contact-making, spring-biased contact plates at the connection points between the bars, the contact plates being inserted ln an opening in a plate, between the bars to prevent complete pressing together of the contact plate.
In the earthing system there are bars which are ~k ~2~ 02 connec-ted to each other, and together thus have conduc-tive capacity which is so great that earth currents are led away with only a small increase in potential as a result, and spring-biased con-tact plates at the junction points between the bars give a continuous, low transfer resistance between them, although the material of the bars is of soft metal, in this case aluminium, which yields somewhat to compression stress.
The horizontal bars in side by-side apparatus ca-binets are suitably united by connection bars of aluminium with the aid of the same spring- biasedcontact plate as unites the bars in an apparatus cabinet. Suitably the con-tact is rectangular and contact tongues arranged are in rows extending from both side faces of the contact plate. Pre-ferably a small part of the short ends of the contact plate is bent out from one face of the plate to form retaining flanges. Desirably the material in the eontact plate is thinned tin bronze.
An example of an earthing system in accordance with the invention is described in the following with ref-erence to the accompanying drawings, wherein:-Figure 1 illustrates two apparatus eablnets with bars;
Figure 2 illustrates a june-tion poin-t between a vertieal and horizon-tal bar;
Figures 3 and 4 illustrate a spring-biased contaet plate;
Figure 5 illustrates a eontae-t plate inserted in an interseetion point between bars; and ~'~B~ 2 Figure 6 illustrates a connection bar between horizontal bars.
Two apparatus cabinets 1 are illustrated as an example in Figure 1, each containing two vertical bars 2 and two horizontal bars 3. Each vertical bar 2 is bent inwards at right angles at each end, and in each cabinet there is a connection terrninal (not shown) arranged on one of the bent-in parts for connecting an earth conductor. Any of the four bent in parts may be used for connecting the earth conduc-tor.
A contact plate 4 is disposed, as illustrated in Figure 2, a-t an intersection point between one of the verti-cal bars 2, and one of -the horizontal bars 3. The vertical bar 2 has a rectangular cross sec-tion and is at-tached to the side wall of the apparatus cabinet with unillustrat~d fas-tening screws, while the horizontal bar 3, which is carried by a surrounding plate 5, is fastened to the apparatus cabi-ne-t with other fastening screws and pressed against the nar-row edge of the vertical bar.
As illustrated in Figures 3 and 4, the contact plate 4 has a rectangular shape, punched out from sheet metal, and is provi.ded with a plurality of contact tongues, ~our in the example, which are punched out in a row along the centre line of -the plate and alternatingly bent out of the plane of the plate so that -~2a -1.~ 1 3C)2 there is formecl a total of eight contact-rnaking edges 7~ The edges 7 are right-angular and sharp to give good electrical contact against the bars.
A small part of the short ends ~ of the contact plate is somewhat bent out from one face of the plate to form retaining flanges.
5 The material in the contact plate 4 is tin bronze and is tinned, whereby the plate will give durable electrical contact against the aluminium bars without the danger of corrosion needing to be considered. Alternatingly, the contact plate may be made from some other similar rnaterial, e.g. beryllium copper.
As previously mentioned, and as will be more clearly perceived From Figure 5, 10 the contact plate 4 is inserted in an opening in the plate 5 and is there pressed between the vertical bar 2 and the horizontal bar 3. The retaining flanges ~ of the contact plate are urged against the edges in the opening of the piate 5 so that the contact plate will be prevented from falling out during assembly, and the contact tongues 6 are bent such that the thickness of the contact plate 15 measured over the edges 7 is greater than the space between both bars, such that the contact edges will engage against the bars with a continuous pressure after insertion. Since the contact plate 4 is disposed in the plate 5 the contact tongues 6 are preventsd from being completely pressed together.
