Abstract: Circuits, methods, and apparatus that may provide protection from exposed wires or terminals when a power plug is damaged or destroyed. One example may provide a plug having an inner cover that shields power carrying wires or terminals when an outer shell is damaged or destroyed. The inner cover may include openings to receive conductors, where the openings may lead to terminals or wires that connect to plug prongs. The received conductors may attach directly or indirectly to an outer shell, and further to a power cord, circuitry, or other electronic components. When the outer shell is damaged or destroyed, the conductors may pull out of the openings in the inner cover, thus disconnecting from the wires or terminals. The wires or terminals may thus remain protected by the inner shell, avoiding exposure to contact by users or inadvertent conductors.

Abstract: Known pumping devices have a connection lid, a connection cap slipped over the connection lid, a hollow chamber formed between the connection lid and the connection cap, and electrical connections that extend through the connection cap into the hollow chamber. It is disadvantageous that when fuels containing water are being pumped, such as ethanol, corrosion can occur at the electrical connections and at the uninsulated cable segments that are exposed to fuel near the electrical connections, for instance at the electrical coils or flexible cables of the carbon brushes, and in the final analysis this leads to an interruption in the electrical contact and thus to failure of the pumping device. In the electrical device of the invention, corrosion of the electrical connections and of the electrical components adjoining them upstream and downstream is avoided entirely or at least greatly diminished. According to the invention, the electrical connections are each provided in separate chambers of the hollow chamber.

Abstract: There is provided a sheath for a flexible electrical contact that is incorporated within a sound reproduction device. The sheath preferably includes at least one opening at each end of the sheath to enable the sheath to be worn over the electrical contact with each opening having a thickened periphery ring. The main body of the sheath may be either a cylindrical shape or a conical shape. It is advantageous that the sheath damps a resonance vibration of the flexible electrical contact during operation of the sound reproduction device when the sheath is worn over the flexible electrical contact. The flexible electrical contact may be incorporated within a battery compartment of the sound reproduction device. A corresponding method of using the sheath is also disclosed.

Abstract: An electrical device includes a conductive member and a voltage-resistant connector to be mounted to the metal enclosure. The conductive member such as a metal enclosure, includes a pair of clasping portions separated from each other. Each of the pair of clasping portions includes a pair of fixing arms. The voltage-resistant connector includes a main body to electrically connect a high-voltage output and a load of the electrical device, and an insulated member between the main body and the conductive member to increase a beeline distance between the voltage-resistant connector and the insulated member to avoid arcing therebetween. The insulated member defines a pair of holes corresponding to the clasping portions. The pair of fixing arms of each of the pair of clasping portion extends through a corresponding hole and clasps the insulated member to fix the voltage-resistant connector on the conductive member.

Abstract: A lamp base may include a cylindrical body having an end surface, a first step portion and a second step portion, a first upper pin connector provided on the first step portion, a second upper pin connector provided on the second step portion, and a first and second lower pin connector provided on the end surface. Interfitting keys and recesses may also be used to insure that a lamp base is only coupled to an appropriate socket. Adapter blocks may be used to apply such recesses to an existing lamp.

Abstract: A lamp socket includes a housing case; a transformer to be housed in a transformer receiving section of the housing case; and a circuit board that is housed in a circuit board receiving section of the housing case and is assembled independently from the transformer. The transformer has a primary member and a secondary member, so that a voltage is applied on the primary member and a high voltage is output from the secondary member. In the lamp socket, an opening portion is provided in a barrier that separates the transformer receiving section and the circuit board receiving section, so that the primary member extends from the transformer receiving section to the circuit board receiving section. The opening portion is closed with a part that holds the primary member.

Abstract: An ultraviolet gas discharge lamp having contact pins extending downward from a base cap toward an opposing end. The lamp is placed within a conduit or duct for disinfecting air or water flowing within the conduit. The reverse contact pins that extend toward the opposing end mate with contact holes in a socket attached to the conduit through which the lamp is inserted. The lamp is only energized when the lamp is fully inserted into the duct and is de-energized upon removing the lamp from the duct. A shield protects the pins. A window may be place in the base cap so as to visually confirm that the lamp is energized and radiating. A key and mating receiver may be used on the base cap and the socket so as to prevent accidental insertion of an inappropriate lamp.

