An overhead lift apparatus includes a mounting structure and a rotatable assembly configured to attach a lift unit to the mounting structure. The rotatable assembly is rotatable with respect to the mounting structure about an axis of rotation. The apparatus also includes a rotatable electrical interface disposed in the rotatable assembly, the rotatable electrical interface comprises a static portion and a rotatable portion attached to the rotatable assembly such that the rotatable portion rotates in conjunction with the rotatable assembly. The apparatus also includes a first electrical connector extending from the static portion to a power source connector configured to be connected to an external power source for the lift unit. A second electrical connector extends from the rotatable portion such that the rotatable electrical interface is configured to provide power from the power source to an end of the second electrical connector via the first electrical connector.

An electrical wiring device including a housing including a front cover coupled to at least one body member, the front cover including a plurality of receptacle openings in a major front surface thereof, the plurality of receptacle openings being configured to receive a plurality of plug blades of a corded electrical plug, wherein the plurality of receptacle openings includes at least a ground prong opening and the at least one body member includes at least one set of receptacle contacts including a hot receptacle contact and a neutral receptacle contact; and a shutter assembly positioned within the housing and including a first shutter member coupled to a second shutter member, wherein the first shutter member is configured to move from a first position to a second position when a ground prong is inserted through the ground prong opening.

A steering roll connector configured to operatively engage a steering column. The steering roll connector may comprise a roll stator and a roll rotor telescoped in and rotatable with the roll stator. The roll rotor may have a wall and a surface, and the wall may define an opening for receiving the steering column. A slide may be supported by and movable on the surface from an unengaged position to an engaged position where the slide is positioned to engage and prevent the relative rotation between the roll rotor and roll stator. A spring may operatively engage the slide to causes it to be in the engaged position. When the steering column is received in the opening, a lever arm may operatively engage and pull the slide to the unengaged position.

The disclosed invention is a slip ring assembly that provides electrical power transfer to centrifugal turbomachinery while minimizing or eliminating the presence of wires in the flow path. The device transfers electrical power through a set of wires connected to a plurality of brushes that are held rotationally stationary, but allowed to displace axially or radially through a set of springs. The brushes make contact with conductive busbar rings, transferring electricity to the busbar rings. The busbar rings rotate with the centrifugal turbomachine with a set of wires that connect the busbar rings to the blades or other aerodynamic surfaces of the centrifugal turbomachine.

The disclosed invention is a slip ring assembly that provides electrical power transfer to centrifugal turbomachinery while minimizing or eliminating the presence of wires in the flow path. The device transfers electrical power through a set of wires connected to a plurality of brushes that are held rotationally stationary, but allowed to displace axially or radially through a set of springs. The brushes make contact with conductive busbar rings, transferring electricity to the busbar rings. The busbar rings rotate with the centrifugal turbomachine with a set of wires that connect the busbar rings to the blades or other aerodynamic surfaces of the centrifugal turbomachine.

The invention relates to a connecting device (1) for transmitting electrical signals to and/or from a steering wheel (23) of a motor vehicle, having a positionally fixed component (2) for positionally fixed installation in the motor vehicle, having a hub part (3) which is rotatably mounted on the positionally fixed component (2) and which serves for connection to the steering wheel (23), and having a locking element (6) which is movably mounted on a bearing part (3) and which, during the connection of the hub part (3) to the steering wheel (23), is movable counter to a spring force of a spring element (14) from an installation position, in which a blocking bar (9) of the locking element (6) blocks the rotation of the hub part (3) relative to the positionally fixed component (2), into an operating position, in which the rotation of the hub part (3) is enabled, wherein the connecting device (1) has a plunger (18) which is mounted movably relative to the locking element (6) and which, during the connection of the hub part (3) to the steering wheel (23), moves the locking element (6) into the operating position, in which the locking element (6) is held spaced apart from the steering wheel (23) by the plunger (18).

The invention relates to a slip ring assembly of a slip ring transducer for transducing electrical signals between a stationary part and a part which rotates around an axis of rotation, comprising: at least one slip ring for transducing one of the electrical signals between the slip ring and at least one slip element trailing thereon, in particular a brush, and a slip ring shaft for securing the at least one slip ring thereon, the slip ring shaft having guiding channels distributed along its circumference in order to receive electrical lines for electrically connecting the at least one slip ring.

The invention relates to a slip ring assembly of a slip ring transducer for transducing electrical signals between a stationary part and a part which rotates around an axis of rotation, comprising: at least one slip ring for transducing one of the electrical signals between the slip ring and at least one slip element trailing thereon, in particular a brush, and a slip ring shaft for securing the at least one slip ring thereon, the slip ring shaft having guiding channels distributed along its circumference in order to receive electrical lines for electrically connecting the at least one slip ring.

A connector module may include: a connector body including an interior space with an empty area therein; and a connector part disposed on one side of the connector body. The connector part may include: a connector protruding from the connector body; and a connector holder seated in the empty area of the connector body and configured to secure the connector thereto. The connector holder may be configured to move the connector in one direction in response to an external force. A fixing part may be connected to one side of the connector body in a hinged fashion and being rotatable relative to the connector.

An interface for coupling with a percutaneously implantable lead is described. The interface includes a rotation based system to engage the terminal connector of the lead. The interface includes a brake which retains the lead in the lead port through friction, but allows the lead to exit the lead port if sufficient force is applied. The interface can be coupled with the lead without removing a stylet or stiffening wire from the lead.