A linear electrical contact slip structure for conducting electricity between two regions of a tool string while deployed within a wellbore. The linear electrical contact slip maintains an electrical connection between a piston structure and a collar structure, where either structure can be a stroker section or a stator section, and where the electrical connection is maintained when the stoker section is either stationary or in motion. The electrical connections between the piston and collar are grouped along the interior hollow surface of the collar, corresponding to contacts on the exterior of the piston head. The piston and collar are configured to prevent relative rotational motion, but to allow relative linear motion, by use of projections from the piston that match grooves in the collar.

A sliding-contact power supply system and a three-dimensional circulating garage having the same are provided. The sliding-contact power supply system includes: a plurality of sub-sliding wires, each of the plurality of sub-sliding wires being adapted to be electrically connected to an outside power supply; a plurality of insulation segmentation elements, each of the plurality of insulation segmentation elements being connected between two sub-sliding wires; and a plurality of current collectors, each of the plurality of current collectors being electrically connected to the sub-sliding wire; wherein the plurality of sub-sliding wires and the plurality of insulation segmentation elements form a sliding wire guide rail having a ring shape, and each current collector is slidably disposed on the sliding wire guide rail.

The disclosure relates to a power-transfer unit for a sealing unit of a packaging machine comprising a support, intended to be attached to a sealing unit, a power bar comprising a contact-initiation section, a contact-termination section, and an intermediate section therebetween, the power bar being resiliently suspended in the support and being movable along a first direction being normal to a contact surface of the intermediate section. The power bar is suspended in the support by a first leaf spring.

The disclosure relates to a power-transfer unit for a sealing unit of a packaging machine comprising a support, intended to be attached to a sealing unit, a power bar comprising a contact-initiation section, a contact-termination section, and an intermediate section therebetween, the power bar being resiliently suspended in the support and being movable along a first direction being normal to a contact surface of the intermediate section. The power bar is suspended in the support by a first leaf spring.

A current collector has a sliding contact for making electrical contact with a conductor profile of a conductor line and an antenna for insertion into a longitudinal slot, running in a longitudinal direction of the conductor line. The sliding contact and the antenna can be moved jointly towards the conductor profile in a feed direction by a feed device of the current collector. A conductor line has a conductor profile running in a longitudinal direction, having an elongate cavity and a longitudinal slot adjoining the cavity and running in the longitudinal direction. The conductor profile has at least one sliding contact groove for the sliding contact of the current collector. The antenna is mounted on the current collector so as to be moveable with respect to the sliding contact in the feed direction, and the conductor profile has at least one spacer slide surface running in the longitudinal direction, for a spacer slide of the current collector.

The exemplified systems and methods provide an extension cord system having a cord that is configured to slidably guide a movable plug carriage having conventional plug receptacle. In some embodiments, the movable plug carriage is configured with pierce-able conductors that can be inserted and retracted from a sealed skin of the cord. In other embodiments, the sealed skin can be fastened and unfastened by the movable plug carriage as the movable plug carriage moves over the cord. In yet other embodiments, the movable plug carriage is attachable and detachable from the cord.

The present invention may comprise: a body including a first plate facing a first direction, a second plate facing a second direction opposite to the first direction, and at least one printed circuit board; and at least one receptacle disposed at the body to be connected to an external connector, wherein the receptacle comprises: a receptacle body which is connected onto the printed circuit board; a receptacle shell to which the external connector is connected and which is slidable in the receptacle body in a third direction vertically facing each of the first and second directions; a guide device which guides the sliding movement of the receptacle shell; a molded member which is coupled to the receptacle shell and configures a connection position of the external connector; and a connection structure which electrically connects the receptacle shell and the receptacle body.

The present invention may comprise: a body including a first plate facing a first direction, a second plate facing a second direction opposite to the first direction, and at least one printed circuit board; and at least one receptacle disposed at the body to be connected to an external connector, wherein the receptacle comprises: a receptacle body which is connected onto the printed circuit board; a receptacle shell to which the external connector is connected and which is slidable in the receptacle body in a third direction vertically facing each of the first and second directions; a guide device which guides the sliding movement of the receptacle shell; a molded member which is coupled to the receptacle shell and configures a connection position of the external connector; and a connection structure which electrically connects the receptacle shell and the receptacle body.

A device for controlling a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a power car having at least one such device, utilize a pilot control circuit, a working pressure control circuit and an adjustment device including a relay valve. The pilot control circuit adjusts a pilot control pressure and the relay valve uses a pilot control pressure to control a power pressure to provide a required working pressure for the pressing force of the current collector.

A device for controlling a required pressing force from a current collector of a vehicle on an overhead line, a method for using such a device and a power car having at least one such device, utilize a pilot control circuit, a working pressure control circuit and an adjustment device including a relay valve. The pilot control circuit adjusts a pilot control pressure and the relay valve uses a pilot control pressure to control a power pressure to provide a required working pressure for the pressing force of the current collector.