Abstract: A powered rough-in assembly is disclosed. The powered rough-in assembly includes a mounting frame that is annular, having an inner perimeter sized and shaped to receive a speaker module, and an outer perimeter having a polygonal shape with a plurality of edges. The powered rough-in assembly also includes a wiring block coupled to a first edge of the mounting frame. The wiring block includes two spring-type terminals and two wires, each terminal communicatively coupled to a first end of a different wire of the two wires. The plurality of edges includes at least one edge that is a flange having a plurality of countersunk holes. The plurality of edges also includes at least two edges releasably coupled to metal wings.

Abstract: A stab (pin and sleeve) electrical connector with improved safety is described. The female (sleeve) connector exterior surface is coated or made from with a nonconductive insulating material. A pressure loaded insulator plug is disposed inside the female sleeve. An electrical connection is made when the male (pin) connector is inserted into the female sleeve. The male pin contacts the insulator plug inside the female sleeve, causing compression, and makes electrical contact with the uninsulated inside of the sleeve. As the male pin is removed, the pressure mechanism of the insulator plug pushes the plug out flush with the external insulated surface making the female sleeve touch safe. Therefore, embodiments provide a high level of safety for the pin and sleeve electrical connection method without adding large or troublesome moving parts.

Abstract: A quick connection system and method of installing a wall-mounted or ceiling-mounted fixture to house current. The system comprises a light fixture or the like with a plate having a conductive track and a pair of conductive pins, a plate for a junction box having a conductive track with a plurality of openings such that when the conductive pins of the fixture are inserted into the junction plate openings, an electrical connection is made between the fixture and the junction box. A kit is provided having a light fixture or the like with a plate having a conductive track and conductive pins, a plate for a junction box having a conductive track have a plurality of openings to accommodate the conductive pins. The kit is useful for retrofitting the junction box or light fixture and the like. A method of using the system and the kit is disclosed.

Abstract: There is provided a socket for selectively coupling to a plug. The socket comprising a conforming portion adapted to conform to a first configuration complementary to the plug, wherein the first configuration allows the socket to electrically couple to the plug; and a securing member adjustable to releasably engage at least part of the conforming portion to substantially prevent the conforming portion from changing to a second configuration different from the first configuration, wherein the second configuration substantially prevents the socket from electrically coupling to the plug. There are also provided a plug configured to cooperate with the socket, a plug and socket assembly, a method of setting the socket for selectively coupling to the plug, and a method of resetting the socket programmed to selectively coupling to the plug.

Abstract: A cable connector system that comprises a first contact assembly that includes a housing and a first contact received in the housing, where the first contact has a cable termination portion and an interface portion that includes a first contact surface and a cap that has a first locking surface. A second contact assembly mates with the first contact assembly and includes a housing and a second contact that has a second contact surface configured to engage the first contact surface and the second contact being rotatable with respect to the first contact. A locking member that includes a second locking surface is configured to engage the first locking surface, wherein when the second locking surface engages the first locking surface, the first contact assembly is prevented from moving axially with respect to the second contact assembly while the first contact remains rotatable with the second contact.

Abstract: The present invention relates to a method and an arrangement for visual indication of an electrical quantity, being one or several of power, current and/or voltage through a conductor. The arrangement comprises a substantially wire shaped illuminator and a controller which controls at least one illumination characteristic of said illuminator with respect to said electrical feature.

Abstract: A housing for a RFID system is provided including one or more radio frequency antennas, one or more RFID readers, and a central frame. The central frame supports the antenna(s) and reader(s) therein. The central frame includes a bollard, a frame portion, and a tile exterior composed of an impact-resistant plastic. The frame and tile exterior are protected by the bollard from forceful impacts to the central frame.

Abstract: A fork assembly includes a fixed board, a ground portion, a trigger portion, a switch and a resilient element. The ground portion includes a first arm and a second arm located opposite to the first arm, one end of each of the first arm and the second arm is connected to the fixed board, and the other end is free. The trigger portion includes a third arm and a fourth arm located opposite to the third arm, one end of each of the third arm and the fourth arm is connected to the fixed board. The switch is fixed on the other end of the third arm, and includes a normally open contact. The resilient element is configured on the other end of the fourth arm and corresponding to the normally open contact of the switch. The first, second, third and forth arms are conductively and resiliently connected together.

Abstract: An electrical card connector assembly includes an electrical card connector (100) and a PCB (4) where the electrical card connector is assembled. The electrical card connector includes a metal shield (1), an insulating housing (2) and a terminal module (3) received in the insulating housing. The insulating housing associates with the metal shield to define a card receiving room. The terminal module includes a body portion (30) and a plurality of terminals (31) received in the body portion. The metal shield forms a base (10) and a plurality of sidewalls (11) extending vertically from the base. The metal shield further comprises at least one elastic piece (13) extending from the edge of the base, which forms a grounding portion (131) at a free end thereof. The PCB defines at least one grounding pad (47) mating with the grounding portion of the elastic piece.

Abstract: In a power plug capable of preventing twists of a power supply line and turning on/off power supplied to a load device according to a rotation of a rotational unit by dividing the power plug itself into a fixed unit and the rotational unit, the power plug includes the fixed unit at which prongs and a connection terminal connected to the prongs are installed, a rotational unit rotationally installed to the upper portion of the fixed unit and supplying power to the load device, a power on/off unit placed between the fixed unit and the rotational unit and connecting/disconnecting a power supply to the load device according to the rotation of the rotational unit, and a locking unit installed to the upper portion of the rotational unit and locking the rotation of the rotational unit.