In the inventive earthing system, there is further included, as will be seen ~rorn 20 Figures l and 6, a connection bar 11 for connecting the horizontal bars 3 in side-by-side apparatus cabinets. As with other bars, the material in the connection bar 11 is aluminium and its cross section is substantially rectangular with two low outstanding edges on one of the wide sides of the bar, so that its cross section has the form of a shallow U. At either of the connection bar, two 25 nodules 12 are pressed into the bar along its centre line in the same direction as that of the edges of the bar. The nodules and the edges of the bar are adapted to give retention of the previously described contact plate 4, there being one contact plate at either end of the bar 11.
The horiznntal bar 3 is provided with a longitudinal groove 13 with a width and 30 depth suited to the reception of the connection bar 11 with }ts accompanying plate 4 in the rnanner illustrated by a curved arrow in Figure 6. The thickness of ~ . ~
~21~
the horizontal bar 3 is adjusted in relation to -the width of the groove 13 so that the contact tongues on the contact plate 4 is prevented from being completely pressed together.
To enable mounting the connection bar 11, the apparatus cabinet 1 is provided with a plurality of unillustrated openings at different heights in the side walls of the cabinets.
The horizontal bars 3 and indirectly the vertical bars 2 also, in two or more cabinets are electrically connected to each other with one or more connection bar 11, whereby occurring earth currents are effectively spread in the bars and are lead away to the earth conductors connected to each cabinet, so that occurring potential rises are limited to a value which is not dangerous.
Electronic apparatus placed in the apparatus cabinet 1 are each provided with an earth conductor intended for connection to one of the horizontal bars 3, preferably with a connection means of the kind described in US Patent No. 4,057,312 and which is intended for fastening by a screw, screwed into the groove 13 of the horizontal bar.
. ~
Claims (6)
1. An earthing system for apparatus cabinets con-taining electrical equipment, in which there are included bars of a yielding, soft metal, for leading off earthed cur-rents, including a first type of bars, and a second type of bars and contact-making, spring-biased contact plates at the connection points between the bars, the contact plates being inserted in an opening in a plate, between the bars to pre-vent complete pressing together of the contact plate.
2. An earthing system as claimed in claim 1, in-cluding an aluminium bar connecting the horizontal bars in side-by-side apparatus cabinets and the said contact-making, spring-biased contact plates in the connection points bet-ween the bars.
3. An earthing system as claimed in claim 2, in which the contact plate is rectangular and contact tongues arranged are in rows extending from both side faces of the contact plate.
4. An earthing system as claimed in claim 3, in which a small part of the short ends of the contact plate is bent out from one face of the plate to form retaining flanges.
5. An earthing system as claimed in claim 3, in which the material in the contact plate is tinned tin bronze.
6. An earthing system as claimed in claim 1, 2 or 3, in which the soft metal is aluminium.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8502976-7 | 1985-06-14 | ||
| SE8502976A SE448331B (en) | 1985-06-14 | 1985-06-14 | EARTHING OF CABINETS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1280802C true CA1280802C (en) | 1991-02-26 |
Family