Abstract: A connector module, which permits termination of cross-connect wires on one surface and cable wires on an opposite surface, has an internal switch configuration which is normally open, such that the cross-connect wires are normally not connected to the cable wires. The module exhibits a generally “Z” shaped configuration which permits test access, jumper insertion, and protector mounting on either surface.

Abstract: The present invention provides a receptacle (100) having structures for reducing arcing when a plug (300) is drawn out of the receptacle (100). The receptacle (100) includes a number of electrical contacts (20), each of the electrical contacts (20) being slidably mating with a corresponding conductive terminal (34) of the plug (300) and therefore defining a mating area on the electrical contact (20). Each of the electrical contacts (20) includes a conductive area (222) to abut the corresponding terminal when the plug (300) are fully mated in the receptacle (100) and a less conductive area (224) where the conductive terminal (34) slides thereto and then leave the electrical contact (20) therefrom when the plug (300) is being drawn out of the receptacle (100).

Abstract: An electrical insulator preferably for medium and high voltages surrounds an interior space. Electrically active elements can be introduced into the interior space of the electrical insulator. In order to reduce the heat transfer between the interior space and the environment of the electrical insulator, the insulator contains thermally insulating areas.

Abstract: A lamp is provided having terminal pins mounted on and extending outwardly along a longitudinal axis of an end cap of the lamp. The pins are offset relative to one another along the longitudinal axis. The end cap has semi-circular, parallel surfaces at one end, and the pins extend outwardly from the respective semi-circular, parallel surfaces. A barrier wall extends substantially perpendicularly between the semi-circular surfaces. In a first embodiment, a male extension member extends outwardly from the barrier wall along at least a portion of the lower semi-circular surface. This male extension is coextensive with the upper semi-circular surface. Alternatively, in a second embodiment, a female recess is provided through the boundary wall. This recess again extends between the upper and lower semi-circular surfaces.

Abstract: In an electric connector on a printed circuit board that features a connector part acted upon with relatively high electric voltage values, sparkovers between the continuing strip conductors arranged on the printed circuit board and the soldering points of the electric contacts are prevented by providing a snap-on element with several chamber in the connector part, wherein the chamber walls of this snap-on element can be inserted into slots arranged in the printed circuit board, and wherein the chambers respectively enclose the soldering point of one of the electric contacts in the connector part.

Abstract: An electrical insulating device for a linear component forming part of a fuel system subjected to risks of possible external electrical discharges formed by a part (13) made of insulating material attached to two metal flanges (15, 17) that allow inserting the device (11) between two parts of said linear component, said part (13) being formed by a cylindrical body (21) with a castellated crown (23) on its outer side, formed by longitudinal (25) and transverse (27) segments, and said metal flanges (15, 17) having transverse projections (31, 33) facing the transverse segments (27) of the castellated crown (23) for facilitating their attachment by suitable means (39).

Abstract: A connector equipped with an insulant comprising four channels. Each channel is able to receive at the location of a rear extremity a strand of a cable, and at the location of a front extremity an end of a contact in order to connect each strand to an end. The connector comprises a ferrule equipped with four cavities arranged in such a way that a front extremity of each cavity coincides with a rear extremity of a channel of the insulant in such a way that each strand connected to an end in the connector extends in a cavity of the ferrule and in a corresponding channel of the insulant. The invention also relates to a process for fitting the coaxial cables in such a connector.

Abstract: A connector equipped with an insulant comprising four channels. Each channel is able to receive at the location of a rear extremity a strand of a cable, and at the location of a front extremity an end of a contact in order to connect each strand to an end. The connector comprises a ferrule equipped with four cavities arranged in such a way that a front extremity of each cavity coincides with a rear extremity of a channel of the insulant in such a way that each strand connected to an end in the connector extends in a cavity of the ferrule and in a corresponding channel of the insulant. The invention also relates to a process for fitting the coaxial cables in such a connector.

