Abstract: An electrical connector is configured to couple an electrical conductor to a support surface. The electrical connector includes a terminal block having a connecting aperture, a threaded aperture, and a channel. At least a portion of the threaded aperture is positioned between the channel and the connecting aperture. The connecting aperture is configured to receive the electrical conductor. The electrical connector includes a fastener having threads receivable within the threaded aperture. The fastener is configured to secure the electrical conductor against movement relative to the terminal block. The electrical connector includes a lock receivable within the channel to inhibit unintentional movement of the fastener relative to the terminal block.

Abstract: The disclosure relates to a shearing screw for clamping an electrical conductor within a cable connector. The shearing screw comprises a screw body for engaging the cable connector, which further comprises an outer thread and a clamping surface for clamping the electrical conductor within the cable connector. The screw body also comprises a collar and a groove for detaching the collar from the screw body, whereas the shearing screw comprises a nut for shearing the shearing screw. The collar and the nut are adapted to be rotatable simultaneously with a sleeve for fastening the shearing screw to the cable connector.

Abstract: Assemblies and methods are provided for establishing an electrical connection and enhancing connectability that utilize an electrical connector having a housing and a socket for receiving an electrical conductor having multiple conductor elements or conductor layers. A conductive fastener extends through the housing into the socket. The fastener can penetrate multiple conductor elements to establish an electrical connection among conductor elements. One or more of the conductor elements can include a cutaway segment that receives a conductive fastener to establish an electrical connection among the connector, fastener, and multiple conductor elements. A conductive shim may be disposed about one or more of the conductor elements and received within the cutaway segment, and the conductive fastener can engage the conductive shim to establish electrical contact among multiple conductor elements through the shim.

Abstract: The invention relates to a terminal with a housing, with at least two clamp contacts to produce an electronic connection to electric contacts and with connection elements for producing an electric connection to an electronic sub-assembly arranged outside the electrical terminal block, with the electrical terminal block comprising an electronic sub-assembly and with the clamp contacts being connected via the electronic sub-assembly to connection elements as well as an electrical terminal block-circuit board arrangement with an electronic sub-assembly in the form of a circuit board and with a terminal electrically connected to the electronic sub-assembly.

Abstract: A cable connection assembly includes an electrically conductive cable, an electrically conductive connector, and a flowable sealant. The electrical cable includes a conductor. The connector includes a connector body having an outer surface and a lengthwise connector axis. The connector body defines a conductor cavity receiving the conductor of the electrical cable. The connector further includes a sealant flow blocking wall on the connector body and extending radially outwardly from the outer surface of the connector body. The flowable sealant surrounds a portion of the connector body. The sealant flow blocking wall is configured to inhibit flow of the sealant on the outer surface along the lengthwise connector axis.

Abstract: By providing a single housing, component or element incorporating a plurality of passageways or receiving zones formed therein in cooperating association with a mounting ring or clamp constructed for being quickly and easily secured to a clamp, conductor or conduit mounted to an electrical box, junction box, meter box, or similar enclosure, an efficient, easily manufactured and easily assembled bonding bar or grounding bridge is achieved. Preferably, the plurality of passageways/receiving zones are constructed with each passageway or receiving zone cooperatively associated with a locking screw or set screw configured to enable grounding conductors to be inserted through the passageway/receiving zone and securely mounted therein. In this way, grounding conductors from telephones, cable televisions, satellite receivers, radios, television antennas, and the like may be inserted into the passageways/receiving zones and securely mounted in the desired position.

Abstract: The present invention relates to a power line coupler for coupling a pair of cables together. The coupler includes at least one protector for protecting the cables. A clamp is provided for clamping the protector and cables together.

Abstract: The subject matter of the invention is an electrical apparatus (1) having a screw terminal for connecting electrical conductors, comprising a housing (3) with an upper face and a lower face (5, 7) and at least two screw shafts (9) which are arranged next to one another in the housing (3), wherein the screw shafts (9) each have a screw feed opening (12) on the upper face (5) and extend in the direction of the lower face (7). A transition region (11) connects the screw shafts (9) to one another. Projections (17) are arranged on the inner face of the screw shafts (9).

Abstract: The present invention relates to a power line coupler for coupling a pair of cables together. The coupler includes a protector for receiving and protecting the cables. The protector includes a pair of protection members between which the cables can be received. A clamp is provided for clamping the protector and cables together.

