Abstract: An electric plug includes a plug housing which is formed onto one end of a power cord, the power cord includes a hot line, a neutral line and a ground line. The electric plug includes a lighted rocker switch which provides both circuit breaking and power switching capabilities, the rocker switch being electrically connected to the hot and neutral lines of the power cord. First, second and third conductive terminals project orthogonally out from the plug housing. The first and second conductive terminals are electrically connected to the rocker switch and the third conductive terminal is electrically connected to the ground line. In use, the lighted rocker switch regulates the flow of between the conductive terminals and the power cord in response to overcurrent conditions in the electric plug and manual switching of the power state of the lighted rocker switch.

Abstract: A jumper assembly for a DSX system is disclosed herein. The jumper assembly includes a messenger wire for electrically connecting tracer lamp circuits corresponding to two cross-connected DSX modules. The jumper assembly also includes tracer lamp devices carried with the messenger wire.

Abstract: A tool for determining the continuity of an electrical circuit for an internal combustion engine includes a single body member with male connectors projecting from the opposite ends and a lead wire having a 90° connection boot at one end and an inline connection boot at the opposite end is useful for attachment to the heads of spark plugs regardless of their orientation in an engine block.

Abstract: A transparent base supports two or more socket boards side-by-side. Binding posts are arrayed on the longer side of one rectangular socket board. Turning the assembly over allows the user to see how the sockets are connected to the busbars on the backsides of the side-by-side socket boards.

Abstract: A sealed electrical assembly that includes a housing having an opening at an end. An electrical device is positioned in the housing. The electrical device includes a lead that extends out of the open end. A cover is positioned within the opening. The cover includes a plate portion and a tab portion spaced apart from the plate portion. The tab portion extends into a cutout in the housing that is located between the plate portion and the housing end to position the cover with respect to the housing. A sealant is disposed around a perimeter of the plate portion to provide a seal between the cover and the housing. A portion of the sealant is disposed in a space between the cutout and the plate portion to prevent leakage through the cutout.

Abstract: An edge connector for receiving a first circuit board, circuit card, etc. comprises a housing having a circuit board receiving groove. A plurality of electrical contacts are arranged in the board receiving groove. An ejector member is provided for ejecting the board from the housing, the ejector member is translucent or transparent. A light emitter is optically coupled to the ejector member, so that when the light emitter is lit, the light from the light emitter is transmitted through the translucent or transparent ejector member to provide a visual indication which can be seen by the person inserting the circuit board into the connector.

Abstract: An adapter with a fuse and an indicator and capable of being used as a plug is disclosed. The adapter mainly includes an upper cover and a lower cover. Two parallel male terminals and two parallel female terminals are installed in the upper cover and lower cover. An indicator is connected to the two parallel female terminals. By controlling the contact of the indicator with the female terminals, the user can know whether the electric device is working in normal condition. Other than arranging in a fixing way, the two male terminals are rotatable by connecting them to a rotary unit. Besides, connecting pieces are used to connect the male terminals and female terminals. Two connecting pieces are connected through a fuse. By the action of the fuse, as the current of the fuse is overloaded, the fuse will melt and break so that the connected electric devices are protected.

Abstract: According to the present invention, provided is a card connector device in which supporting positions of the individual connection terminals with respect to a header are formed on a straight line without being shifted forward and backward and rigidity of the respective supporting portions of the individual connection terminals increases as the length to the contact portion increases, so that the contact pressure of the respective connection terminals is uniform and the miniaturization of the whole connector device can be accomplished.

Abstract: An electrical connector for interconnecting a display to a printed circuit board. One application of the invention provides connection between a liquid crystal display (“LCD”) and a circuit board. The connector is capable of serving a dual function as both a lightguide that disperses light for the display, and as an electrical connector for interconnection of the display with the circuit board. A leg member is mounted on the connector, and the leg member includes a row of contact feet for electrical communication. The connector may include a plurality of spaced apart U-shaped strip members mounted in parallel upon a leg member, with contact feet that extend upwardly to resiliently mate with contact pads of the display and downwardly to resiliently mate with contact pads of a printed circuit board.

Abstract: An AC generator for a vehicle has a cover and a connector to be connected with an end connector from a vehicle mounted circuit. The connector and the end connector have a lock mechanism using a lock portion and a lever. The cover has an opening for providing a visual accessibility on the lock mechanism. The opening allows to check the lock portion on the connector after the cover is installed and the lever on the end connector even after the end connector is connected with the connector.