ID=20360587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000511009A Expired - Lifetime CA1280802C (en) | 1985-06-14 | 1986-06-06 | Earthing system for an apparatus cabinet |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US4781603A (en) |
| EP (1) | EP0228405B1 (en) |
| JP (1) | JP2597561B2 (en) |
| KR (1) | KR910004011B1 (en) |
| AU (1) | AU590290B2 (en) |
| BR (1) | BR8606722A (en) |
| CA (1) | CA1280802C (en) |
| DE (1) | DE3663099D1 (en) |
| DK (1) | DK163547C (en) |
| DZ (1) | DZ939A1 (en) |
| EG (1) | EG19801A (en) |
| ES (1) | ES296718Y (en) |
| FI (1) | FI75692C (en) |
| GR (1) | GR861358B (en) |
| IE (1) | IE57363B1 (en) |
| MA (1) | MA20709A1 (en) |
| MX (1) | MX168026B (en) |
| NZ (1) | NZ216127A (en) |
| PT (2) | PT82758A (en) |
| SE (1) | SE448331B (en) |
| TN (1) | TNSN86087A1 (en) |
| TR (1) | TR23124A (en) |
| WO (1) | WO1986007497A1 (en) |
| YU (1) | YU47041B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530924C2 (en) * | 1995-08-23 | 2001-11-08 | Huber Signalbau Ag | Device for grounding a modular housing unit |
| DE19809224A1 (en) * | 1998-03-04 | 1999-09-09 | Bosch Siemens Hausgeraete | Home appliance |
| DE19818285C2 (en) * | 1998-04-23 | 2001-10-31 | Kathrein Werke Kg | Contact strips for electrical contacting and / or for achieving a connection that is sealed against high-frequency electromagnetic waves and the associated shielding arrangement |
| US6444900B1 (en) | 1999-05-19 | 2002-09-03 | Fci Americas Technology, Inc. | Electromagnetic interference shielding gasket |
| US6405058B2 (en) * | 2000-05-16 | 2002-06-11 | Idigi Labs, Llc | Wireless high-speed internet access system allowing multiple radio base stations in close confinement |
| US6839571B2 (en) * | 2000-05-19 | 2005-01-04 | Xg Technology, Llc | RF shielding design for wireless high-speed internet access system |
| US6997722B2 (en) * | 2003-03-25 | 2006-02-14 | Elma Electronic Inc. | ESD system for grounding electronics within an enclosure |
| FR2977733B1 (en) * | 2011-07-05 | 2018-07-27 | European Aeronautic Defence And Space Company Eads France | ASSEMBLED STRUCTURE WITH ELECTRIC CONTINUITY |
| DE102012219963A1 (en) * | 2012-10-31 | 2014-04-30 | A. Raymond Et Cie | Device for ensuring an electrical connection between two parts to be joined together |
| CN103928775B (en) * | 2014-03-31 | 2016-10-19 | 国家电网公司 | The substation secondary air switch little ground wire of enclosed type ground connection |
| DE102016117499A1 (en) * | 2016-09-16 | 2018-03-22 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Frame for a brake control device of a rail-bound vehicle |
| DE102018112013A1 (en) * | 2018-05-18 | 2019-11-21 | Maschinenfabrik Reinhausen Gmbh | CONTACT SYSTEM FOR A LOAD TERMINAL SWITCH |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756369A (en) * | 1953-01-19 | 1956-07-24 | Bailey Meter Co | Panel support structures |
| FR2188910A5 (en) * | 1972-06-09 | 1974-01-18 | Ducros Emile | |
| DE2247005B2 (en) * | 1972-09-25 | 1976-03-18 | Siemens AG, 1000 Berlin und 8000 München | HOUSING FOR ELECTRICAL EQUIPMENT, SHIELDED AGAINST HIGH FREQUENCY ELECTROMAGNETIC EMISSIONS |
| DE2250639B2 (en) * | 1972-10-16 | 1976-03-18 | Siemens AG, 1000 Berlin und 8000 München | ELECTROMAGNETIC SEALING OF CONNECTING JOINTS FOR SCREWED SHIELDING ELEMENTS |
| US4082410A (en) * | 1976-05-06 | 1978-04-04 | Amerace Corporation | Electrical connectors and contact assemblies therefor |
| GB2054777B (en) * | 1979-07-05 | 1983-01-26 | Lucas Industries Ltd | Servo boosters for vehicle braking systems |
| DE3246085A1 (en) * | 1982-12-13 | 1984-06-14 | Alfred Teves Gmbh, 6000 Frankfurt | VACUUM-POWERED BRAKE-AMPLIFIER |
| US4572921A (en) * | 1984-07-30 | 1986-02-25 | Instrument Specialties Co., Inc. | Electromagnetic shielding device |