Abstract: A hermetically sealed compressor assembly including a housing, an electric motor located in the housing, a compression mechanism located in the housing and operatively coupled to the motor, and a terminal assembly comprising a cup-shaped terminal body and having electrically conductive pins extending therethrough. The cup-shaped terminal body extends through and is sealingly attached to the housing. A cluster block assembly is in communication with the terminal assembly and includes a cluster block fitted to the terminal body, the cluster block having free volume therein. The pins are electrically connected to the motor through the cluster block assembly. A cavity is defined between the interior of the cup-shaped terminal body and the cluster block, and a dielectric material substantially fills at least one of the cavity and the cluster block free volume.

Abstract: A remainder electric power distributing device of a computer for distributing the remainder electric power supplied form the power supply of the computer to auxiliary electronic devices includes at least one power jack and a connecting means. The power jack is electrically connected to the power supply of the computer and has at least one connecting interface exposed on the computer, such that another auxiliary electronic devices disposed outside the computer are electrically connected to the power jack and further share the electric power supplied from the power supply. The connecting means is used for installing the power jack to the computer.

Abstract: A connector (1) includes a body (7) for connecting wires (4) of a quadriaxially twisted cable (2) with contacts (11) of said connector. The connector includes insulating parts (14, 24, 34) for receiving the twisted cable, the untwisted wires and also to allow connecting the untwisted wires with the contacts. The insulating parts include channels arranged such that the characteristic impedance of the cable in the region of the untwisted wires is held at the same level as the characteristic impedance of the twisted wires.

Abstract: Disclosed is a power connector for a DC microwave oven, suitable for connecting power cords which are led from a DC power source and have positive and negative polarities, respectively, to a component arranged in a device chamber which is defined in a body of the DC microwave oven. The power connector comprises a connector body fixedly secured to a rear plate of the body of the DC microwave oven; power terminals for positive and negative polarities, the power terminals projecting into the device chamber from a rear surface of the connector body; and power cord connecting means projecting from a front surface of the connector body, for enabling the power cords which are led from the DC power source and have positive and negative polarities, to be connected thereto, respectively.

Abstract: A telecommunications plug for use with a cable having a plurality of wires arranged in a plurality of pairs, the telecommunications plug includes: a housing; a load bar positioned within the housing, the load bar positioning the wires relative to each other; an isolator positioned in the housing, the isolator being conductive and isolating a first pair of wires, a second pair of wires, a third pair of wires and a fourth pair of wires; and a first notch disposed in the isolator, the first notch is sized to control a cross talk between the first pair of wires and the second pair of wires.

Abstract: A wire lead guide arrangement provided on a terminal housing of a communication connector. The terminal housing includes a base wall, and two rows of terminal posts disposed at opposite sides of the base wall. The terminal posts are configured to receive outside wire leads for establishing connections between the leads and connector terminals associated with the terminal posts. A wire guide structure in the form of a wall or bar extends between the two rows of terminal posts. The guide structure is configured to separate and prevent interaction between a first set of leads terminating at one row of the terminal posts, and a second set of leads terminating at the other row of terminal posts. The arrangement avoids variations in lead placement that might tend to degrade rated connector performance, particularly with respect to near end crosstalk (NEXT).

Abstract: An enclosure for an electrical connection between two high-voltage cables that includes an electrically nonconductive separator integral with a mounting base for receiving the high-voltage cables. An electrically nonconductive tubular cover extends over the electrical connection and the high-voltage cables and is releasably attached to the base. The separator has at least two resiliently mounted fingers, and the electrically nonconductive cover extends over the fingers to depress and move the fingers into contact with the high-voltage cables, thereby securing the high-voltage cables in the mounting base. The high-voltage cables are extended beyond the mounting base a distance equal to a desired spacing separating the electrical connection between the high-voltage cables and an electrical conductor associated with the mounting base. The tubular cover is transparent so that the electrical connection joining the high-voltage cables can be visually inspected through the cover.