Abstract: A light socket cover system that is used by persons decorating with lights, including strings of lights, that provides an electrically nonconductive cover for providing a moisture tight covering for one or more empty light sockets and/or one or more light sockets with light bulbs installed therein. The light socket cover system includes a two-part sealable housing and in some options a socket filling structure to prevent access into the socket by fingers, water and the like.

Abstract: A connecting device applicable to a battery terminal can display the electrical condition, such as the voltage of power and the condition of the fuses of each line. The connecting device includes a main body having a clamp at one end for fixing to the battery terminal, and the other end for carrying a display unit and connecting cables of appliances. The display unit makes the connecting device displayable with electrical conditions directly without the need of using other testing devices.

Abstract: An electrical connector is disclosed with electrically contacting contact pins or contact sockets, such as plugs or couplings. The electrical connector exhibits on one side a receiver part. A light-guiding body made of a light-transmitting material with at least one illuminating body is inserted into the receiver part. Feed lines for contact pins are led through the receiver part. The light-guiding body is furnished with at least two arms. Reflection surfaces are furnished for deflecting light coming from an illuminating body into the two arms. The reflection surfaces deflect light into the respective arm and are capable of deflecting the light mainly in axial direction within the respective arm at an angle of from between about 40 to 140 degrees relative to the main radiation direction of the arm. The light-guiding or light-conducting body exhibits a recess below the tip or edge and the illuminating body is disposed in the recess.

Abstract: An electrical connector comprises a tubular body (1) with a hollow section (2) having a mouth (3), a female contact element (6) with a pair of contact pieces (7) extending in the hollow section (2) forming a throat portion (8) near the mouth (3), and a window (5) provided at a position corresponding to said throat portion (8).

Abstract: An electrical connector for a PGA package is provided for reduction of the height thereof. The electrical connector includes a base in which a plurality of terminal receiving cavities are adapted for receiving pins of the PGA package. A plurality of terminals are mounted within each of the terminal receiving cavities, and a cover is slidably mounted on the base housing. The cover includes an array of through holes adapted for insertion of the pins. The cover includes both sheet metal and insulative components.

Abstract: A high density distribution panel is disclosed having a plurality of drawers on which components are mounted. The drawers provide support for the components and are pulled out and allowed to be guided downward with the assistance of gravity to come to rest against appropriate support and also to provide front access of the components mounted on the drawers. The appropriate support accommodates the use of downwardly initiated press action of sufficient force to provide for good electrical connections of associated electrical conductors, which includes optical and electrical cables.

Abstract: An electrical plug incorporates a light beam between the prongs of the plug. The light beam is forwardly directed such that the plug can illuminate a socket where the plug is to be inserted. The plug body includes a circuit board having a light, resistor, battery and switch. A first type of switch that is used includes a push button attached to a spring and contact pads mounted on the circuit board, wherein when the button is pressed the spring electrically connects contact pads within the circuit thus closing the circuit and activating the light. A second type of switch that is used incorporates contact pads and a flexible cover having a pair of electrically conductive leaves hingedly attached to its underside. When an exterior surface above the cover is pressed the leaves move upward and electrically connect contact pads within the circuit thereby closing the circuit and activating the light.

Abstract: An electrical connector for a PGA package is provided for reduction of the height thereof. An electrical connector for a PGA package comprises a housing board in which a plurality of contact holes adapted for receiving pins of the PGA package formed in grid array fashion, a plurality of terminals mounted within each of the contact holes, and a cover in which through holes adapted for insertion of the pins are formed in grid array fashion, and slidably provided on the upper side of the housing board. Each of the terminals is located within contact holes, and formed by independently arranging respective spring contact adapted for electrical engagement with the pin and engaging piece engaged under pressure from a bottom surface of the housing board in parallel.

Abstract: A double lock connector 1 having spacers 3,4 for engaging terminals is provided with detecting pin inserting portions 16,17 continuing from the front end of a connector housing 2 to the spacers 3,4. The detecting pin inserting portions are of slits. The detecting pin inserting portions 16,17 communicate with respective accommodating recesses 13,14 for base plate portions 9,10 of the spacers 3,4. Detecting pins are arranged opposite to the front end of the connector housing 2, and the detecting pins are inserted into the detecting pin inserting portions and abut against the respective spacers 3,4. The detecting pins are set inside a continuity testing portion of a terminal continuity testing member, and the continuity testing portion is moved toward the front end of the double lock connector 1. Thus, the presence of the spacers is securely detected.

