A method for making contact wires for sliprings comprising the steps of: coating and/or plating a wire with a first metal of the group of nickel, chrome or a combination thereof; coating and/or plating the wire with a second metal of the group of gold, silver, or a combination thereof; delivering laser radiation and generating an interference pattern of the laser radiation to the surface of the wire; heating the surface selectively as defined by the interference pattern, modifying of the crystal structure and/or providing protrusions and/or recesses due to melting and/or evaporation of the surface material.

A system for implementing an electrical rotary joint in a large-diameter system using relatively small-diameter capsule slip rings is described herein. The system includes a system rotor that rotates about a system axis of rotation, and a system stator that is stationary with respect to the system rotor. The system also includes at least one conductive contact channel disposed on one of the system rotor and the system stator. The system further includes at least one capsule slip ring (CSR) coupled to the other of the system rotor and the system stator. The at least one CSR has a conductive annular element coupled thereto, the conductive annular element in mechanical contact with the at least one conductive contact channel such that the at least one CSR forms an electrical rotary joint between the system rotor and the system stator.

A system for implementing an electrical rotary joint in a large-diameter system using relatively small-diameter capsule slip rings is described herein. The system includes a system rotor that rotates about a system axis of rotation, and a system stator that is stationary with respect to the system rotor. The system also includes at least one conductive contact channel disposed on one of the system rotor and the system stator. The system further includes at least one capsule slip ring (CSR) coupled to the other of the system rotor and the system stator. The at least one CSR has a conductive annular element coupled thereto, the conductive annular element in mechanical contact with the at least one conductive contact channel such that the at least one CSR forms an electrical rotary joint between the system rotor and the system stator.

Disclosed is a slip ring including: a conductive rotor that is rotatable around a rotation axis; a conductive stator provided coaxially with the rotor; a conductive sphere disposed between the rotor and the stator to form an electric path between the rotor and the stator; and a conductive coil spring provided between the sphere and one of the rotor and the stator and extending in a circumferential direction with respect to the rotation axis to be in contact with the sphere and one of the rotor and the stator.

Disclosed is a slip ring including: a conductive rotor that is rotatable around a rotation axis; a conductive stator provided coaxially with the rotor; a conductive sphere disposed between the rotor and the stator to form an electric path between the rotor and the stator; and a conductive coil spring provided between the sphere and one of the rotor and the stator and extending in a circumferential direction with respect to the rotation axis to be in contact with the sphere and one of the rotor and the stator.

The present invention relates to an electrical connector in particular an electrical connector having at least two terminals that are connected wherein the electrical connector permit movement of each terminal relative to each other. The electrical connector has a first body part having a first terminal; the first terminal is connected to a second terminal formed in a second body part, the first and second body parts are connected together and can move with respect one to another thereby permitting variable angles to be created between an axis defined by the first terminal and an axis defined by the second terminal.

The present invention relates to an electrical connector in particular an electrical connector having at least two terminals that are connected wherein the electrical connector permit movement of each terminal relative to each other. The electrical connector has a first body part having a first terminal; the first terminal is connected to a second terminal formed in a second body part, the first and second body parts are connected together and can move with respect one to another thereby permitting variable angles to be created between an axis defined by the first terminal and an axis defined by the second terminal.

The present invention relates to an electrical connector in particular an electrical connector having at least two terminals that are connected wherein the electrical connector permit movement of each terminal relative to each other. The electrical connector has a first body part having a first terminal; the first terminal is connected to a second terminal formed in a second body part, the first and second body parts are connected together and can move with respect one to another thereby permitting variable angles to be created between an axis defined by the first terminal and an axis defined by the second terminal.

An expandable, mobile structure is capable of sustaining a retracted state and an expanded state, and may be capable of alternately using public utilities as a power supply, or a self-contained off-grid power supply. This allows for use of the mobile structure in a multitude of locations, which are not governed by the presence or absence of an available external power supply. The structure may operate in an on-grid power mode when in an expanded condition, and in an off-grid mode in a retracted condition. The structure includes a different number of zones within the structure in the retracted state as compared to the expanded state. A modular HVAC system provides a different flow path of air in the retracted state and the expanded state.

A rotating brush assembly for an electric motor, including a commutator and a plurality of brushes, each of the brushes rotatingly mounted on an axle disposed between arms coupled to respective first and second brush holders, wherein the brush holders are urged toward said commutator with a spring, and wherein the brushes rotate in a direction opposite the direction in which the commutator rotates.