Abstract: A high-voltage connector consists of a base connector mating a socket connector. The base connector (10) has: an insulated housing (11), input and output pin contacts (12,13), and a partition (16) dividing the housing into compartments (18,19) to accommodate the pin contacts. The pin contacts respectively consists of front portions (12a,13a) protruding into the housing's front opening (14) and rear portions (12b,13b) isolated by a middle rear extension (17) of the housing. The socket connector (30) has: a bifurcated housing (31), and a pair of socket contacts (32,33) held in this housing and securable on wire ends. The second housing is insertable into the front opening, causing the socket contacts to fit on the front portions. A recess (34) formed in the second housing is fittable on the partition, and two cylindrical chambers (35,36) formed in the housing (31) accommodate the socket contacts isolated and each lying on one side.

Abstract: An electrical connector has a connector body with a cable cavity at its cable connection end and a strain relief coupled to the connector body adjacent the cable connection end. The strain relief extends into the cable cavity. A wire spacer is mounted in the cable cavity adjacent to strain relief. This spacer has a central core and four radially outwardly projecting flanges. The flanges are angular spaced from one another by angles of substantially 90 degrees. The spacer maintains separation of twisted wired pairs in a cable which is secured to the connector by the strain relief to enhance the electrical performance of the connector.

Abstract: An electrical connector assembly comprises a housing having mating and rear surfaces, and defining first passageways between the mating and rear surfaces. A plurality of first terminals is assembled to the first passageways from the rear face. Each terminal has an insulation displacement section extending beyond the rear face. At least a slot is defined in the rear face separating at least one terminal from the rest of the first terminals thereby preventing sparks generated from therebetween. A cover is assembled to the rear face enclosing the insulation displacement sections of the terminals. The cover includes a barrier received in the slot of the housing thereby eliminating sparks resulted when the one terminal carries high voltage.

Abstract: An improved water-proof socket adapter design includes an insert holder, a housing, a power cable and leaf copper conductors, the insert holder has a waterproof partition in it and an extension at its end on which a division, cord grooves, sliding blocks and ribs are provided, when a power cable with leaf copper conductors is placed in the insert holder, outer insulators of the power cable will rest against the ribs, and will be clamped by ribs in the cord grooves of the housing when the insert holder is inserted into the housing, therefore, the power cable is fixed firmly in the cord grooves with its cords being separated by the division; the housing has guide slots, key ways and sliding slots provided in it, when the insert holder is inserted into the housing, its waterproof partition and the division and the sliding blocks on the extension are fitted just in the guide slots and the sliding slots respectively, therefore, the cords of the power cable may be separated positively without any short circuit prov

Abstract: An electrical connector has a connector body with a cable cavity at its cable connection end and a strain relief coupled to the connector body adjacent the cable connection end. The strain relief extends into the cable cavity. A wire spacer is mounted in the cable cavity adjacent to strain relief. This spacer has a central core and four radially outwardly projecting flanges. The flanges are angular spaced from one another by angles of substantially 90 degrees. The spacer maintains separation of twisted wired pairs in a cable which is secured to the connector by the strain relief to enhance the electrical performance of the connector.

Abstract: A connector having improved dielectric strength is provided and includes a lower portion having a front side and a rear side and a bottom, a pair of terminal disposed in the lower portion, each of the pair of terminals having a side extension and a wire wrap tail, one of the pair of terminals being disposed in the lower portion toward the front side, the other of the pair of terminals being disposed in said lower portion toward the rear side thereby forming a gap between the side extensions of each of the pair of terminals. A base having a pair of terminal openings for receiving the pair of terminals, respectively, with the base being dimensioned and shaped for receiving the lower portion. A protruding wall is disposed in the base between the pair of terminal openings. A notch is disposed on the bottom of the lower portion, the notch being dimensioned and shaped so that when the lower portion is placed in the base, the protruding wall is matingly engaged with the notch.

Abstract: A lamp socket includes a socket body (1); a first terminal (40) provided in the first terminal mounting section and having a first terminal leg (43); a second terminal (50) provided in the second terminal mounting section and having a second terminal leg (53); first and second mating terminal receiving cavities (3A) and (3B) provided in a back of the socket body; a seal groove (14) surrounding the first mating terminal receiving cavity (3A) to separate the first mating terminal receiving cavity (3A) from the second mating terminal receiving cavity (3B) such that the first and second terminal legs project in the first and second mating terminal receiving cavities, respectively; a seal insulation member (70) fitted in the seal groove (14); and a cover (30) attached to the back of the socket body so that a seal press portion (34) of the cover is fitted into the seal groove (14) to apply a pressure on the seal insulation member (70).