Abstract: In an opening and closing structure for a connector housing cover in an information processing apparatus, a viewing window is formed at the upper surface of a housing recess that houses a connector in the main unit of a information processing apparatus, and a connector housing cover is mounted to cover the housing recess that houses the connector, so that when the connector housing cover is opened, the upper surface viewing window is opened, enabling viewing of a connector cable while it is being connected.

Abstract: The present invention relates to an illuminated connector that may be illuminated from a light source that is not immediately adjacent to the connector. The connector is illuminated by projecting a focused beam of light onto a translucent portion of the connector. The focused beam of light may then be redirected so as to illuminate selected sections of the connector in order to indicate diagnostic information or identify the source or model of the electronic device in which the connector is placed.

Abstract: An electronic device adapted to be coupled to an information transfer system by means of a conductor including a standard connector having a translucent or transparent body insertable into a receptacle defined by the electronic device, the device including a housing, a substrate carrying electronic components, a light source mounted on the substrate and connected to components on the substrate, the light source being energizable in response to electrical signals generated by said components, the signals being indicative of the status and/or activity of the device, and a light guide extending between the light source and the receptacle for transmitting light from the light source to the receptacle, the light transmitted from the source to the receptacle illuminating the connector body thereby providing an indication of the status and/or activity of the electronic device.

Abstract: A card connector includes a connector housing formed by supporting a basal end of a cover on a basal end of a base through a pin such that the cover can open and close with respect to the base. A card insertion port is formed in a free end of the cover, and an IC card can be inserted into the cover through the card insertion port. Then, the cover holding the IC card can be closed with respect to the base, so that external terminals of the IC cards are brought into contact, under pressure, with contacts formed on the base. The card connector also includes a lock bar extending in parallel to the card receiving port and resiliently held, in a locking direction, on the other end portion of the base such that the lock bar can be rotated in a locking direction and in an unlocking direction, the lock bar being brought into locking and unlocking relation with the free end of the cover to realize a locking and an unlocking state.

Abstract: A modular jack assembly with an indicator comprises a housing (19) made of an insulative material and consisting of two tiers, each tier having at least one through-hole (15) and at least one opening (18a or 18b) for receiving a mating connector. The modular assembly further comprises at least one light transmission means (11D) for transmitting light, which is provided in the through-hole and has a light receiving member (13) at one end for receiving light from a corresponding light source (6a OR 6b) mounted on a board outside of the modular jack assembly and disposed in a line along a rear wall of the housing and an indicator member at the other end for displaying the light to the outside of the modular jack assembly. The transmission means provided in the through-hole of an upper tier extends upwardly from the light receiving member along the rear wall, bent at right angles into an upper wall of the upper tier and then bent diagonally along the upper wall of the upper tier.

Abstract: An audio jack includes a casing 6 defining an interior space 620. Two sets of slots are formed on a top face 60 of the casing 6 in communication with the interior space 620 for receiving and retaining conductive terminal members therein, including two stationary members 3, 4 and two associated movable members 1, 2. The movable members 1, 2 engage with the stationary members 3, 4 and are selectively disengageable therefrom. The conductive terminal members 1, 2 3 and 4 are pre-compressed before being fit into the slots and the reactive spring force thereof retains the terminal members 1, 2, 3 and 4 in position inside the slots 601, 602, 603 and 604. A plug receptacle 7 is formed on the casing member 6 for reception of a plug that is inserted into the interior space 620. When the plug is inserted into the interior space 620 physical/electrical engagements is established with the movable members 1, 2 and the movable members 1, 2 are force to disengage from the stationary members 3 and 4.

Abstract: A flexible circuit connector includes a housing defining an interior space for receiving a flexible circuit. Conductive contacts are retained in the housing, each having a concave portion extending into the interior space for electrically engaging the flexible circuit. An actuator pivotally attached to the housing for being moveable between an open position where an opening is formed between the actuator and the housing for insertion of the flexible circuit into the housing and a closed position where the actuator engages and thus securely retains the circuit board in the housing. The contacts are arranged to have the concave portions thereof substantially aligned with a rotational axis of the actuator for reducing coupling force required for moving the actuator from the open position to the closed position. At least one inspection window is defined in the housing in communication with the interior space for visual inspection of the flexible circuit received in the housing.

