Abstract: A rotary joint has a body with an even number of body segments. Each body segment holds one transmission line with one RF signal connector at one end and a termination at the opposing end. The body segments are oriented such, that alternatingly in neighboring segments two RF signal connectors or two terminations are next to each other. Two neighboring body segments are connected by a carrier plate. The carrier plate holds an electronic housing where two RF signal connectors are located next to each other, and provides a connection to the RF signal connectors.

Abstract: A rotary joint has a body with an even number of body segments. Each body segment holds one transmission line with one RF signal connector at one end and a termination at the opposing end. The body segments are oriented such, that alternatingly in neighboring segments two RF signal connectors or two terminations are next to each other. Two neighboring body segments are connected by a carrier plate. The carrier plate holds an electronic housing where two RF signal connectors are located next to each other, and provides a connection to the RF signal connectors.

Abstract: A slipring brush comprises a brush body of electrically conductive material, a contact wire for contacting the brush body and a spring for applying mechanical force to the brush body. The brush body has a contact surface for sliding on a slipring track. Furthermore, at least one blind hole is provided in the brush body beginning from the contact surface, to reduce the cross section of the brush body, increasing the current density. Due to the increased current density, wear is reduced and lifetime increased. The outer interface of the brush body remains unchanged.

Abstract: A method and a device are provided for reworking or re-machining the surface and, in particular, the slide tracks of a slip ring while the slip ring is in a built-in state in an appliance or machine using the slip ring. The slip ring is rotated by a drive provided in the appliance for rotating the slip ring during normal operation, or by an auxiliary drive, while a surface-removing cutting tool or surface deforming tool held in a tool holder or carrier adapted to be attached to the appliance or machine is applied to the surface of the moving slip ring to re-machine or recondition the surface. The invention avoids the necessity of dismantling the appliance or machine for the purpose of removing the slip ring for repairs.

Abstract: The invention relates to a sliding contact device for transmitting electrical signals or power between at least two units located opposite one another, whereby at least one unit comprises sideways, which are arranged along the trajectory of motion and which are made of electrically conductive material, and a second unit comprises sliding contacts that are in electrical contact with said sideways of the first unit. The invention is characterized in that, in the second unit, several carbon holders are arranged on a supporting plate with conductor tracks for contacting the carbon.

Abstract: The invention relates to a sliding contact device for transmitting electrical signals or power between at least two units located opposite one another, whereby at least one unit comprises slideways, which are arranged along the trajectory of motion and which are made of electrically conductive material, and a second unit comprises sliding contacts that are in electrical contact with said slideways of the first unit. The invention is characterized in that, in the second unit, several carbon holders are arranged on a supporting plate with conductor tracks for contacting the carbon.