Abstract: An electrical cable coupling assembly includes six equally angularly spaced axially extending tubular insulators which have a central internal annular ridge against which a thimble and a socket are collectively secured by the operation of a bolt. A phase barrier, which is a structural member, is engaged at opposed ends by respective plates. The plates are forced toward each other and into clamping engagement with insulators by the action of bolts which are threadedly engaged within complementary bores in the phase barrier.

Abstract: A universal electric socket includes an insulative bottom shell having a pair of spaced ribs defining three separated chambers and three downwardly extending protruding portions below the chambers. An insulative cover shell covers the bottom shell so that the chambers are electrically insulated from one another. The cover may include ribs that interfit with the ribs of the bottom shell's ribs to isolate contacts disposed in the chambers. A grounding contact plate and two blade contact plates are respectively mounted in the chambers of the bottom shell. The grounding contact plate and the blade contact plates each have a plurality of receiving portions for receiving the grounding prong or blades of any of a variety of electric plugs. The blade contact plates each have a receiving portion and a wire clamp fastened to the receiving portion for holding the hot or neutral wire.

Abstract: This invention relates to a plug structure for use in miniature light bulb series, which comprises a plug body provided with conductor blades, fuses, and a cover and associated with an end cap on one end. It makes use of an insertion association between separated conductor connectors and terminals and held by a locating plate to form a serial connection type plug. With such arrangement, the plug according to the invention can be made as an independent part for further assembling, avoiding tangling with electrical wires during delivery.

Abstract: A lamp socket includes a socket body (1); a first terminal (40) provided in the first terminal mounting section and having a first terminal leg (43), a second terminal (50) provided in the second terminal mounting section and having a second terminal leg (53), first and second mating terminal receiving cavities (3A) and (3B) provided in a back of the socket body; a seal groove (14) surrounding the first mating terminal receiving cavity (3A) to separate the first mating terminal receiving cavity (3A) from the second mating terminal receiving cavity (3B) such that the first and second terminal legs project in the first and second mating terminal receiving cavities, respectively; a seal insulation member (70) fitted in the seal groove (14); and a cover (30) attached to the back of the socket body so that a seal press portion (34) of the cover is fitted into the seal groove (14) to apply a pressure on the seal insulation member (70).

Abstract: An electrical wiring device, disclosed in the form of a duplex receptacle having the usual cover, body, terminals and mounting strap of the type extending longitudinally of the body rear surface and along the end surfaces. Two pairs of ribs are formed integrally with the body and extend in parallel relation longitudinally of the body rear surface with the strap lying between the two pairs of ribs. The purpose and effect of the ribs is to form a physical barrier of dielectric material and to lengthen the surface distance between the strap and portions of the hot and neutral wires terminated on the sides of the receptacle from which the insulation has been removed, thereby inhibiting electrical contact or arcing between the bare wires and the strap.

Abstract: A connector of an electrical connector assembly includes a housing defining a pair of parallel cavities extending therethrough, and a partition wall partitioning the cavities from one another. A leakage-prevention plate having a finlike configuration is interposed between the open ends of the two cavities. Thus, the path of least resistance between terminal fixtures within the respective cavities extends over both surfaces of the leakage-prevention plate. For this reason, the value of leakage current between the fixtures retained by the same connector will be extremely small, and the electrical corrosion of the terminal fixtures will be reliably suppressed. Furthermore, the leakage-prevention plate may possess a high degree of water repellency by being formed of an oil-impregnated resin in which particles of lubricating oil are dispersed within synthetic resin and/or by having the surfaces machined to a mirror finish. This prevents a continuous band of water from developing between the two terminal fixtures.

Abstract: Disclosed is a connector module which protects adjacent contacts from being shorted by condensation. Ridges are provided on a housing adjacent each contact such that water droplets of a sufficient width to bridge the distances between contacts cannot form.