Abstract: The invention relates to a device for connecting two electrical conductors (4, 5), comprising a metallic clamp (1) that is designed as a pipe section and that comprises in the wall thereof at least two through holes provided with a thread for receiving clamping screws (2) provided with an external thread. In the pipe section of the clamp (1), at least one central through hole provided with a thread is furnished between the two through holes in order to receive a fixing screw (3) provided with an external thread, wherein the fixing screw has a tapered, approximately wedge-shaped tip (11), which, in the assembled position, lies rigidly against the end faces of the two conductors (4, 5) inserted into the pipe section. The tip (11) provided with an external thread is screwed into a hole (10) of the fixing screw (3) provided with an internal thread, and the external thread of the tip (1) runs opposite to the external thread of the fixing screw (3).

Abstract: The present invention relates to a power line coupler for coupling a pair of cables together. The coupler comprises a protector for receiving and protecting the cables. A clamp is provided for clamping the protector and cables together. In many embodiments, the protector comprises an inner tube in which the cables can be inserted from opposite sides. In one embodiment, the clamp comprises an outer tube in which the protector is located.

Abstract: By providing a single housing, component or element incorporating a plurality of passageways or receiving zones formed therein, at least one of which is substantially enlarged an easily assembled bonding bar or grounding bridge is achieved. Each passageway or receiving zone is cooperatively associated with a locking screw or set screw which is configured to enable grounding conductors to be inserted through the passageway/receiving zone and securely mounted therein. In addition, the enlarged passageway or receiving zone is constructed for enabling the upper terminating end of a grounding rod to be inserted therein in cooperative association with the grounding conductor extending from an associated meter box, junction box, electrical outlet box or the like. In this way, all of the requirements for a highly effective intersystem bonding termination are realized and all of the newly enacted code provisions are satisfied.

Abstract: An electrical terminal screw apparatus for the purpose of connection of electrical conductors having a housing with a shaft in which is provided a screw and featuring a screw head and shaft which are adjusted relative to one another in such a way that during revolution of the screw in a first angle range there is a minimal torsional moment and maximum torsional moment in a second rotational angle range.

Abstract: A high-power, single-pole electrical connector is disclosed. A nonconductive mounting base is used to attach the connector to an electrical distribution panel. The connector extending from the panel has a bolted together connection, rather than a pin-and-collet configuration, as is found in some existing connectors. In the present invention, a panel-mounted connection is secured to a working side connection by bolting the two parts together.

Abstract: An electrical conductor repair device for restoring mechanical and electrical integrity to a compromised section of an electrical conductor. The device includes a body that serves as an electrical shunt and a mechanical support. The body includes a first end section for attachment to the conductor at a location on one side of the compromised section, and a second end section for attachment to the conductor at a location on the other side of the compromised section. The end sections are connected by an intermediate section.

Abstract: A connection article is provided for a cable comprising at least one wire. The connection article comprises a holder, at least one connector arranged in the holder and having a first receiving opening for receiving a wire to be connected, and guiding means arranged in front of the first receiving opening of the at least one connector, the first receiving opening defining a cross section and the guiding means comprising at least one guiding passage extending through the guiding means and aligned with the first receiving opening of the at least one connector for guiding a wire into the first receiving opening of the connector. The at least one guiding passage comprises opposite distal and proximal ends, the proximal end facing towards and the distal end facing away from the first receiving opening of the at least one connector. The proximal end has a cross section not larger than the cross section of the first receiving opening of the at least one connector.

Abstract: An apparatus and method is provided for inhibiting theft of electrical wiring through the access opening of an electrical fixture supporting pole, such as a street light pole. Prior to securing the pole to the base, a wire clamping element is placed on the base around the passage for the power supply cable. The electrical power supply cable is clamped to a vertical surface of the clamping element, and the free end of the cable is extended to a location proximate the second opposed vertical surface of the clamping element. The electrical connection cable from the electrical fixture is then attached to the power supply cable, and the pole and the clamping element are secured to the base such that the access opening is positioned to provide access to the connections of the power supply cable and electrical connection cable from the electrical fixture, but access to the clamping device which secures the power supply cable to the first surface is not possible without removing the pole.