Abstract: The invention relates to the support of light electric appliances such as light fittings and small fans. The device according to the invention provides a plug and socket combination powering and supporting an appliance in a manner allowing the user to change its orientation. The combination is particularly useful where there is a frequent need to move light appliances from one location to another. The combination comprises a fixable socket and a plug revolvable therein for conducting electric power and for mechanically supporting in a desired orientation an appliance receiving the power.

Abstract: A replaceable eddy current probe for inspecting small (¾ inch diameter or smaller) tubes of heat exchangers has a head portion with bobbin coils and a delivery conduit connector portion with a flexible conduit having a first end extending from the head portion and a second end extending to the connector portion. The connector portion has electrical terminal connections electrically connected to the bobbin coils by wires extending through the flexible conduit. The connector portion also has a housing with a surface surrounding the electrical terminal connections and the surface has a 360° delivery conduit mechanical interlock which may be a recess or a proturburance for mating with a proturberance or recess of a delivery conduit. The 360° interlock provides a robust connection which will not separate during high speed pushing and pulling forces and twisting through tight turns of U-bends.

Abstract: An electrical connector comprises an insulative housing, a number of contacts received in the housing and a pair of retention devices. The housing comprises an elongate base defining a slot for receiving an edge of a card therein and a pair of arms laterally extending from opposite ends of the base. Each arm comprises a spring cantilever and an aperture. Each retention device comprises a main portion, a spring arm and a horizontal solder pad for being soldered to a printed circuit board. The retention device is assembled to the corresponding arm with the main portion movably received in the aperture to ensure coplanarity between the horizontal solder pad and a bottom surface of the housing when the connector is mounted on a printed circuit board.

Abstract: An electrical plug is equipped with an earthing pin 180 comprises an elongate metal body 260 defining a groove for holding captive a split band 460 of a moulded plastic material, which has inwardly facing nodes 480 which are receivable in a transverse passage through the body. The body 260 further defines a longitudinal threaded bore for receiving a threaded shank 380 having a tapered tip which, in use, is seated between the inner nodes on the band 460. When the pin 180 is inserted into a corresponding socket of an existing electrical outlet (not shown) and a circular cap 420 on the exposed end of the threaded shank 380 is rotated, the tip of the shank 400 bears against the nodes 480 on the band 460, thereby expanding the band radially outwardly until it frictionally engages an adjacent portion of the socket in which the pin 180 is located. The pin 180 together with any electrically conducting pins associated with the same plug are hence secured against inadvertent extraction from their respective sockets.

Abstract: An electrically operated heater fan is suspended by a bracket from a building wall using a bracket mount having a plug lock which is releasably lockable within one of a pair of plug receptacles of a standard wall outlet with the plug of the heater fan fitting into the other plug receptacle. The plug lock of the bracket mount comprises a pair of electrically insulated flat slot fitting prongs and an electrically insulated ground opening fitting post which is adjustable between a receptacle insertion position and a receptacle locked in position by a control member rotatable on the bracket mount.

Abstract: An electrical pin 230 has an elongate body which is receivable in a complementary socket of an existing electrical outlet, while two electrically conductive pins on the same plug are simultaneously receivable in respective sockets for establishing a power supply path for an electrical appliance. A resilient deformable ring 238 is held captive by the body of the pin 230. Two metal spheres 234 bearing respectively against an inner peripheral region of the ring 238 lie in a transverse passage 233 extending through the body of the pin 230. A screw 236 lying in a threaded passage 231 intersecting the transverse passage 233 bears against the spheres 234. In use the screw 236 urges the spheres radially outwardly, thereby expanding the ring 238 until it bears frictionally against an adjacent portion of an associated electrical socket. The pin 230 is preferably mounted in an insulating body (not shown) having a switch cover 38 projecting from the body in lateral relationship to the pin.

Abstract: A common, grounded three-conductor male electrical plug including in the grounded blade a spring biased catch for engaging the walls of a female receptacle and locking the plug in the receptacle. An aperture in the plug allows a non-conductive tool to move the catch against the spring bias and away from the walls of the receptacle to unlock the plug and permit removal from the receptacle.

Abstract: An electrical plug for 3-wire line cords includes a plug body having a U-shaped grounding pin. A rise pin is disposed between opposing walls of the U-shaped grounding pin. A locking element extending through the plug body includes a threaded proximal portion and a flat distal portion, the distal portion having a ramp disposed over the rise pin and a serrate edge opposite the ramp with the distal portion disposed within the grounding pin opposing walls. A locking knob is threaded onto the proximal portion. With the plug in an outlet, the knob is rotated clockwise to draw the flat distal portion rearward causing the ramp to ride up the rise pin and to cause the serrate edge to grip the inner surfaces of the grounding socket. Rotating the knob counterclockwise releases the serrate edge to permit withdrawal of the plug from the outlet.

Abstract: A locking electrical plug is provided which has a cooperating tool/key which when rotated in a first direction causes a ground prong extending therefrom to be mechanically expand within a mating female receptacle, thereby preventing inadvertent or accidental removal of the plug from the receptacle, and when rotated in a second direction this again permits the removal of the plug from the receptacle.

Abstract: An electrical plug for the end of an electrical power cord. The plug includes plug prongs and a ground prong, all of which are moveable between retracted and extended positions. The prongs can be locked in the retracted and extended positions, as desired. When the prongs are locked in the retracted position, small children are prevented from attempting to connect the power cord to an electrical outlet. The plug can also be locked in an electrical outlet.