Abstract: A structure for securing electrical contact between connecting sections of a wire harness includes a wall with a hole therethrough and a projection having a hollow. The projection extends from a rim of the hole and the hollow is in communication therewith. There is a cover which closes the end of the projection remote from the rim. There is a plurality of connecting sections on one or more wire harnesses and an insulative cap is placed thereover. The hollow is adapted to receive the cap and connection sections and an opening is provided in the cover. This permits introduction of a resilient cap, which will secure the connecting sections within the hollow and allows otherwise trapped air to escape readily through the opening. This simplifies both production and assembly.

Abstract: An electronic device adapted to be coupled to an information transfer system by means of a conductor including a standard connector having a translucent or transparent body insertable into a receptacle defined by the electronic device, the device including a housing, a substrate carrying electronic components, a light source mounted on the substrate and connected to components on the substrate, the light source being energizable in response to electrical signals generated by said components, the signals being indicative of the status and/or activity of the device, and a light guide extending between the light source and the receptacle for transmitting light from the light source to the receptacle, the light transmitted from the source to the receptacle illuminating the connector body thereby providing an indication of the status and/or activity of the electronic device.

Abstract: An electronic component for mounting on a PCB by a reflow soldering method has a conductor element mounted on an insulating component body, the conductor element having a contact region exposed on the exterior of the component body to connect the component to the PCB. In order to increase the numerical mounting density of such electronic components on the PCB a window is provided in the body of the component, which allows IR radiation to pass through the component body to the contact region of the conductor element.

Abstract: An electrical power supply connector is disclosed for use with a vehicle having an electrical distribution system including a cigarette lighter receptacle, the power supply connector comprising an opaque elongated body with a longitudinal axis extending the length of the body and an exterior surface having a perimeter encircling the longitudinal axis. Terminals are positioned near the first end of the body and are adapted to be inserted into the receptacle to make electrical connection with the electrical distribution system. An electrical light source is supported within the connector. Circuitry within the connector is adapted to electrically connect the light source to the electrical distribution system to energize the light source when the first end of the connector is inserted into the receptacle. A lens encircling on the surface of the body extending directs light from the light source exteriorly of the body.

Abstract: A jack has a side opening that allows light from a light emitter that is mounted adjacent to the side opening to enter the jack's cavity and emerge from the jack's front opening that is used for insertion of a plug. In one embodiment, when a plug is inserted into the jack, a transparent portion of the plug allows the light to emerge from a posterior end of the plug to provide a visible indication of the state of the connection between the jack and the plug. Emergence of light from the jack's front opening results in saving space on a jack panel because panel space conventionally used for a LED is no longer needed. The side opening is located adjacent to the jack's bottom surface that is adjacent to a printed circuit board (PCB) on which the jack is mounted. In one embodiment, the light emitter is mounted on the PCB near the side opening between the jack's bottom surface and the PCB's top surface.

Abstract: A power strip includes a casing on which at least one outlet is formed for the receiving of an external plug and a power cable extending from inside the casing to a terminal connector, such as a plug for connecting to an electric main. The casing is particularly provided with a window opening to expose the inside structure of the power strip with a transparent insulation cover removably mounted thereon to show the inside structure of the power strip.

Abstract: A connector is shown for an electrical cable which includes a connector body having oppositely disposed outer walls connected by a pair of oppositely arranged end walls. The outer walls and end walls terminate in a rear wall which together define an enclosure including an internal chamber for receiving an electrical connector element. The oppositely disposed outer walls are provided with bevelled front surfaces which extend from a point co-planar with the remaining outer wall surface inwardly with respect to the internal chamber opening, thereby providing greater visibility of any electrical connector element located within the internal chamber to prevent mis-alignment of connector elements during connection operations.

Abstract: An electrical connector bar and assembly housing which includes a plurality of support terminal bars mounted in a single housing unit which can be anchored within a wire trench provided at a convenient access location within the building floor structure to permit modifications to be made in the wiring supports in the building at a selected convenient access location within the trench.