Abstract: A dead cable end distributes holding force over a length of a cable end to reduce or eliminate damage to cables. The dead cable end includes a housing containing a plurality of collets each residing in a collet receptacle. Each collet includes a conical exterior and a lengthwise collet gap, and each collet receptacle includes a conical interior. The collets and collet receptacle are held inside the housing by a screw-in retaining nut, and the collet and collet receptacle pairs are compressed between the retaining nut and a spring inside the housing. The cable end resides inside the collets, and axial compressive forces on each collet and collet receptacle pair cause each collet to compress radially and hold the cable end. Anti-rotation pins are inserted through the housing into slots in the collet receptacle next to the screw-in retainer to prevent internal rotation during tightening.

Abstract: An open-face electrical wire connector for forming an electrical connection to a wire connector lug wherein the wire connector lug, which is free of any sealant can be brought into engagement with another portion of a housing, which carries a sealant, to cause the sealant to flow around the wire connector lug and the electrical connection therein for on-the-go formation of a sealant covered electrical connection.

Abstract: For the purpose of facilitating consolidation of a high-tension cable (HT cable) with a bus bar that conducts electricity and extends horizontally, on which the HT cable is suspended, a contact pocket (21) for the connector piece (32) is provided, which is divided in the vertical orientation, designed for the cross-section of the solid connector piece (32) of the HT cable (31), of which pocket one of the partial pieces (first partial piece 211) is fixed in place on the bus bar, 11 the second partial piece (212) being articulated 25 onto the first partial piece (211) so as to pivot relative to the first partial piece (211), whereby the [word/words missing], which is pivoted against the first partial piece (211), fixing in place the solid connector piece (32) of the UT cable (31) assigned to the first partial piece (211) of the contact pocket (21) by means of horizontal displacement, in the accommodation formed by the first partial piece (211) and the second partial piece (212) of the contact pocket (21), is co

Abstract: The present invention relates to a new and improved connector bar and techniques for making the same. The connector bar includes a metal body having side-by-side conductor ports, transverse threaded pedestal mount apertures, and set screw openings. The transverse threaded pedestal mount apertures extend completely through the body of the connector bar and are adapted for attachment to a pedestal box. The set screw openings are adapted to each receive a set screw for securing a conductor in one of the conductor ports. Preferably, the transverse threaded pedestal mount apertures and set screw openings are formed from the same side of the connector bar.

Abstract: An electric junction box including a case, an input bus bar, an output bus bar and a fuse which are accommodated within the case, wherein an input electric wire and an output electric wire are electrically connected to the input bus bar and the output bus bar, respectively, the electric junction box further including an input-side fastening member which fastens an input terminal of the fuse and the input bus bar to the case in such a state that the input terminal is laid to overlap the input bus bar, and an output-side fastening member which fastens an output terminal of the fuse and the output bus bar to the case in such a state that the output terminal is laid to overlap the output bus bar, wherein the input-side fastening member and the output-side fastening member are conductive and are passed through the case, and a connecting terminal of the input electric wire is fastened to the case at a distal end portion of the input-side fastening member which is exposed from the case, and a connecting terminal of

Abstract: The present invention relates to a seal for an electric cable that is connected to a second cable in a confined location, in which a first and second lengths of insulated electrical cable extend into a confined location and a connector connects the first and second lengths of cable, and a method for forming such a seal. A thin layer of conductive material covers a first portion of the first length of insulated electrical cable, with a second portion of the insulated electrical cable projecting beyond the conductive material for connection to the connector and providing an exposed end of the conductive material.

Abstract: A shearable fastener has a threaded shank adapted for engagement with a threaded bore and a head portion formed for engagement with a drive tool, the shank being formed with a series of axially separated weakenings defining a series of shear planes. The weakenings are formed such that the applied torque necessary to cause the shank to shear increases progressively from the shear plane furthest from the head portion to the shear plane nearest the head portion. The weakenings are holes, grooves or slits formed in the shank and the radius at the bottom of the holes, grooves or slits is varied to produce or contribute to the increase in shear torque.

Abstract: A rocket for use with an electrical connector. The rocket is made of suitable resilient material and is used to seal a port through which a conductor passes to connect to the connector. The rocket has a tubular base section that snugly fits within the port, and a longer, tapered, tubular, sealing section extending from one end of the base section. The sealing section is cut through along a line transverse to its longitudinal axis at a location on the section to provide an opening through which a conductor of a specific size, relative to the opening, can pass while expanding a portion of the sealing section adjacent the opening so as to tightly seal it against the conductor.