| DE3445118A1 (en) * | 1984-12-11 | 1986-06-12 | Alfred Teves Gmbh, 6000 Frankfurt | Vacuum brake booster |
| US4593961A (en) * | 1984-12-20 | 1986-06-10 | Amp Incorporated | Electrical compression connector |
-
1985
- 1985-06-14 SE SE8502976A patent/SE448331B/en not_active IP Right Cessation
-
1986
- 1986-05-12 NZ NZ216127A patent/NZ216127A/en unknown
- 1986-05-16 BR BR8606722A patent/BR8606722A/en not_active IP Right Cessation
- 1986-05-16 AU AU59611/86A patent/AU590290B2/en not_active Ceased
- 1986-05-16 EP EP86903653A patent/EP0228405B1/en not_active Expired
- 1986-05-16 JP JP61503169A patent/JP2597561B2/en not_active Expired - Lifetime
- 1986-05-16 DE DE8686903653T patent/DE3663099D1/en not_active Expired
- 1986-05-16 KR KR1019870700122A patent/KR910004011B1/en not_active IP Right Cessation
- 1986-05-16 US US07/030,863 patent/US4781603A/en not_active Expired - Lifetime
- 1986-05-16 WO PCT/SE1986/000231 patent/WO1986007497A1/en active IP Right Grant
- 1986-05-23 MX MX002585A patent/MX168026B/en unknown
- 1986-05-26 GR GR861358A patent/GR861358B/en unknown
- 1986-05-26 EG EG31286A patent/EG19801A/en active
- 1986-06-06 CA CA000511009A patent/CA1280802C/en not_active Expired - Lifetime
- 1986-06-09 YU YU98486A patent/YU47041B/en unknown
- 1986-06-10 IE IE1538/86A patent/IE57363B1/en not_active IP Right Cessation
- 1986-06-11 DZ DZ860120A patent/DZ939A1/en active
- 1986-06-12 PT PT82758A patent/PT82758A/en unknown
- 1986-06-12 ES ES1986296718U patent/ES296718Y/en not_active Expired
- 1986-06-12 MA MA20936A patent/MA20709A1/en unknown
- 1986-06-12 TN TNTNSN86087A patent/TNSN86087A1/en unknown
- 1986-06-13 TR TR293/86A patent/TR23124A/en unknown
-
1987
- 1987-01-29 FI FI870382A patent/FI75692C/en not_active IP Right Cessation
- 1987-02-13 DK DK073187A patent/DK163547C/en not_active IP Right Cessation
-
1992
- 1992-05-21 PT PT8506U patent/PT8506U/en not_active IP Right Cessation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1280802C (en) | Earthing system for an apparatus cabinet | |
| US5228872A (en) | Shielded IDC type modular jack adapter | |
| US4917615A (en) | Ground bracket | |
| US4029377A (en) | Push-on bus bar | |
| EP0220884A2 (en) | Insulation displacement connector terminal block | |
| US5032092A (en) | Power distribution block | |
| US4133595A (en) | Double ended receptacle | |
| US5062801A (en) | Function unit in which circuit boards are mounted on a center plane by way of distribution boards | |
| GB2265768A (en) | Electrical connector | |
| US5509812A (en) | Cable tap assembly | |
| JPS59194373A (en) | Overvoltage protecting device attached to connecting wire distributor | |
| US4099826A (en) | Feed-through terminal block | |
| US4993971A (en) | EMI resistant electrical connector | |
| US4647121A (en) | Distributor strip comprising a plurality of double terminal posts allowing non-stripped connection of electrical conductors | |
| CA1231761A (en) | Transient protection in insulating displacement connector | |
| US4610493A (en) | Electrical connector block | |
| US4580864A (en) | Modular connecting blocks | |
| US3458768A (en) | Electric meter-mounting and fuse-holder assembly | |
| US4533195A (en) | Pre-wired modular connecting blocks | |
| US4429940A (en) | Tap connector | |
| CA2133035A1 (en) | Improved terminal block for small appliances | |
| US4332433A (en) | Termination of flat flexible cables | |
| CA1104687A (en) | Modular connecting block for communication and electronics | |
| CA1067171A (en) | Modular connecting block | |
| GB2047481A (en) | Terminal strip for a circuit board and housing for receiving same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |