A system is provided comprising of a first plug module and a second plug module, which can be plugged together, wherein the first plug module has a locking arrangement, whereby the plug modules can be reversely locked to each other. The system can be arranged within the housings of industrial plugs and is thus better protected from mechanical loads.

An electrical train coupling having two coupling halves, each including at least one electrical contact element, which is electrically contactable with an electrical contact element of the particular other coupling half, including one electrical connection per coupling half. At least one electrical contact element of at least one coupling half is supported by a decoupling element movable against the force of a force accumulator at least also along a coupling direction of the coupling halves, the decoupling element, in a coupled state of the two coupling halves, being moved against the force of the force accumulator into an electrically conductive contact of the electrical contact element with the electrical connection of the coupling half and, in a decoupled state of the two coupling halves, moved by the force of the force accumulator with the electrical contact element, being lifted off of the electrical connection to disconnect the electrically conductive contact to the electrical connection.

A connector receptacle for connecting with a corresponding connector plug coupled with electrodes being used for performing EMG procedure on a patient is provided. The receptacle includes a first ball bearing pressing against a first end of a housing of the plug and, preferably, a second ball bearing pressing against a first end of the housing of the plug when the plug is connected to the receptacle for exerting a retention force against the plug. The first and the second ball bearings are pressed against the first and the second ends respectively by using a spring force generated, for example, by a retention band.

A quickly assembled cable connector includes a mounting device set including a first mounting device and a second mounting device, a pressing device set including a guide member and a pressing member and mounted in the second mounting device, and a cable inserted properly through the first mounting device, the guide member, the pressing member and the second mounting device for allowing the tubular plug portion of the second mounting device to be plugged into the first mounting device so that the first mounting device and the second mounting device squeeze an object therebetween, the first mounting device pushes the pressing member toward the guide member, and the clamping neck is forced inwardly by the guide member to clamp the cable in position.

A connector comprising a cylindrically shaped socket and a plug that may be connected to the socket in a removable manner, in which a plurality of contacts are disposed being mounted in a contact block. It comprises a ring with ogive shaped parts (21) assembled in a membrane (22), the ogive shaped parts and the membrane being covered by a locking spring (25).

A plug and socket combination together with a light source for achieving the look and effect of a recessed lighting fixture with only a standard electrical junction box and without any type of recessed lighting housing. For renovations, a plug and socket combination can be used with an existing conventional recessed lighting housing.

Disclosed is a push-button lock for locking a plug-in connector housing. The lock has a push-button body with a cylindrical unlocking recess containing an unlocking pin. The appropriate interaction of an outer contour of the unlocking pin, an inner contour of a through-opening of the plug-in connector housing and the push-button body by at least one locking element and two springs allows the plug-in connector housing to be locked and unlocked with great ease of use, the operating concept being particularly self-explanatory.

A socket and plug are used to connect an electrical fixture with electrical power supply wiring, and for mounting the fixture on a support. The socket has internal cavities with electrically conductive contact terminals which establish an electrical connection between the electrical power supply wiring and the socket. A plug is rigidly fixed to a fixture, and is inserted into the socket. The plug has male connectors electrically connected to the fixture and engageable with the conductive terminals within the socket. A releasable latch is carried on the combination of the plug and the socket for releasably mounting the fixture on the support. A hub surrounds the plug and socket, and houses a plurality of sensor modules releasably connectable to a periphery of the hub. The sensor modules each include an electronic device operative to generate or transmit electronic data.

An electrical conductor assembly for use in a power distribution assembly includes an electrical conductor. A casing covers at least a portion of the electrical conductor. The casing insulates the at least a portion of the electrical conductor.

Disclosed herein is an air cleaner capable of being coupled or separated in a vertical direction to improve space utilization. An air cleaner may include a first air cleaning module provided with a first connection unit, and a second air cleaning module detachably coupled to the first air cleaning module and provided with a second connection unit, wherein the second connection unit is configured to be detachably coupled to the first connection unit, and configured to be rotatable with respect to the first connection unit when the second connection unit is coupled to the first connection unit.