Abstract: An open-face electrical wire connector for forming an electrical connection to a wire connector lug wherein the wire connector lug, which is free of any sealant, is located in a portion of a housing that can be brought into engagement with another portion of a housing, which carries a sealant, to cause the sealant to flow around the wire connector lug and the electrical connection therein for on-the-go formation of a sealant covered electrical connection.

Abstract: A connector for connecting two medium-voltage electrical power cables each including at least one conductor surrounded by an insulative jacket includes tubular screw contacts which connect together stripped ends of the conductors inserted into the contacts and retained by screws. An extension attached to at least one end of the connector covers a portion of the insulative jacket of the cable over a length greater than 10 mm.

Abstract: Electrical connectors are provided including a connector body with a tubular socket to receive an electrical conductor. A clamping means is arranged to secure the electrical conductor within the socket. A socket insert fits within the socket so as to reduce the effective size of the socket. The socket insert is tubular and is adapted to be deformed by the clamping means into retaining engagement with the electrical conductor.

Abstract: The disclosed electrical connector, which connects a terminal stud to multiple branch-circuit wires, comprises two primary components of extruded metal: (A) a conductor having a first portion providing branch-circuit securing devices, and a second portion providing one or more stud-contacting areas; and (B) a clamp for securing a stud against a contact area; the clamp and said second portion provide a slip-fit stud-receiving passage.

Abstract: A top-loading pad mount electrical connector is provided with swing-away pressure pads for securing secondary conductors to the connector body. The swing-away pressure pads are frictionally engaged with threaded fasteners to pivot with the fastener between a clamping position where a jaw is aligned with and over a conductor lay-in groove and an open position which clears a conductor lay-in opening above the lay-in groove. A split insulating cover permits the top-loading pad mount connector to be installed and the connections with secondary conductors established prior to electrically insulating the assembly to ensure code compliance.

Abstract: An apparatus is disclosed for clamping cable. The apparatus is a barrier that clamps and/or adheres to the cable. The barrier has a base, and the base has a diameter greater than an aperture through which the cable passes. The base of the barrier hinders the cable from pulling through the aperture, yet the barrier allows the cable to push through the aperture.

Abstract: A terminal block assembly that enables multiple speakers, or woofers, to be connected in a series or parallel. In a first embodiment, the terminal block assembly has four receiving ports, two ports being formed in a first metal holder and two ports being formed in a second metal holder. The output leads from a first speaker are coupled to the two of the receiving ports; the output leads from a second speaker are coupled to the other two receiving ports. The output leads are mounted securely in the receiving ports using fastening screws. The outputs from a power amplifier are coupled to the input terminals on the terminal block. In a second embodiment, the terminal block assembly comprises two receiving ports, both port being formed in a metal holder.

Abstract: A terminal block assembly that enables multiple speakers, or woofers, to be connected in a series or parallel. In a first embodiment, the terminal block assembly has four receiving ports, two ports being formed in a first metal holder and two ports being formed in a second metal holder. The output leads from a first speaker are coupled to the two of the receiving ports; the output leads from a second speaker are coupled to the other two receiving ports. The output leads are mounted securely in the receiving ports using fastening screws. The outputs from a power amplifier are coupled to the input terminals on the terminal block. In a second embodiment, the terminal block assembly comprises two receiving ports, both port being formed in a metal holder.

Abstract: The transformer box connector comprises a plurality of terminal blocks and a terminal block retainer with a hinged cover mounted on a housing. The terminal block retainer has a plurality of insulating ribs that act as partitions. Terminal blocks for receiving at least one electrical wire are mounted within the spaces between each insulating rib. Each terminal block is mounted to the terminal block retainer by a planar member that extends from its base. A fastening member, which provides an electrical connection from the wire secured in the terminal blocks to the transformer, extends from the planar member and can be configured as a fastening screw or a fastening post. The fastening member provides means for attaching the terminal block to the terminal block retainer and to the transformer housing. The hinged cover may include openings for access to set screws in the terminal blocks.