Abstract: An electrostatic spray gun for the application of paints and other coatings has a high voltage power supply having a contact at the front end thereof. A flange on the end of the power supply surrounds the contact and a rubber boot seal snaps over the flange. Located within the rubber boot is a conductive rubber pin which contacts with a conductor located in the barrel of the gun. Utilization of this design minimizes capacitance in the front end of the gun and also virtually eliminates air volume in the area which in turn limits the production of harmful ozone.

Abstract: The invention relates to a connecting device (200) to equip an end of an electric cable (100), including a multilayer sleeve having an axis (202) and having an insulating intermediate layer (204) interposed between two layers suitable for ensuring the guiding of an electric field.According to the invention, only the end or ends (207) of the sleeve designed to cooperate with a cable end are in a state of radial expansion such that they present an inside diameter that is greater than the outside diameter of the corresponding cable end and which will be less than this outside diameter once retraction of the said ends of the sleeve has been brought about.The invention also relates to a process for mounting this device on the cable or cables.

Abstract: In a method of producing electrode receptacle assemblies for resisting sudden heat increases comprising the steps of selecting carbonate resin plastic having a density of 1.2 mg/m.sup.3, melt flow rate of 9 to about 12 g/10 m at 300 degrees Centigrade and 1,200 g load, and a tensile stress at yield of 63 MPa, a tensile stress at break of 68 MPa, a deflection temperature under load at 1.

Abstract: In an electrical receptacle having a generally hollow cylindrical section for receiving a high tension wire at one end and a neon tube at another end, said neon tube adapted for electrical connection with said high tension wire interiorally of said hollow cylindrical section, said hollow cylindrical section comprised of carbonate resin plastic for resisting sudden heat increases within said hollow cylindrical section in the region of said electrical contact with said neon tube and said high tension wire wherein said carbonate resin plastic has a melt flow of 9 to about 12 g/10 m at 300 degrees Centigrade and 1,200 g load and tensile stress at yield of 63 MPa, a tensile stress at break of 68 MPa, a delfection temperature under load at 1.8 MPa of 133 degrees Centigrade and a dielectric strength of greater than 16 KV/mm.

Abstract: An easily removable high voltage ground stud insulating system allows ready access to the ground stud bolt having one end directly attached to a switchgear terminal bus, with the other end adapted to receive a temporary ground connector. A two-part insulative enclosure consisting of a first thermoplastic insulative cylinder is arranged over that part of the ground stud that is adapted for connection with the ground connector while a second insulative cylinder is arranged over the other end. The insulating properties of the thermoplastic material virtually eliminate arcing between the ground stud and the surrounding atmosphere when the switchgear is energized with high voltage. The insulating system is adapted for connection with the ground stud by means of a pair of threaded washers that serve to attach the insulative cylinders on both sides of the ground connector.

Abstract: An easily removable high voltage ground stud insulative enclosure allows ready access to the ground stud bolt having one end directly attached to a switchgear terminal bus, with the other end adapted to receive a temporary ground connector. The removable part of the insulative enclosure consists of a thermoplastic insulative cylinder that is arranged over that part of the ground stud that is adapted for connection with the ground connector. The insulating properties of the thermoplastic material virtually eliminate arcing between the ground stud and the surrounding atmosphere when the switchgear is energized with high voltage.

Abstract: According to the invention a high voltage electrical coupling for attachment through a wall comprises a coupling body around a high voltage conductor and having a flange abutting one side of the wall and an external thread extending from the flange through the wall; and a nut with internal threads screwing onto the external thread and a face abutting the other side of the wall; wherein at least one of said body and nut is of dielectric material and the nut has air channels in its abutting face extending outwardly from its internal threads to its exterior for releasing air from the threads and face when the nut is screwed into abutment with the wall.

Abstract: An electric cable joint (including a termination) comprises at least one inner component heat-shrunk onto a cable or on to at least one part of a cable and at least one outer component of resilient material which is an interference fit with the inner component(s). The heat-shrink component takes up considerable variation in the size of the underlying cable (or part thereof) so that a range of cable sizes can be accommodated by a much smaller number of inner component sizes than in a purely "slip-on" range.