Abstract: A board-mountable electrical connector (100) having a housing (108) with two or more plug portions (104,106) each having two rows of contacts (114,116) therein extending from the mating face (102) to solder tails (136,138) along the connector's board-mounting face (140). An inspection aperture (144) allows visual inspection of the solder terminations of the solder tails of the contacts (116) of the inner rows to pads of a circuit board. Insert (150) is insertable into inspection aperture (144) following soldering and inspection, and is latchable in place to the housing in a manner permitting delatching and removal, if desired.

Abstract: An electrical connector which includes a built-in indicator light arrangement is arranged such that the light source is positioned away from the front face of the connector through which the light is to be viewed, the light being directed from the light source to the front face by a light guide, which can either be formed by making the connector itself of a transparent material and including light reflecting or refracting surfaces as needed to direct the light to the front face of the connector, or by including a discrete waveguide placed in a passage which extends from the indicator light-containing cavity to the front face of the connector, and which includes appropriate light reflecting or refracting surfaces.

Abstract: A connector for connecting a cable including a socket housing having a terminals screw for connecting the cable, a substrate pin for electric connection with the terminal screw, and a pin header on which the socket housing can be mounted to cover the screw. With this connector, no dedicated tool or dedicated machine is required when connecting a cable to the socket housing, which insures improved workability as well as the safety of the connector and realizes size reduction.

Abstract: An electrical connector (10) having a housing (12) with two or more plug-receiving cavities (14,16) each having two rows of contacts (20,22) therein extending from the mating face (12) to solder tails (26,28) along the connector's board-mounting face (24). An inspection aperture (30) allows visual inspection of the solder terminations of the solder tails (28) of the inner contact rows (22) to pads of circuit board. An integral ESD shell (32) traverses the mating face and includes plug-receiving slots (38,40) and an inspection slot (42) aligned with the housing apertures (14,16,30), and narrow strips (44) between the slots are supported by orthogonal shell wall sections (48) protecting the narrow strips (44) from damage during handling and assembly.

Abstract: An IC socket for mounting an IC package on a printed wiring board includes a socket body and pin terminals. The socket body has a mount portion for the IC package. The mount portion has a flat bottom wall. The pin terminals are arranged in the bottom wall at predetermined intervals lengthwise and widthwise. Each pin terminal has a contact portion, on the upper surface of the mount portion, which is brought into contact with a corresponding terminal of the IC package mounted on the mount portion, and a connecting portion, on the lower surface of the mount portion, which is connected to a corresponding pattern on the printed wiring board. A press member having elasticity which makes the press member press an upper surface of the IC package mounted on the socket body to press each terminal of the IC package against the contact portion of a corresponding pin terminal of the socket body is arranged on the socket body.

Abstract: A modular jack for a 10BASE-T standard Ethernet-type local area network connection to a printed circuit board edge includes a body portion, a plug receptacle, a PC board mounting apparatus, and a cavity for receiving a LED to indicate the status of the LAN connection. The LED preferably is embedded in the front face of the body portion of the jack. Alternatively, the body portion of the jack may be molded from a transparent or a translucent resin, and the cavity may be formed in the underside of the body portion, whereby the LED may be mounted on the PC board and the jack inserted on the PC board over the LED, with the body portion of the jack conducting light from the LED to the front face of the jask.

Abstract: A connector in which double engagement can be easily and positively verified even if an engagement pin has been damaged while being inserted into an engagement pin hole in a housing of the connector. The connector has an insertion engaging device provided with engaging pins for double engagement of a plurality of female terminals accommodated in terminal accommodating chambers which are longitudinally and laterally arranged in a connector housing. The insertion engaging device is provided on one outer peripheral surface of the connector housing, and the connector housing includes ascertainment holes penetrating through positions where fore ends of the engagement pins normally inserted into the engagement pin insertion holes are placed so that the presence of the fore ends of the engagement pins inserted into the engagement pin holes can be visually ascertained.

Abstract: Light socket improvements include a thermal conductor which removes heat by inducing a flow of air within the socket and/or which acts as heat sink that more efficiently transfers heat to the socket support thereby enabling use of higher wattage light bulbs. The conductor may, if desired, also function as a control signal input. Other improvements simplify wiring procedures and assure safety by providing a lockable internal chamber for power terminals within the socket housing. Some embodiments of the invention include electronic control circuits and enable selection of any of a variety of modes of controlling the light sockets by touch or by other forms of signal input including remote control and optional joint or independent control of individual sockets in a light fixture which has a plurality of sockets.