Abstract: A cable rack clamp includes a clamping member, a base member, a retainer, and first and second bolts. The clamping member includes a longitudinally extending, U-shaped female mounting segment having a front wall and oppositely disposed side walls. A clamping segment extends laterally from the side walls at an end portion of the female mounting segment, forming an opening. The base member includes a longitudinally extending rack engagement portion having upper and lower segments. The lower segment extends laterally forward of the front surface of the upper segment to a longitudinally extending male mounting segment. The male mounting segment is dimensioned to be slidably received in the opening of the clamping member. The retainer may be inserted through the opening of the cable rack.

Abstract: A track and connector arrangement for a track light in which the connecting unit at each end of the connector has two conductor holders holding positive and negative conductors at a respective metallic spring plate, and the track has two electrically conductive wire rods of rectangular cross-section that are respectively inserted into the conductor holders and held in contact with the respective metallic spring plate in each conductor holder to receive power supply from the positive and negative conductors after connection of the connector to the track.

Abstract: The multi-tap pad connector includes an integral conductive body with a longitudinal axis. A threaded female blind aperture is formed about a portion of the longitudinal axis for receiving the output from a secondary side of a transformer or similar electrical source. The body further includes a plurality of secondary electrical connection channels which are oriented perpendicularly with respect to the longitudinal axis. Oblique flanges are formed over the secondary electrical connection channels and include threaded apertures therethrough. The threaded apertures are directed to the secondary electrical connection channels. Allen set screws pass through the threaded apertures and into the secondary electrical connections channels to secure the secondary connectors both electrically and mechanically to the multi-tap pad connector.

Abstract: A weather head electrical connection box enables electrical connection to a home or business without the need for splicing. The box contains three splice blocks which have two sets of orifices equipped with set screws, a first set for the power feed and the second for the service entrance cable from the customer's building. These connector blocks are of conductive material and transmit power from the in feed to the service entrance cable without the need for splicing. The connection box is provided with a removable cover that may be provided with a pivot finger that engages in a slot secured to the bottom of the box and may be closed by a wire to restrict access to the box. The housing may be alternatively attached to the top of a service pipe that extends above the roof or to the side of a house.

Abstract: The present invention discloses a frequency down converter for a multichannel multipoint distribution service (MMDS) television (TV) signal transmission and receiving system. The down converter system includes a separate address module for controlling signal reception for a subscriber according to a subscribing status carried by radio frequency signals transmitted from a signal transmission station. The address module includes a module container for containing a main circuit assembly therein. The down converter further includes a F-type connector for screwing onto the main circuit assembly through a connector opening of the module container for establishing an electric contact and for mechanically pulling the electric circuit assembly for sealing another opening on the module container.

Abstract: An electrical connector is disclosed for enhancing the thermal emissivity of an electrical connection. An electrical connector, such as a typical C-member and wedge style connector, is provided that is constructed of electrically conductive material and has a surface treatment on the exterior surfaces of the connector that increases emissivity of the connector. Contact surfaces are provided on the connector that are electrically conductive for ensuring electrical continuity within the connector. The surface treatment operates to increase the thermal transfer efficiency within the connector and thereby lower the operating temperature of the connector.

Abstract: The electrical connector includes a male element traveling within a female element, the male element having a cantilevered C-clamp arm opposing a C-clamp element formed on the female element. A spacer includes a planar surface with a passageway through which at least a portion of the male and female elements pass thereby slidably interlocking the male and female element to each other. The spacer further includes a wire spacer which travels between the clamp arms and separates the conductors to be clamped. Ledges are formed on the male and female elements to limit travel of the male element with respect to the female element and to limit travel of the spacer with respect to the male element. A bolt passing through the female element and threadably engaging the male element secures the male element to the female element so that the clamp arms clamp conductors as separated by the wire spacer.

Abstract: A shearable fastener has a threaded shank (10) adapted for engagement with a threaded bore and a head (12) formed for engagement with a drive tool. The shank (10) is formed with a series of axially separated weakenings (14) defining a series of shear planes, the weakenings (14) being formed such that the applied torque necessary to cause the shank (10) to shear increases progressively from the shear plane (14) furthest from the head (12) to the shear plane (14) nearest the head (12).

