A bearing includes an inner ring having an outer surface defining a first pocket therein. The surface of the first pocket can be provided with a first conductive coating. The bearing includes an outer ring concentric with and radially outward from the inner ring. The outer ring has an inner surface defining a second pocket therein, and a surface of the second pocket can be provided with a second conductive coating. A plurality of rolling elements are disposed between the inner ring and the outer ring. An electrically-conductive shunt ring assembly couples the inner ring to the outer ring and is configured to inhibit electrical current passing between the inner ring and outer ring from passing through the rolling elements. The shunt ring assembly is sized and configured to enable lubricant to flow freely through the bearing. In some embodiments, the shunt ring is a conductive snap ring.

The invention concerns a handle for a video endoscope for medical or industrial applications, comprising a housing and an interface portion, where the interface portion includes a first connector element at its distal end connected to an electric transmission element that is connectable to a connector element of an associated elongate shaft to form a detachable electrical and/or mechanical connection between the handle and the associated shaft. The includes an electrical connection assembly arranged at an exterior of the interface portion forming an electrical connection between the electric transmission element and a stationary electric and/or electronic component of the handle. The handle also includes at least a first bearing for rotatably supporting the interface portion in and/or at the housing, such that when the shaft and handle are connected the shaft is rotatable via the rotatably supported interface portion relative to the housing of the handle.

A video endoscope that includes a handle with a housing and an interface portion rotatably mounted relative to the housing, and an elongate shaft with one or more electronic image sensors, wherein a proximal end section of the shaft is detachably connected to the interface portion of the handle, where the interface portion includes a first connector element electrically connected to an electric transmission element of the interface portion and the shaft includes a second connector element electrically connected to the one or more electronic image sensors, the first and second connector elements co-operating to form a detachable electrical connection, and where the handle includes an electrical connection assembly arranged at an exterior of the interface portion forming an electrical connection to at least one stationary electric and/or electronic component of the handle in a multiplicity of rotational positions of the interface portion relative to the housing.

An apparatus is disclosed. The apparatus has a base assembly, a movable assembly that is movably supported by the base assembly and that is movable relative to the base assembly, a structural assembly that is supported by the movable assembly, a plurality of electrical assemblies supported by the structural assembly, and a first electrical connector that is electrically connectable to some of the plurality of electrical assemblies, the first electrical connector being attached to the movable assembly and including a first plurality of electrical members. The apparatus also has a second electrical connector that is electrically connectable to a power source, the second electrical connector being attached to the base assembly and including a second plurality of electrical members, and one or more contact members that are movably disposed relative to the base assembly.

An apparatus is disclosed. The apparatus has a base assembly, a movable assembly that is movably supported by the base assembly and that is movable relative to the base assembly, a structural assembly that is supported by the movable assembly, a plurality of electrical assemblies supported by the structural assembly, and a first electrical connector that is electrically connectable to some of the plurality of electrical assemblies, the first electrical connector being attached to the movable assembly and including a first plurality of electrical members. The apparatus also has a second electrical connector that is electrically connectable to a power source, the second electrical connector being attached to the base assembly and including a second plurality of electrical members, and one or more contact members that are movably disposed relative to the base assembly.

An electric contact for an electrical plug connection includes a receptacle open against a plugging direction and adapted to receive a mating contact in the plugging direction and a plurality of roller contact bodies made of an electrically conductive material and projecting into the receptacle. The roller contact bodies are rotatably held on at least a pair of opposing sides of the receptacle and each form a part of a contact surface adapted to contact the mating contact.

A rotatable device powered by continued electricity supply, having a supporting shaft, a bearing, a rotary body, a mounting seat, an electrical conductive member, and a brush. The bearing includes an outer ring and an inner ring. The rotary body is connected to the outer ring. One of the electrical conductive member and the brush is connected to the rotary body, and another one of the electrical conductive member and the brush is connected to the mounting seat. A windmill that uses the rotatable device is also provided.

An electrical contact component for a contact socket of an implantable medical device includes an electrical contact element for electrically contacting an electrical counter contact (such as an electrode plug), and an electrically conductive outer ring having a plug borehole for receiving the electrical counter contact. The interior of the outer ring includes a depression receiving the electrical contact element. The electrical contact element is formed by contact bodies (such as balls or rolls), a cage element for receiving the contact bodies, and at least one electrically conductive spring element.

A bearing includes an inner ring having an outer surface defining a first pocket therein. The surface of the first pocket can be provided with a first conductive coating. The bearing includes an outer ring concentric with and radially outward from the inner ring. The outer ring has an inner surface defining a second pocket therein, and a surface of the second pocket can be provided with a second conductive coating. A plurality of rolling elements are disposed between the inner ring and the outer ring. An electrically-conductive shunt ring assembly couples the inner ring to the outer ring and is configured to inhibit electrical current passing between the inner ring and outer ring from passing through the rolling elements. The shunt ring assembly is sized and configured to enable lubricant to flow freely through the bearing. In some embodiments, the shunt ring is a conductive snap ring.

The present disclosure relates to a conductive slip ring for logging while drilling (LWD) instrument. The present disclosure utilizes a mechanical conductive slip ring to solve the problems of transmission of electric power and signals between two structures that have relative rotation, and the conductive slip ring has a simple structure, doesn't involve any complex circuit, and has low cost and high reliability. With the conductive slip ring in the present disclosure, there is no power transmission efficiency problem or signal transmission error rate problem. The conductive slip ring has high temperature-resistant, pressure-proof, and vibration-roof abilities, and can be applied widely.