Abstract: This invention aims to provide a female terminal metal fixture for a connector, in which a contacting pressure on an elastic contact piece can be precisely and easily measured. In the fixture, a box like fitting portion 2 is provided in its interior with an elastic contact piece 5. The piece 5 has a contact area 6 adapted to elastically contact with a male terminal metal fixture. The contact area 6 electrically contacts with the male fixture when it is inserted into the fitting portion 2. The portion 2 is provided with an inspection aperture 8 in its upper wall 7 above the contact area 6. Measurement of a contacting force on the elastic contact piece 6 and observation of a surface condition of the piece can be effected through the inspection aperture 8.

Abstract: An electrical connector (10) including a housing (12) with a pair of housing sections (14) each containing a terminal (40) rotatable therewithin upon actuation to terminate an end of a wire (26,28) inserted into an aperture (22,24) thereof. For small diameter wires, a wiring indicator (60) of transparent material is affixed to the opposed side of the housing and includes a chamber (70) for each wire to be extended therethrough for termination, thus enabling visual verification that a wire end has been fully inserted. A wire retainer (90,100) is used to prevent inadvertent backout after full wire insertion but before termination. Wire retainer (100) can be a clip mountable outside the housing, and wire retainer (90) can be contained in the wiring indicator includes a spring arm (92) biasing against the wire free end (52) upon full insertion.

Abstract: An extension cord connector construction wherein the connector components, including a visual power indicator, are encapsulated within a solid, light-permeable body to form the connector. By suspending the components in this manner, the lamp can be seen from a wide range of viewing angles. Furthermore, the body of the connector acts as a shock absorber or cushion which limits the damaging effects of mechanical stresses and improves the structural integrity of the connections within the connector.

Abstract: A contact element of a plug-in connector in which the peeled portions of electric wires are inserted includes a substantially U-shaped conductive plate and a leaf-like spring member. The conductive plate is formed by bending and constituted by a proximal end portion having a plurality of electric wire insertion holes and long and short bent pieces bent at two edges of said proximal end portion. The leaf-like spring member has one end side caught by the long bent piece of the conductive plate and a plurality of strip-like tongue pieces that are to be engaged with the inner side of said short bent piece and extending obliquely from the other end side thereof toward the long bent piece.

Abstract: A safety construction of receptacle plugs mainly comprises a housing and an insertion piece; the housing having an inspection port provided on its top, and a cover plate that can be placed into the housing from the rear side of the housing and slides in and out to close the inspection port; the insertion piece having a plurality of troughs arranged thereon that can accommodate two sets of copper conductor plates and two fuses, each set of copper conductor plates including two separated parts connected to each other by way of a fuse that constitutes a safety device. Under the cover plate there is an overhanging separator formed to keep fuses apart to obtain a safety effect.

Abstract: A new and improved electrical receptacle comprising a light permeable housing, electrical outlets mounted in the housing, and illuminating means disposed interiorly of the housing. In an alternatively preferred arrangement, a stand pivotally attached to the receptacle housing is adapted to elevate the receptacle thereby affording protection against short circuits due to excessive moisture on the floor. In yet another alternatively preferred arrangement, a second pivotal attachment on the housing is effective to prevent the inadvertent disconnection of electrical cords plugged into the housing.

Abstract: An electrical power extension cord having an illuminated connecting body at an end of the extension cord is described. The end is illuminated if it is connected to an active power source with or without a functioning ground conductor, depending upon the electrical configuration within the body. The body is formed from a translucent material having the illumination apparatus embedded within such that the illuminated body is visible from all directions.

Abstract: A dielectric housing (11) of an electrical connector (10) comprises a contact-receiving passageway (13) in which an electrical contact (25') is secured by a resilient housing lance (14). A locking member (20, 25) is movable along the passageway (13) and has a projection (21) that is positioned in a space (15) between the passageway wall (13a) and the housing lance (14) to prevent the housing lance from moving outwardly. A window (30, 31, 32, 33) is in the housing (11) and exposes a part (20b, 25b) of the locking member (20, 25) when the projection (21) is positioned in the space (15) thereby indicating the securing of the contact in the contact-receiving passageway.