Abstract: A joint circuit is provided to form a joint circuit without inserting terminals into a connector at a later stage. The joint circuit employs terminals 35 that have mount holes. The terminals 35 are connected in advance with ends of wires to be connected with each other among the wires which will form an automotive wiring harness. Partition walls 21 are provided in an insulation casing 20 to define a plurality of terminal connecting chambers 22, 23. The heads of bolts are embedded in the bottom walls of the respective terminal connecting chambers so that the shafts thereof project. The mount holes of the terminals at the ends of the wires to be connected with each other are fitted down on the bolt shafts and are tightened by nuts to form a joint circuit. This joint circuit includes a joint circuit for grounding.

Abstract: A device and method for grounding/bonding a cable television connector. A planar block of conductive material having various configurations connects the connector parallel to a ground/bond wire. The block has a set of two to four throughbores in it. The first throughbore receives the cable television connector, the second throughbore receives a ground/bond wire or a ground/bond bolt, the third throughbore receives a set screw for the ground/bond wire, and the fourth throughbore if required receives a set screw for the cable television connector. The block can have a plurality of the three throughbore sets for grounding/bonding a plurality of cable television connectors. The cable television connectors generally have threads that mate with the threads of the first throughbore. One embodiment integrates the block and the cable television connector resulting in only two throughbores for a set screw to secure a ground/bond wire which is perpendicular to the axis of the connector.

Abstract: A wound wire terminal assembly for replacing spade terminals in joining wires, particularly in air conditioning compressor and fan motor relays. The wound wire terminal assembly includes a primary wire connector constructed of wound wire for receiving a male spade terminal connected to a first wire or the first wire itself, and a screw threaded into the primary wire connector and engaging the male spade terminal or the first wire to secure the male spade terminal or first wire in the primary wire connector of the wound wire terminal assembly. The primary wire connector is typically wound on a primary mandrel shaped in the configuration of a cylinder and is connected to a typically smaller, cylindrical, mandrel-wound secondary wire connector that receives a second wire by soldered connection.

Abstract: A cable clamp terminal for use with an electrical apparatus is provided, the cable clamp terminal including a terminal block having a threaded hole defined therein. An intermediate screw and an upper screw are disposed in the threaded hole, whereby the intermediate screw divides the threaded hole into a lower housing and an upper housing. A lower opening extending through the terminal block and communicating with the lower housing provides access for an end of a corresponding lower cable to be positioned and secured in the lower housing. An upper opening extending through the terminal block and communicating with the upper housing provides access for an end of a corresponding upper cable to be positioned and secured in the upper housing. The lower cable can be secured in the lower housing by tightening the intermediate screw without removing the upper screw from the threaded hole.

Abstract: A slicing block includes two threaded recesses, each of which intersects with a perpendicular passageway sized to require a multi-strand electric cable. A resilient saddle is guided vertically within each threaded recess by virtue of diametrically opposed vertical keyways formed through the threads of the threaded recess. A pressure screw is threadably received within each threaded recess and, when threaded into the threaded recess, engages a rear face of a saddle to reciprocate the saddle into the recess while being guided by the vertical keyways until the saddle bears upon an electric cable to clamp the electric cable into place within the perpendicular passageway.

Abstract: This invention relates to a junction connector for permanently connecting electric cables, wherein its sleeve comprises a bore passing longitudinally therethrough, a part of the wall of this bore, extending over an angle at the center greater than 180.degree., being provided with longitudinal ribs projecting radially towards the center; aligned tapped holes, made from the outside, open out in the bore opposite the central generatrix of its ribbed part; and locking bolts whose end is in the form of a spherical cap and incorporating a cleavable head, are screwed in the tapped holes to assemble the cables sleeve.

Abstract: A watthour meter adapter includes jaw contacts for receiving blade terminals of a plug-in watthour meter. Apertures formed in an annular side wall of the adapter housing receive external line and load conductors therethrough. A terminal block disposed within the annular side wall at a lower portion of the housing receives the external line and load conductors as well as internal electrical conductors connected at opposite ends to the jaw contacts. A slot formed in a bottom wall of the housing receives a fastener to mount the housing to an external support surface. The terminal block and terminal connections as well as the mounting fastener are completely contained within and covered by a watthour meter when a watthour meter is mounted on the adapter.

Abstract: A high-voltage anti-corona connector and method of use rely upon a hand-rtable wheel which is attachable to a threaded stud on a mounting flange for rapidly connecting and disconnecting an adaptor plate to a helix coil of a radio frequency transmit system. The handle of the wheel is ring shaped to preventing corona discharge from the area surrounding the connector.